The existential stakes of platform governance: a critical literature review

This study introduces a comprehensive overview of literature concerning the concepts of regulation and governance, and attempts to connect them to scholarly works that deal with the governance of and by social media platforms. The paper provides fundamental definitions of regulation and governance, along with a critique of polycentricity or multi-stakeholderism, in order to contextualise the discussion around platform governance and, subsequently, online content regulation. Moreover, where traditional governance literature conceptualised stakeholders as a triangle, this article proposes going beyond the triad of public, private and non-governmental actors, to account for previously invisible stakeholder clusters, like citizens and news media organisations. This paper also contends that, while platform governance is an important field of study and practice, the way it has been structured and investigated so far, is posing an existential risk to the broader internet governance structure, primarily, because of the danger of conflating the internet with platforms. As a result, there exists a timely need to reimagine the way in which we understand and study phenomena related to platform governance by adjusting our conceptual and analytical heuristics. So, this article wishes to expand the theorisation of this field in order to better engage with complicated platform governance issues, like the development of regulatory frameworks concerning online content regulation.


Amendments from Version 1
The manuscript, following the reviewers' comments on its first version, underwent significant revisions, without losing its core argument: we ought to start thinking of platform governance in a way that does not replicate platform-deterministic imaginaries, especially these that seek to conflate the internet with a handful of private online platforms.The updated text sought to i) make the paper's purpose clearer, ii) make the paper's argument more coherent, and iii) further elaborate on previously underdeveloped concepts.Specifically, the revised paper's purpose has been made clearer: it serves primarily as a critical literature review of works that have studied regulation, governance, internet governance, platform governance and, even, media governance; this major change is also reflected in the author's decision to change the paper's title.The paper's argument has been made more coherent: it contends that the classic "governance triangle" model is not enough to accommodate modern governance structure's complexity and, thus, needs expansion.Additionally, the updated version elaborated further on the concept of governance, especially from a political-science perspective.Last, the author also revised the figure accompanying the example of the paper's suggested operationalisation of how an expansion to the governance triangle could be formulated.Concluding, it is important to emphasise the word "operational" in this article: this work is part of a larger PhD research project studying the political economy of platform regulation; therefore, this manuscript does not aim to propose a reinvention of the way in which we study governance, but rather suggest how we could better study it in specific contexts -the example used in this instance is the news industry precisely due to the researcher's doctoral topic.

Plain language summary
This article examines academic literature regarding the notions of regulation and governance, trying to define what they mean, how they are used depending on the field of application and how they are framed specifically when studying online platforms (e.g., Facebook, Google, etc.).The author begins by acknowledging that, while this is not an exhaustive research, there has been a wide embrace of terms like "platform governance" and "online content regulation," even by policymakers.Therefore, the author is interested in defining what these concepts mean and how they can be used to study online platforms.The author also provides a brief historical retrospective on how academics have studied the way that the internet is structured and governed by participating stakeholders.Additionally, the author believes that, whereas in the early 1990s cyber-utopians imagined the internet to be a democratised, decentralised and self-regulated space, away from state interventions, we are now in the age of platform governance.Platform governance is a term inherently connected with the multiplicity and plurality of stakeholders but places online platforms at the epicentre.This is quite useful because it allows us to better engage with platforms and, specifically, social media and infomediaries.So, where internet governance began by celebrating independence, platform governance begins by celebrating collaborations with a myriad of stakeholders, including states.Finally, the paper argues that by
In this paper, regulation is defined as a governance mechanism, involving the intentional -direct or indirect -intervention in the activities of a stakeholder, with the intention to change a stakeholder's modus operandi, which, in turn, may have unpredictable -yet measurable -consequences to the governance regime (Black, 2008;Koop & Lodge, 2015;Levi-Faur, 2011).For reasons of clarity, governance is defined here as a complex networked structure that accommodates different stakeholders, who are connected to and coordinated through various types of regulations, norms and practices (Héritier, 2002;Offe, 2009;Stoker, 1998).As can be inferred, there is an innate connection between regulation and governance insofar as governance offers the structure in which political-economic relations formulate, primarily, through regulation.
What is more, this paper approaches governance as a bifold concept: governance as structure and governance as power.The former allows us to examine an ecosystem from a structural standpoint and map its stakeholders, whereas the latter accounts for governance's analytical element that allows us to inquire an ecosystem's power relations through their (in)formal arrangements and deliberations or produced regulatory frameworks (Gjaltema et al., 2020;Mattli & Woods, 2009).
The works considered here are meant to be representative of relevant literature and their selection was done by selecting key publications connected with the topics of platform governance, as well as works that have studied regulation and governance This article is by no means an exhaustive piece of research, but rather it is an invitation to investigate the interdisciplinarity and depths of a vibrant field, which seeks to understand the governance of online platforms and their regulation, as well as their implications relating to democracy and public discourse.This is an important field, not only because it expands our research horizons, but also because it aims to inform stakeholders found at every position within the governance spectrum.It is thus a timely effort to properly situate the discussion revolving around platform governance and propose a new way to theorise about regulations that aim to tackle complex platform-related issues, such as content moderation.
The paper is structured in the following way: the first section introduces the discussion around regulation and governance, the second section zooms in on polycentric or multi-stakeholder governance regimes, and the final part attempts to propose an operational framework to better study platform governance to a) consider actors that do not fall in traditional categories (i.e., state, firm, NGO), b) consider inter-stakeholder competing interests, and c) consider the importance of citizens and users in modern networked structures.As this is part of a long-term research project, it is bound to change over time; however, the benefit of the proposed operationalisation is adjustability to the deployed field of inquiry.
Finally, the literature review presented here, attempts to surface an existential risk that lies with the way that current scholarship approaches platform regulation and governance: that of conflating the internet with large social media platforms.Therefore, it is also this paper's goal to discern the two so as to study platform governance as a distinct field from that of the broader internet governance structure and contribute to a muchneeded reimagination of the way that regulatory frameworks are developed within current governance structures.

