This article was inadvertently published twice Journal of Statistical Physics in this journal. The following should be considered the version of record and used for citation purposes: “Michail Loulakis, On the Symmetry of the Diffusion Coefficient in Asymmetric Simple Exclusion, Journal of Statistical Physics, Volume 119, Issue 3/4, pages 853–860, https://doi.org/10.1007/s10955-005-3018-0”. The duplicate “Michail Loulakis, On the Symmetry of the Diffusion Coefficient in Asymmetric Simple Exclusion, Journal of Statistical Physics, Volume 190, Issue Supplement 1, pages 1–8, https://doi.org/10.1007/s10955-004-3018-5” should be ignored. Bruno Nachtergaele, Yariv Kafri, Giulio Biroli, Abhishek Dhar, Alessandro Giuliani, Hal Tasaki | Springer Nature apologizes to the readers of the journal for not detecting the duplication during the publication process.