Regulation
Regulation consists of a large gamut of factors, including "politics, policies, institutions and effectiveness of formal and informal controls" (Levi-Faur, 2011, p. 16); in other words, to study regulation, one has to take into consideration a plethora of elements, alongside their innate political and, often, conflictual attributes.David-Levi Faur offers us a comprehensive overview of the multidisciplinary field of regulation in his seminal book Handbook on the Politics of Regulation (2011), inviting us to consider how regulation's meaning can change depending on the field of employment.
For instance, regulation has become a distinct field of international practice and research, especially after the introduction of the economic theory of regulation (Stigler, 1971).Certainly, the definition of regulation varies even among economic theorists: some argue that it acts as another weapon of neoliberalism against the welfare state (Majone, 1994), while others believe it to be an important tool to fuel competition (Levi-Faur, 2011, p. 3).
In any case, the concept of regulation expands well beyond the theory of economy and covers the field of standard-setting, administration and, more broadly, the power of institutions.Some scholars have talked about the benefits of regulation against consumer exploitation, environmental misdoings and other activities in a rather pragmatistic way (Koop & Lodge, 2015;Marx, 2011).Moreover, one could not neglect adding to this long interdisciplinary list, the framing of regulation by social and political sciences as a means of control (Beresford, 2003;Levi-Faur, 2011, pp. 3, 16) that, inter alia, seeks to dictate a change in behaviour (Koop & Lodge, 2015).
Levi-Faur frames it as "the ex-ante bureaucratic legalisation of prescriptive rules and the monitoring and enforcement of these rules by social, business, and political actors on other social, business, and political actors" (Levi-Faur, 2011, p. 6;emphasis theirs).Consequently, this is a definition with a distinct organisational approach to regulation, while excluding the "legislative or judicial rule making" (ibid).In other words, Leiv-Faur describes a co-regulatory framework, in which the state sets rules, that are then monitored and enforced through the collaboration of social, business, and political actors.Elsewhere, Koop and Lodge frame regulation as following: "[it is the] intentional intervention in the activities of a target population, where the intervention is typically direct -involving binding standard-setting, monitoring, and sanctioning -and exercised by public-sector actors on the [activities] of private-sector actors" (Koop & Lodge, 2015, p. 106).The two definitions share the same characteristics concerning how regulation works (i.e., standard-setting and not rule-making, monitoring and enforcement) and allow us to consider, on the one hand, the collaborative nature of regulation (i.e., multi-stakeholderism) and, on the other hand, its pre-emptive aspect meant to control behaviour.
In addition, one other significant common point of the definitions is the development of targeted and binding rules, which Black purports aim to "change the behaviour of others […] through a combination of rules and norms" (Black, 2008, p. 139).As a result, we can further distinguish regulation according to its end-goals,.So, on the one part, there is regulation that serves the "public interest" (Hofmann et al., 2016(Hofmann et al., , p. 1410;;Levi-Faur, 2011, p. 28) and, on the other, regulation that "mainly serves private interests," which some have called "deregulation" (Levi-Faur, 2011, p. 28).It is made, thus, visible that the envisioned goal of regulation as beneficial to the public interest is by no means a given; it is hard to argue that all actors in a competing environment share the same values.It should be also noted that scholars of social media platforms have been approaching regulation with a "public-interest" approach, following the long tradition of media and journalism (Napoli, 2015;van Dijck et al., 2018).This is why it is very important to acknowledge that regulation is itself a product of negotiations and power dynamics.Therefore, while regulation concerns primarily ex-ante standard-setting or rules, it may be possible to predict a regulation's outcomes (e.g., what type of content will be deemed illegal or violating a platform's policy) but its long-term effects on governance are unpredictable.To this end, some argue that the key way of mitigating such regulatory risk is the multi-stakeholder governance model (Black, 2008).In other words, regulation that is developed by a single authority with specific results in mind is less flexible and, thus, less effective when dealing with ever-everchanging phenomena; hence, polycentricity is often framed as panacea, which has come to monopolise the way of analytically framing the discussion revolving around governance (Carr, 2015;Hofmann, 2020).At any rate, as relevant literature attests, all governance structures include a multitude of different stakeholders deliberating regulatory frameworks, which has accelerated the decentralisation of state power, yet has exacerbated the complexity of governance regimes (Abbott & Snidal, 2009;Bernstein & Cashore, 2007;Büthe & Mattli, 2011;Levi-Faur, 2011;Majone, 1994).
• Co-regulation: This type of regulation primarily refers to the attempt of combining the 'best' of all three actors' competencies, which Abbott and Snidal argue are: "interdependence, representativeness, expertise, and operational capacity" (p.66).We could argue that this type of regulation acts as the cornerstone of the polycentric regime and is thus often depicted as essential to democratic representation and plurality (Black, 2008;Cammaerts & Mansell, 2019) 2018).However, it can work as the "baseline" (Gorwa, 2019b, p. 8) upon which other types of regulation are built, "either as complements to fill in certain gaps, or as substitutes to proposals perceived as overly invasive or harmful to human rights" (ibid).Its legitimacy can vary depending on the state which regulates and the political state of affairs (e.g., democratic processes, political representation, etc.).Accountability is high because there are legal consequences to actors who do not abide by the state's regulation and it is the state that will hold to account a rogue actor.However, it should be noted that this too is to be taken with a grain of salt because, on the one hand, the state has its own agenda (e.g., to satisfy electorates) and, on the other, because the state itself might avoid accountability due to authoritative concentration of power.
Levi-Faur adds some nuances to the traditional typology: according to him, "pure self-regulation" (p.531) is a branch of "[hybrid] meta-regulation," which refers to a confined role of the regulator to the "institutionalisation and monitoring" of standards and rules (p.11).He also adds another type of regulation, that of "[hybrid] multi-level regulation," emphasising the geopolitical implications of regulators, where the "regulatory authority is allocated to different levels of territorial tiers" (ibid).This paper contends that while the latter may add an important nuance to critical analyses, the former rather complexifies the discussion; conversely, we propose restricting meta-regulation to that, which "regulates any other form of regulation" (Parker in Levi-Faur, 2011, p. 11).In any case, by going through the above-mentioned typology of regulations, it can be made clear that the concept of regulation is inherently tied to the notion of governance; this is because regulation is, in and of itself, an exercise of authority and power aiming to shape governmental structures (Kjaer & Vetterlein, 2018).
As a result, many scholars have been increasingly treating regulation and governance almost synonymously (Hofmann et al., 2016), while some have been talking about "regulatory governance" (Kjaer & Vetterlein, 2018): that is, "governance through regulation" (ibid, p. 499).However, it is not entirely sure as to why develop the concept of "regulatory governance," given that modern multi-stakeholder governance regimes implicitly involve structuring power relations through regulation -or its lack thereof.Nevertheless, Kjaer and Vetterlein provide a detailed and convincing account of the historical aspect of regulation as a governance praxis, which is in line with this paper's framing.
Subsequently, in the next section we will cover governance.We should first underline that regulation and governance are not synonymous; treating them as such "[strips regulation] of some analytical potential" (p. 6) and undermines potential regulatory frameworks, exactly because it restricts our theoretical understanding of volatile fields, like that of platform governance.As a result, this paper studies the space between governance and regulation, following thus the political sciences' turn to these concepts (Black, 2008;Braithwaite, 2011;Braithwaite et al., 2007).Perhaps, even more importantly, this would allow us to resituate the discussion around governance and broaden our analytical horizons.Consequently, we ought to combine regulation and governance as a theoretical framework to deepen our understanding of power relations in networked environments and, even, their political economy.
Concluding, the paper proposes to define regulation as a governance mechanism, involving the intentional -direct (i.e., applying standards to a specific actor or cluster of actors) or indirect (i.e., establishing and applying standards to the environment in which an actor is active; Koop & Lodge, 2015, p. 4)-intervention in the activities of a stakeholder, with the intention to change that stakeholder's modus operandi, which consequently has unpredictable consequences to the rest of the governance environment, given that governance is a dynamic and negotiable process.

Governance
As mentioned in the introduction, this paper takes into account the bifold nature of governance: both as a concept used to describe the shift from one authoritative source of power (i.e., the state) to a multiplicity of stakeholders and as an analytical vehicle to analyse power relations of these stakeholders.While the root of governance can be found at the science of new institutional economics (Bulmer, 1998;Puppis, 2010, p. 135), this paper is predominantly interested in its development by social and political scientists.As such, in this article, governance is primarily understood as that politically charged notion that signifies "to govern" (Gorwa, 2019b, p. 2) and, specifically, to govern through regulation.
Governance, in this sense, possesses the attribute of authority that is tied with power, more akin to a Foucauldian interpretation as "the multiplicity of force relations immanent in the sphere in which they operate, and which constitute their own organization" (Foucault, 1978, p. 92).Therefore, governance does not only have to do with the power of state over the public, as Foucault argued (ibid), but it is expanded to include the balance of relations within a structured or networked space.Put simply, the power in "power relations," that constitute governance, symbolises the interdependence, as well as the contentious interests among actors, which in turn, surface the "power plays" (Carr, 2015) that irradiate the political economy of a given field.
Furthermore, governance, has been extensively studied in tandem with international relations, as the movement of globalisation claimed a significant part of governmental, that is, state power (Kjaer & Vetterlein, 2018, p. 500).In his paper on media governance, Puppis reviews relevant political science literature and suggests that exist two approaches to defining governance: a narrower and a broader (Puppis, 2010).
According to the narrower approach, governance is framed as a complex and multi-layered network of power relations among various stakeholders, "creating the conditions for ordered rule and collective action" (Stoker, 1998, p. 17).Subsequently, here, governance marks the shift from government "to a new process of governing" (Rhodes, 1996, pp. 652-653), where the state is restricted to "political steering" of "non-hierarchical" governance structures (Héritier, 2002, p. 2, as cited in Puppis, 2010, p. 137).Additionally, according to the broader approach, governance "[goes] beyond so-called new forms of regulation and [focuses] on collective coordination (emphasis theirs) in general" (Puppis, 2010, p. 137).Consequently, the broader approach to defining governance takes into account the role of the state and involves "a mix of governing efforts by public and private actors occurring at different levels and in different modes" (Kooiman, 2003, p. 3).As a result, in this approach, the state is replaced as the central authoritative node with "a multiplicity of governing and each other influencing actors" (Kooiman & Van Vliet, 1993, p. 64, as cited in Stoker, 1998, p.17) but still holds its "monopoly on the legitimate use of coercion" and regulatory intervention (Black, 2002;Puppis, 2010, p. 137).
I argue that these two approaches are not oppositional one to another but rather highlight different aspects of governance.
For instance, those who attempt to narrowly define governance as the new model of "governing without government" (Rhodes, 1996) may -inadvertently -promulgate the neoliberal "minimal state" paradigm (Bevir, 2009, p. 5, as cited in Puppis, 2010, p. 137), in which the state is limited to a managerial position and several of its functions are outsourced to the private sector (Büthe & Mattli, 2011;Rhodes, 1996;Rosenau, 1992).As such, it seems that both approaches understand that governance signifies that "boundaries between and within public and private sectors have become blurred" (Stoker, 1998, p. 17), but differ primarily in assessing the state's role.
According to the Foucauldian notion of "governmentality" (gouvernementalité), which asks "how to govern" (Foucault et al., 1991, p. 7), we could frame all forms of regulation as the mechanism for enforcing, preserving and/or expanding governance.We could draw here an ontological parallel between this property of regulation and Foucault's notion of government.Foucault argued that government refers to "the conduct of conduct" aiming to "shape, guide or affect the conduct of some person or persons" (Gordon, 1991, p. 7).It seems, then, that there is a shared understanding of regulation's raison d'être as a mechanism to alter behaviour (ibid, p. 5).
As hinted earlier, non-state actors have been increasingly taking up roles and responsibilities that were once exclusively held by the state, which has been progressively limited to a "regulatory state" (Braithwaite, 2011), fuelling what some scholars have deemed as "regulatory capitalism" (Braithwaite, 2008).Ever since the 1970s, with the Keynesian policies gradually falling apart in the Western world and the domination of neoliberalism (Carr, 2015, p. 643;Foucault et al., 1991), state power has been dispensed to various non-state actors (Majone, 1994;Mattli & Woods, 2009;Mazzucato, 2014).So, the current "networked governance" landscape (Braithwaite et al., 2007;Drahos & Krygier, 2017) does not easily allow for topdown regulation, nor a traditional distinction between private and public actors.
To summarise, this paper approaches the definition of governance in two interrelated ways: governance as structure and governance as power.The former refers to governance as a complex networked structure that accommodates different stakeholders that are connected and coordinated through various types of regulations, norms and practices, whereas the latter refers to governance as a politically charged notion that allow for power relations among governance stakeholders to formulate, primarily, through regulations.What is more, these two approaches hold different analytical purposes: the former is used as a way to conceptualise governance structures based on its outcomes (e.g., Abbott and Snidal's "Governance Triangle"), whereas the latter is used as a way to study the procedures that form the stakeholders' power relations (e.g., how a regulation was formed).
Regulation, governance, and multi-stakeholderism Regulation and governance studies has recently emerged as an interdisciplinary field of scholarship which, as a founding principle, seeks to inform regulatory and law studies with the concept of governance (Braithwaite et al., 2007) As a result, these multi-stakeholder environments1 are contentious fora, where power relations among actors surface the interdependence of one another, while shaping the governing status quo, which is "most likely to promote their own interests" (Carr, 2015, p. 645).Moreover, this situation also reinforces the "radical pluralist" (Cammaerts & Mansell, 2019) criticism of the consensual "market place of ideas" (Helberger, 2020), insofar as the "bargaining" or "regulatory game" (Abbott & Snidal, 2009, p. 48;Levi-Faur, 2011, p. 11) among stakeholders does not necessarily promote legitimacy and fairness but may perpetuate existing power relations.
However, as discussed earlier, this assertion can fall short as, more often than not, power asymmetries not only aren't reduced, but they are also reinforced.Therefore, a reimagination of the way in which we study multi-stakeholderism is needed.Interestingly, the term "multistakeholder" first emerged in the 1990s and was officially used in the context of the internet with the establishment of the Working Group on Internet Governance (WGIG) (Hofmann, 2020, p. 256;Palladino & Santaniello, 2021).In any case, as Carr acutely put it, "[the] more we understand about the opportunities and weaknesses of governance models for the internet (or anything else) the better equipped we are to effectively refine and amend those practices, functions and roles that comprise it" (Carr, 2015, p. 643).
So, to study platform governance and, consequently, platform regulation, we ought first to define two core elements that are often at the heart of regulatory frameworks: legitimacy and accountability (Carr, 2015, p. 142).By assessing a governance regime's legitimacy and accountability, along with its constituents' efforts to reify these two fundamental elements, we can infer critical results of that regime's status quo and power relations.
Accountability here is defined as "a particular type of relationship between different actors in which one gives account and another has the power or authority to impose consequences as a result" (ibid, p. 150).However, Black purports that it is increasingly difficult to define who is to be held accountable at a given point in time, precisely due to the increased fragmentation of power (Black, 2008, p. 139).Black structures her argumentation in regard to the regime's accountability around a trilemma; if something goes wrong, who do we hold to account: a single regulator ("one for all"), each decentralised regulator ("all for one") or each actor individually ("each for itself"; Black, 2008, p. 143).Her position is somewhat of a hybrid, arguing that: "in order to assess the accountability of a regulatory regime […] the focus has to be on holding the outcomes of a regime as a whole accountable" (ibid, p. 157).
In other words, within a polycentric regime, we should be able to hold to account both each actor individually, as well as the regime collectively, in order to assess the effectiveness of regulation -or its lack thereof.Black's approach, then, shows us how to better understand power relations among stakeholders, along with their "institutional embeddedness" (ibid, p. 157).This is made possible by homing in on accountability and legitimacy claims made to regulators, as well as the way in which they were responded to, so as to unearth the state of governance in an ecosystem.
Additionally, legitimacy is defined as a social construct, providing an actor with "social credibility and acceptability" (ibid, p. 144).Santaniello and Palladino offer a valuable historical overview of the scholarship around legitimacy and, specifically, talk about two perspectives of legitimacy: a normative and a descriptive (Palladino & Santaniello, 2021, p. 31).The former, they argue, effectively looks at an actor's "values and principles," which fuel its "right to rule" (i.e., rule-makers), whereas the latter examines the "audiences and their reasons to believe that an authority is appropriate" (i.e., rule-takers; ibid).Therefore, legitimacy is essentially an expansion or evidence of power and a key to assuming authority in a governance regime.
Provided that the internet, as we'll see in more detail later, is inherently tied to the concept of multi-stakeholderism, gauging legitimacy, as with accountability, is tremendously difficult.
There is no single one authority that rules the internet.As a result, many scholars have argued that legitimacy in these environments is primarily related to the participation of a plethora of actors (Flew et al., 2019;Haggart & Keller, 2021;Palladino & Santaniello, 2021, p. 32).Consequently, a governance regime's legitimacy is depended on its openness and inclusiveness, so that "all the categories of actors affected by a particular issue were involved in the decision-making process" (Palladino & Santaniello, 2021, p. 33).
As hinted in the introduction, Carr is one of the most critical voices in relevant literature concerning multi-stakeholderism.She essentially criticises what could be called a Habermasian obsession with normality based on rationality and consensus (Cammaerts & Mansell, 2019;Davis, 2020).She criticises normative claims of "what the Internet 'should be'" (Carr, 2015, p. 642) for concealing their own agenda behind "widely resonant norms like 'privacy', 'freedom', 'democracy'" (ibid).
In addition, she has also criticised the lack of critical analysis of "multi-stakeholderism," which she believes has "become almost synonymous with global Internet governance" (ibid, p. 641).
Of course, this does not condemn said notions but the way in which they are framed by specific stakeholders.Ultimately, Carr suggests that this normative interpretation leaves too little space for the expression of alternative views, as they are quickly shunned as opposition to those norms (ibid).She believes that the polycentric model has been so institutionally embedded, that it almost feels shielded by terms with "a strong normative component" such as "democracy promotion" or "Internet freedom" (ibid).
This theoretical approach comes with its own restrictions and biases.Carr's take on the internet as "a mechanism for the projection of power" (ibid, p. 643) feels like a one-dimensional bashing on United States' global interests in a post-Snowden world (ibid, p. 656).However, this should not reduce the argumentative power of her claim that, while the polycentric regime has been beneficial to the internet's growth (ibid, p. 649), it has also been reinforcing and privileging existing power relations despite an ostensible decentralisation of power.As a result, she feels that there has not been enough space for critical voices to be heard, going as far as to suggest that "multi-stakeholderism [has] become a 'rhetorical exercise aimed at neutralising criticism' rather than a truly unique and participatory mechanism for governing a global resource" (ibid, p. 642).
Furthermore, she identifies three major stakeholders within this regime: government, private sector, and civil society.There seems to be a recurring triadic model within regulation and governance studies; Abbott and Snidal have named it the "governance triangle" (2009), which acts as a "heuristic device to structure analysis of widely varying forms of governance" (ibid, p. 52).According to the authors, this triangle consists of various zones, depending on the number of stakeholders involved in the deliberations, and each zone has a unique or mixed regulatory framework.Similarly, they also group actors in the same fashion as mentioned earlier: states, firms, and nongovernmental organisations (NGOs).
However, we would be remiss not to highlight the consequences of discussing governance structures that refer only to these three actors: it normalises and reinforces a governance imaginary, where outsiders are excluded of the balance and, thus, risks replicating power imbalances and a quasi-elitist power structure.Additionally, the dynamics produced among these actors are contentious, which the authors often describe as "[a] transnational arena" or "bargaining game" (Abbott & Snidal, 2009, p. 48), painting a picture of struggle for domination.Again, in a more Habermasian interpretation, the idealised exchange of rational arguments that, inevitably, will lead to a logical consensus (Habermas, 1992), polycentric contention is framed as benign, constructing consensus, legitimacy (Black, 2008) and fairness.
Yet, Carr argues that such an interpretation neutralises attempts to further politicise the discussion in regard to polycentricity, even if "[it celebrates] the inherently conflictual nature of 'the political'" (Cammaerts & Mansell, 2019, p. 5).The primary reason for this critique is that there are deep asymmetries in the relations that shape multi-stakeholderism and, as such, there cannot exist a fair exchange of ideas.Similarly, Cammaerts and Mansell call for a "radical turn" to pluralism, one that will have the "generative discursive power to render visible asymmetries and biases" of governance structures and, specifically, platform governance (ibid, p. 15).Following suit, this article argues that, on the one hand, we ought to further theorise about multi-stakeholderism instead of taking its dominance for granted and, on the other, that we have to expand our analytical and conceptual models of governance to account for these asymmetries and biases.

Internet governance
The term "internet governance" dates back to the years after the commercial internet's birth, circa mid 1990s; as Brousseau and Marzouki note, one of the earliest uses of internet governance, "as a tentative political construct" (2012, p. 2), was observed in the 1998 International Telecommunication conference.The reason why the authors label it as a political construct is because, up until that point, the term "internet governance," was mostly related to technical issues of the internet, albeit a not well-known one.It was during that time that a specific socio-political agenda was also identified, along with its surrounding stakeholders (Brousseau et al., 2012, p. 4).
Certainly, even within those fora, actors could not entirely agree on the exact nature of participating stakeholders.
Brousseau and Marzouki paint a picture of a dichotomy between the "technical community," who were defensive of the internet's principles and values that would be ensured by self-regulating institutions and the "civil society," that identified social actors and "commonly defined rules" outside the strict "Internet community" as crucial (ibid).
A few years later, in 2006, the United Nations (UN) founded the Internet Governance Forum (IGF).This marked a new era for internet researchers and, largely, the internet's modus operandi (Hofmann et al., 2016, p. 3).The IGF provided us with the first formal definition of internet governance: "Internet governance is the development and application by Governments, the private sector and civil society, in their respective roles, of shared principles, norms, rules, decision-making procedures and programmes that shape the evolution and use of the Internet."This multi-stakeholder framing has truly been the cornerstone of internet research ever since.It should be noted, though, that this paper does not confine the framing of internet governance to the infrastructural or computational aspect of the internet (ten Oever, 2020, p. 27) but expands it to account for the broader stakes that are at play, like the internet's "private ordering" (DeNardis, 2010).As a result, we are mainly interested in exploring the "manifestations of power and political values" (Hofmann et al., 2016, p. 4) of participating actors colliding one with another, co-shaping governance.

Platform governance
More recently, a discussion concerning a new chapter in the multi-stakeholder internet governance model has emerged, that of that of online content regulation (Douek, 2021) within what some have named the "platform governance" (Gorwa, 2019b;Helberger, 2020).A satisfactory definition of platform governance is given by Gorwa as "an approach necessitating an understanding of technical systems (platforms) and an appreciation for the inherently global arena within which these platform companies function" (Gorwa, 2019b, p. 5).So, platform governance entails the study of governance of platforms (i.e., how platforms participate in multi-stakeholder governance structures and how regulation is developed by these structures and applied to platforms), as well as by platforms (i.e., how platforms themselves govern their spaces through self-regulating mechanisms like Community Guidelines).
However, this definition principally addresses the so-called "Big Tech" platform companies (also called GAFAM -Google, Amazon, Facebook, Apple, Microsoft), perpetuating thus a narrow understanding of the modern internet as a space occupied by a handful of oligopolistic firms, which leaves little space to "reimagine the internet" and reinforces the idea that recent regulation is primarily shaped around "Big Tech" companies, which replicates existing power asymmetries (Carr, 2015).Even though this may very well be true, we ought to be critical of the rhetorical vehicles we choose to build our conceptual work.As a result, we should approach platform governance as distinct from the broader internet governance structure or, perhaps, as a sub-field; it is important not to conflate the internet with private platforms, as that would narrow our perspective in a rather platform deterministic fashion (Caplan et al., 2020).
Nevertheless, platform governance holds significant value both on a conceptual and on a practical level: the former because as a means to think of the ways in which stakeholders pertaining to private platform companies participate in shaping governance and regulation, while the latter to gauge and study the various agreements or collaborations forged and shaped among stakeholders.In that sense, platform governance helps us to demarcate the field, as well as the object of inquiry and, thus, serves as a useful analytical lens to study governance structures that involve platforms.
Furthermore, the present platform governance status quo seems to be shifting away from self-regulatory frameworks to complicated collaborative ones (Gorwa, 2019b;Helberger, 2020).We reckon that the main reason behind this change, is the desire of private actors with strong "opinion power" (Helberger, 2020) to ensure public legitimacy and fend off public intervention, thus, ensuring self-governance, that is the ability to function independently of public audit and accountability.Moreover, as Evelyn Douek sharply notes, "platforms […] [play] catch-up to societal demands for more responsible content moderation through self-regulatory innovations and reforms" (2021, p. 4; emphasis added).
For instance, when Facebook publishes guidelines on online content regulation, this should be seen as a move to formalise their content moderation processes by welcoming collaborations with other stakeholders and, thus, mitigating part of their responsibilities.However, a problem that quickly arises with this approach, and which Natali Helberger hints at with the "opinion power" concept (2020), is that it obscures or, at least, downplays the governance conflicts.Where internet governance was imagined to be a self-governed and self-regulated space, platform governance is imagined as a space of co-governance and co-regulation.Inviting co-governance and, consequently, co-regulation is, of course, not reproachable, quite the contrary; Douek believes that public regulation can make systems of content regulation "more accountable and credible" (2021, p. 59).Still, we should see such invitations as part of their communication strategies aimed at building legitimacy and affecting accountability (Black, 2008, p. 151).
An operational framework to study platform governance Circling back to the conceptual merits of platform governance, Gorwa, following the political science tradition, has suggested to study platform stakeholders' relations through their outcomes (i.e., regulations or agreements).To that end, he suggests exploring these products using the "platform governance triangle" (Gorwa, 2019a), which is a re-contextualisation of Abbott and Snidal's governance triangle, in which each corner represents a stakeholder: NGO, state, and firm (Figure 1).Gorwa also offers a rather comprehensive view of different platform regulations that indicate governance relationships among stakeholders.
So, while the governance triangle serves as a valuable conceptual model of pinpointing stakeholders, it restrains us from having a more nuanced picture.However, it should be mentioned that Robert Gorwa's re-framing of the triangle to illustrate the European content regulation landscape (Gorwa, 2019a, p. 7), adds some nuance concerning the stakeholders' relations concerning online platforms' regulation.Nonetheless, we argue that there are some stakeholders that are difficult to group together and that clustering them solely based on a 'spatial' manner (i.e., where they stand in the governance triangle) does not do justice to their unique nature.
It is becoming increasingly difficult to distinguish actors' interests in governance deliberations; for instance, private actors, ranging from news media organisations to platforms, have competing interests that are difficult to account for with the governance triangle model.Moreover, new stakeholders, like users or citizens, have been playing an important role in these deliberations.For instance, not only have they been participating in regulatory consultations (e.g., Commission's Public Consultations) but they have also been involved in communityled platform governance structures; for example, Facebook Oversight Board has been receiving comments from the broader public to inform their decision-making process.
As a result, although the "governance triangle" lens is indeed useful in identifying the overarching actors at play (public, private, and NGOs), it would benefit from a reiteration.As governance regimes are becoming increasingly complex, so does the need for a more nuanced approach to identifying participating stakeholders.For instance, Flew et al., criticise Gorwa's triangle as not allowing us to conceive "inter-capitalist interests" (Flew et al., 2021, p. 129), following the recent Australian "Mandatory News Media Bargaining Code," that would require Facebook and Google "to collectively negotiate with commercial news publishers for payment for the use of the news content they carry" (ibid, p. 128).
This is why, this paper wishes to conclude this literature review by proposing an expansion of that triangle to account for "the shifting allegiances across categories and also the heterogeneity of interests within them" (Flew et al., 2021, p. 134).In particular, it suggests to start studying clusters of stakeholders through their relations (procedural approach to governance) and not only based on their institutional profile (normative/ outcomes-oriented approach).
As a result, we propose that a more suitable concept would be that of "governance clusters," (Figure 2) which are comprised of actors sharing some common fundamental principles and interests.The governance clusters presented in the formulation below is merely an operationalisation of the governance triangle to account for subtle nuances that exist within modern governance structures.Therefore, we do not propose to abolish the traditional model of triangle but rather elasticise it, so as to accommodate more complicated arrangements.Also, this figure illustrates a platform governance structure within the context of the news industry; so, other instances of platform governance are not accounted for here but we believe that could be explored using the operationalisation proposed here.It should also be noted that the clusters' size does not represent their importance or power; asymmetries and biases exist in this illustration as well.
Moreover, it takes into consideration the bifold quality of governance as structure and governance as power that explained earlier: that is, it allows us to map relevant stakeholders that were not visible in the triadic model, as well as to analyse the power relations of stakeholders -and their asymmetries.Consequently, it considers both the organisational or regulatory arrangements among stakeholders and the procedures that underpin these arrangements.Following the critique of Flew et al., we'd like now to suggest how the operationalisation of the platform governance triangle proposed here could be used to study governance deliberations around Australia's new regulatory framework, News Media Bargaining Code: (i) public authorities, (ii) digital platforms, (iii) civil society organisations, (iv) legacy firms, (v) industry organisations and, last, (vi) citizens/users.We'd like to briefly expand on each stakeholder to avoid misconceptions: i.Digital Platforms: there is a whole scholarly debate on the elusive definition of platforms.A satisfactory definition is that: "An online 'platform' is a programmable digital architecture designed to organise interactions between users -not just end users but also corporate entities and public bodies" (van Dijck et al., 2018).This paper is first and foremost interested in social infomediaries (Smyrnaios & Rebillard, 2019) and social media platforms that host, curate and disseminate content online (Gillespie, 2018) and not other types of platforms, like data brokers or advertisers.
ii. Public authorities: refer to public actors, like governmental, national or supranational organisations, who are either elected or appointed by elected officials, with the authority to pass regulations, policies or legislation.
iii.Civil Society Organisations: Tjahja et al., (2021) have provided us with an illuminating discussion and typology of what exactly civil society means in a modern multi-stakeholder governance network, namely that of the Internet Governance Forum, highlighting the contested nature of the concept.One of the most important elements is their framing of civil society organisations as "intermediaries" advocating for their "communities' interests" (Tjahja et al., 2021, p. 3).Subsequently, in this operationalisation, civil society mainly refers to organisations that engage in advocating for citizens and users' digital rights, trying to hold to account both public authorities and social media.
iv. Legacy firms: refers primarily to news organisations that play an active role in shaping the regulatory agenda of online content.Platforms might argue that news' revenue is "minimal," but their role in platform governance is crucial (Napoli, 2015;Smyrnaios & Rebillard, 2019) because, among others, they make platforms nodes of public interest, where information is centralised (Helmond, 2015).Additionally, ever since the consolidation of online platforms, news organisations have been trying to stay afloat and retain or increase their visibility.To that end, many news organisations have struck different deals with online platforms, while others have been pushing their associations to either collectively negotiate with platforms or push public authorities to intervene.
v. Citizens/users: these are theoretically represented in the governance deliberations by civil society organisations (Regilme, 2018).yet, we believe that this could be more of a hypothesis rather than an axiom.In other words, representation in modern networked governance could be questionable and, thus, public consensus could be nothing more than wishful thinking (Flyvbjerg, 1998, pp. 214, 229), What is more, in modern deliberations, we see citizens participating individually and directly: for instance, the European Commission has put public, open consultations in place, where every stakeholder can participate to help officials draft regulations.Finally, there exist platforms, like Wikipedia or Reddit, that rely on their users to moderate their content.Finally, social media influencers could also be a form of opinion makers, as people making a living off monetising their popularity on social media, which is integral to platforms' economy; yet, their role as governance stakeholders, along with the way that platforms treat them, has been understudied (Caplan & Gillespie, 2020) and underestimated by other stakeholders.So, in such complex governance arrangements, we ought to take into account citizens, as well as users distinctly.
vi.Industry Organisations: we primarily refer to industry associations, think tanks or lobby groups, that work to their respective industry's interests.We propose to look at them separately from civil society organisations because they do not work for the public interest but, rather, their private interest.Finally, we call them opinion shapers because they can communicate their industry's interests to all other stakeholders, either independently or not, and can, thus, shape the governance stakeholders' opinion on issues of regulatory deliberation.
So, when the Australian government following the report of the Australian Competition and Consumer Commission (ACCC), passed a bill that would force leading platforms Google and Facebook to negotiate with news publishers for news content hosted by their services, it was seen as an intervention to the platform governance's status quo.This is why the platforms' reactions, especially from Facebook, was so strong, which resulted in blocking even governmental agencies that were informing the public regarding the development of the coronavirus pandemic and, thus, involving citizens to the governance deliberations, even if indirectly.This could be why the Australian government agreed to some amendments demanded by platforms.
Moreover, civil society groups and opinion shapers participated in the consultations held by the ACCC (Flew et al., 2021), albeit the former in a much limited manner (ibid, p. 128).It worth merits that the stakeholder analysis proposed by Flew & Lim (2019, pp.541-574) suits great the operationalisation proposed here to study governance deliberations and power relations.Last, news media, apart from being directly involved in the deliberations, used their own means to sway public discourse, while large legacy media organisations were negotiating other financial deals directly with platforms.Finally, as mentioned earlier, the proposed operationalisation allows to account for inter-stakeholder competing interests: for instance, smaller Australian news media organisations voiced their concerns over the Code's advantageous position that it gives to large corporate publishers at the expense of smaller players.Concluding, this short example sought to emphasise how increasingly complicated governance structures are becoming, as well as to illustrate how, by expanding our understanding of stakeholders, we can better study governance procedures.

Conclusion
This paper sought out to introduce a comprehensive overview of literature concerning the concepts of regulation and governance, as well as to connect them to the scholarship engaging with the study of platform regulation and platform governance.Specifically, the paper introduced the various approaches to defining regulation and governance in tandem with multistakeholderism, and then proceeded with connecting said notions, primarily, with two research fields: internet governance and platform governance.This was chosen so as to emphasise the importance of differentiating between the two fields in an attempt to avoid conflating the internet with digital platforms.First, we defined regulation as a governance mechanism, involving the intentional -direct or indirect -intervention in the activities of a stakeholder, with the intention to change that stakeholder's modus operandi, which, in turn, may have unpredictable -yet measurable -consequences to the governance regime Then, we defined governance as a complex networked structure that accommodates different stakeholders that are connected and coordinated through various types of regulations, norms and practices; what is more, we also explained how governance holds a bifold analytical quality that allows for the exploration of a governance regime's structure and the power relations that underpin it.
Furthermore, we made a brief historical overview of how the concept of internet governance was developed inherently tied to the notion of multi-stakeholderism and how it evolved over time to an important analytical lens to study the internet's political stakes.The key takeaway point is that multistakeholderism has monopolised scholars and policymakers so much so that any critique towards the model is perceived as an attack to democracy or plurality (Carr, 2015), which has led to the weakening of critical analyses and has perpetuated power asymmetries.
Last, we discussed the field of platform governance, which allows us to study the governance of platforms and by platforms within multi-stakeholder governance structures; we acknowledged the analytical value of platform governance as a way of studying ubiquitous digital platforms but also highlighted the need to avoid conflating them with the internet, especially the very large online platforms that have come to dominate the modern public sphere.As a result, we argued that the platform governance, both as a field of study and as a governance structure, poses an existential risk to the internet governance, precisely because of the domination of private platforms both as actors and as actants (i.e., field of scholar study and centre of policy-making).
Moreover, we proposed to adjust the platform governance triangle, that was proposed by Gorwa (2019b) and built upon the work of Abbott & Snidal (2009), in order to account for the increasingly complicated platform governance structures.
We suggested an operational framework designed to study the recent Australia's New Media Bargaining Code focusing on invisible clusters of governance stakeholders.We feel that this adjustment is necessary to: a) consider actors that do not fall in traditional categories (i.e., state, firm, NGO) due to their hybridity (e.g., Wikimedia is such an example), b) consider inter-stakeholder competing interests, and c) consider the importance of citizens and users in modern networked structures.
Future research should look into studying the new governance clusters in concert to developments in the online content regulation front.For instance, citizens' contributions to governance deliberations through the European Commission's public consultations or academics' participation in panels aimed at designing or assessing regulatory frameworks.In addition, much more detailed work is needed to theoretically underpin the emerging field of platform governance, while a systematic literature review could certainly help us understand when and how the term gained traction.As hinted throughout the paper, platform governance enables us to explore the implications of online content regulation and the governance deliberations to the public discourse and the public sphere in general (Papacharissi, 2002;Salikov, 2018).Yet, we ought to be aware of its limitations and risks.We believe that there is a timely need to adjust the conceptual tools we have in such a way that avoids perpetuating power imbalances and accounts for the complex multi-stakeholder governance structures; this is crucial to work toward a much-needed reimagination of governance that reinforces polycentricity and decentralisation. 1.
How the conceptualisation of regulation and governance informs the definition of platform governance.It would be important to be a bit more explicit, and to be sure that the critical discussion of those two concepts arrive at conclusions that are clearly used / discarded when defining platform governance.In this way, the reader will certainly find the flux of ideas much easier to grasp.

2.
Materiality.Platforms are new in various ways but, mostly, because they are materially organised around datafication.This is not made as explicit as it could --and arguably should --be.Bringing datafication to the table can make the theorisation work more challenging, but also more rewarding.

3.
Lastly, I encourage the author to keep refining these ideas with a view to not only "review" the literature but also produce his own concepts --something that is already partially done here, clearly.

4.
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Media, power, ethics, datafication, democracy, platforms I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard.

Terry Flew
Department of Media and Communication, The University of Sydney, Sydney, Australia This paper makes two very important contributions to current debates about Internet regulation and platform governance.The first is that it helps to clarify the important conceptual distinction between regulation and governance.There is a tendency in the literature to assume that we have moved from regulation to governance based on complexity, actor-network theory etc.But what is apparent is that the regulation literature can flexibly incorporate a wide range of practices, many of which are considered to be governance e.g.'nudging'.The point that 'these two approaches are not oppositional one to another but rather highlight different aspects of governance' is well made.
One point that could have been picked up is the inevitability of governance for platforms.By the nature of their operations in multi-sided markets, they have to be engaged in governance, and also to work with multiple stakeholders simultaneously.In that way, governance is part of the business model of platform businesses.It is what is new and distinctive that needs to be discussed, much of which sits within the sphere of regulation.
I was broadly sympathetic to the critiques of multi-stakeholder governance, but felt that they need to be differently expressed.There are two different critiques being developed here: one that it is too much grounded in a 'Habermasian' rationalism, and the other is that it disguises the extent to which power relations really construct global Internet governance.If one goes back to early debates about multi-stakeholder governance, it is arguable that 'Habermasian' ideas had much influence at all.In many respects, the key motivator was to keep nation state governments at arm's length.In that respect, enlisting NGOs has proven to be of ongoing utility, whether or not they actually have power in the framework.
The other key contribution was to argue that we need to move beyond a 'triadic' model for platform governance.The ways in which other players were included was particularly important e.g.bringing in other media companies as agents in their own right, and regulators as potentially having agency in shaping the debates.As the earlier review did, I wondered about the citizens/users category.Are these in effect de facto civil society organisations?The literature on political agency indicates that a political agent needs to be represented, and have a capacity to turn such representation into action e.g.'the working class' is not a political agent, but trade unions that purport to represent them are.
I would also agree that governance needs to be extended beyond the content area.There is no discussion here of competition policy, for instance, but it is clearly at the forefront of contemporary debates about Internet regulation, as seen with the antitrust discussion in the US.
There are also growing debates around data governance and AI, which include platform companies, but go beyond platforms.Reviewer Expertise: Digital platforms; platform governance; Internet regulation; media policy I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard.

Is
crucial; commercial internet could not have been realised without the de-regulation period that established governance & multi-stakeholderism.In that sense, regulation could be seen as a way of re-affirming state power.
Concerning your other point on civil society but also citizens/users, what I tried to say with my paper is that: although NGOs were included in multi-stakeholder governance structures they did not always serve the public interest (representing citizens).This is why I tried to make the distinction between civil society organisations, that often are characterised advocates or activists nowadays) and other NGOs, like industry associations.What is more, I also tried to emphasise the distinct role that citizens/users play in modern governance as stakeholders who may have direct (or, at least, indirect) impact on deliberations (e.g. through participating in public consultations or through participating in community-led platforms or, even, through flagging content on platforms).
○ Last, your point on studying governance beyond content regulation/governance is indeed valid and one that needs to be further analysed.I did not wish to cover data or competition governance in this paper, but it is very timely do so, given the upcoming regulations (e.g. the Data Governance Act of the Commission).I also think that we could expand this to cover AI as well.It is just that I tried to offer a broader lens to study governance that could be then operationalised to study specific fields like the aforementioned.
Overall, this is a very welcomed effort as the field of platform governance has not been sufficiently theorised.However, the manuscript must undergo major revisions before a decision on its academic merit (and, thus, indexing) can be made.
The perhaps primary problem is that the MS does not deliver what it promises.The MS's plan appears straightforward: to discuss and define "regulation", "governance" and their linkages, and then "connect" these two ideas to debates on platform governance (p.9).However, it does not really offer a convincing conceptualisation of neither regulation nor governance.Regulation, it is said on page 5, is "a governance mechanism, involving the intentional -direct or indirectintervention in the activities of a stakeholder, with the intention to change that stakeholder's modus operandi, which consequently has unpredictable consequences to the rest of the governance environment" (p.9).So, the definition of regulation hinges on that of governance.The problem is that MS's view on governance remains elusive.On page 4, it says that it understands governance as "that politically charged notion that signifies 'to govern'", a literalistic interpretation that does not amount to a scholarly definition.Then, without reviewing other definitions, it appears to side with the Foucauldian definition of "governamentality".This is an issue in itself since governamentality is a much broader theory, that regards the complex interactions between power and freedom (something the MS does not note).In fact, I could not find a moment in which the actual differences between "regulation" and "governance" are specified.On page 6, it is said that "we can imagine these multi-stakeholder environments 1 as contentious fora, where power relations among actors surface the interdependence of one another, while shaping the governing status quo.This consolidates the difference between regulation and governance, as well as their strong connection" -but I fail to see how this clarifies anything.What "consolidates" the difference?Is "consolidate" the right verb here?Where is "regulation" and "governance" in these "environments"?I sense that the MS wants to argue that "governance" means power, broadly understood, and "regulation" would be a much narrower form of power --but this is far from clear.Since "regulation" and "governance" are not properly defined, the MS offers no clear articulation between these concepts and platform governance.There are hints that current studies of platform governance are not critical enough and may suffer from similar simplifications to debates on multistakeholderism, topics that are debated in the MS.Yet, one would expect a much clearer demonstration of how the MS's discussion of those two concepts can inform and illuminate the definition of platform governance offered in the penultimate section -to which I turn now.
Leaving aside the said lack of clear connection between the three concepts, the MS falls short of a proper conceptualization of platform governance -which is the MS's other major issue.It is unclear why the MS assumes that platform governance can be restricted to "online content regulation" since platform governance involves many more areas (e.g.monopolistic practices, privacy/surveillance etc).Then, it proposes that platform governance should go beyond the "triangle" of states, private firms and NGOs, and lists six "clusters" of stakeholders.Yet, one could easily argue that, if by NGO one means any non-governmental organisation, five of those six "clusters" can be easily framed with the same "triangle": digital platforms are private firms, "public authorities" are the state, and NGOs, news media, and "opinion makers" such as academics are representatives of non-governmental organisations."Citizens" might indeed be a new category but we must remember that in most models citizens are said to be represented by both states and NGOs.Furthermore, even if we assume that there is analytical value in breaking the triangle into "clusters" (something that I am sympathetic to but the MS does not demonstrate), one could argue  This article provides a concise and well-organized literature review related to the concepts of regulation and governance that inform and guide ongoing deliberations around the notion of platform governance and, in particular, the realm of online content regulation that has become an increasingly prominent component of contemporary platform governance deliberations.
One comment I would make in regards to this piece's focus on online content regulation within the platform governance context is just to emphasize that platform governance is a more expansive concept that extends beyond the realm of content regulation.Indeed, what has been so striking over the past five years or so is to observe how the focus of platform governance debates and deliberations has shifted so dramatically, from what once was an almost exclusive focus on issues related to platforms' handling of user data to the much more prominent focus on content regulation that we see today.
This piece's efforts to theoretically unpack the concepts of regulation and governance are a valuable exercise that will benefit scholars who are new to the platform governance field; it also serves as a useful reference point for scholars who have been working in this area for some time.
And, of course, while there are practical limits to how much literature can be synthesized in an effort such as this to provide a concise overview and critical analysis, I think readers of this piece might find Manuel Puppis' work on media governance 1 a useful resource to consider as well, given that it is, to some degree, a precursor to the type of analysis presented here (though with a different contextual focus).
I think the points that the author makes about the need to unpack the notions of regulation and governance, and the need to study the space between regulation and governance, are particularly important, as there does appear to be the occasional tendency amongst scholars to use the two terms without the necessary precision.
Along similar lines I appreciate the effort to contextualize platform governance within the more established realm of Internet governance.However, I don't know if I would want to see platform governance conceptualized, as the author suggests, as "not so much as a subfield of Internet governance, but rather its evolution."This is a statement that, for me, evokes the widely criticized tendency by Facebook's Mark Zuckerberg, to argue that we need new rules for the Internet -with the critique arising from the fact that many of the problems requiring attention have emerged specifically from the digital platforms such as Facebook that make use of the Internet, but that do not comprise the Internet.This strikes me as an important distinction to maintain, especially when we talk about content regulation, given that content regulation debates tend to ignore the fact that content removed from, or restricted on, social media platforms can still exist elsewhere online.So, my point here is that I am nervous about any analytical approach that appears to move us in the direction of conflating the Internet with digital platforms, regardless of how much these digital platforms have come to dominate the Internet at this point.
The author's efforts to lay out the key stakeholder groups involved in platform governance are particularly useful.However, I would like to explore a bit the "citizen" category as described in the text and reflected in Figure 1.Specifically, I'm interested in whether there is a meaningful distinction that needs to be made here between citizens and users.As laid out in the text, citizens participate in the governance process through being represented by civil society organizations and through direct participation in regulatory proceedings.What seems to be left out in this framework are the ways in which digital platforms occasionally rely upon their user base to assist in the governance process, in ways such as relying upon users to flag problematic content, or drawing upon survey or user behavior data to inform or justify shifts in organizational policy, algorithmic design, etc.Within these contexts we are talking about a narrower subset of the populace than citizens (which itself raises interesting implications about the distribution of platform governance influence within the population).
Similarly, I think that there is an additional dimension to the role of the news media as a stakeholder in the dynamics of platform governance that merits consideration.Specifically, I think it is important to acknowledge the increasingly influential role that the news media play as, essentially, platforms' fourth estate -that is, as key watchdogs of the digital platforms.It is investigative reporting and data journalism that have made public many instances of platform misbehavior, and abuses of the platforms by third parties.This has led some observers to describe the news media as a key content moderator for digital platforms.And there is certainly evidence that platforms have changed their behaviors in response to many of these reports.So I think this aspect of the increasingly complex relationship between digital platforms and the news media merits mention within the context of discussing the news media as a stakeholder in the process of platform governance, particularly given the extent to which platforms are simultaneously becoming an increasingly important source of financial support for news organizations in many national contexts.

Reviewer Report 07
July 2021 https://doi.org/10.21956/openreseurope.14946.r27207© 2021 Flew T. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
the work original in terms of material and argument?Yes Does it sufficiently engage with relevant methodologies and secondary literature on the topic?Yes Is the work clearly and cogently presented?Yes Is the argument persuasive and supported by evidence?Yes If any, are all the source data and materials underlying the results available?No source data required Does the research article contribute to the cultural, historical, social understanding of the field?Yes Competing Interests: No competing interests were disclosed.

©
2021 Napoli P.This is an open access peer review report distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Philip Napoli Sanford School of Public Policy, Duke University, Durham, NC, USA

References 1 .
Puppis M: Media Governance: A New Concept for the Analysis of Media Policy and Regulation.Communication, Culture & Critique.2010; 3 (2): 134-149 Publisher Full Text Is the work original in terms of material and argument?Yes Does it sufficiently engage with relevant methodologies and secondary literature on the topic?Yes Is the work clearly and cogently presented?Yes Is the argument persuasive and supported by evidence?Yes If any, are all the source data and materials underlying the results available?

Does the research article contribute to the cultural, historical, social understanding of the field? Partly Competing Interests:
No competing interests were disclosed.

have read this submission and believe that I have an appropriate level of expertise to state that I do not consider it to be of an acceptable scientific standard, for reasons outlined above.
'd like to thank you for taking the time to review my manuscript in such a detailed manner; I really appreciate it.Although your evaluation of my paper was negative, I have to say that your critique was both fair and constructive.I honestly believe that it has benefited my paper, the PhD that I'm working on, and me as a researcher.I agreed with most of your observations, especially regarding the unclear goal of the paper's initial version and the underdeveloped conceptualisation of platform governance.In the revised version, I have tried to emphasise that this paper's goal is to provide a critical literature review of works that have studied regulation and governance, as well as to propose how we could better study platform governance if we expanded our understanding of current analytical models, like the traditional "governance triangle."I firmly believe and tried to show that governance as a field of inquiry can be beneficial both on a descriptive level (i.e., to identify and map stakeholders) and on a conceptual level (i.e., to theorise about and investigate power relations).I should also point out that I revised the model I proposed in the initial version and decided to re-articulate its purpose.For that reason, I have decided to avoid calling it a "conceptual model" because, as you pointed out, I hadn't made a convincing point of why such a conceptualisation was needed.Instead, in the revised version, I tried to explain what I wanted to argue in the first place: while the governance triangle provides us with an overarching mental model of a governance structure, today's hyper complex structures make it inadequate to study them and, thus, we need to expand it and operationalise it according to the specific field we wish to inquire.Concluding, I have to say that your critique has made a significant impact and has allowed me to grow as a researcher, as this was the first time I submitted a paper for peer-review.