Abstract
This study examines the changes in market demand for wakame seaweed before and after the Great East Japan Earthquake. For this purpose, we use scanner data comprising prices, quantity, brands, countries/places of origin, and product types of wakame for ten regional markets during the period 2005–2014. The Japanese seafood market suffered from the direct and indirect impact of the earthquake in 2011. Serious damage caused by the earthquake and tsunamis would have at least caused significant changes in the demand elasticities for wakame. However, using a linear-approximated almost ideal demand system (LA-AIDS) model, we find that, although disparities exist in the estimated elasticities between the pre- and post-earthquake periods, there is no significant change in the demand for wakame. Moreover, own-price elasticities of Sanriku wakame did not change even after the earthquake, and cross-price elasticities of Sanriku and its rival, Naruto, did not reveal a remarkable structural change from substitution to complementation or vice versa. This study concludes that the damage to the wakame seaweed market in Japan is at least limited.
Similar content being viewed by others
References
Miyata T, Lou X, Onodera M (2008) The competitive power of domestic seafood in a globalized Japanese market: a case of Japanese wakame. J Region Fish 48:1–17
Wakamatsu H, Miyata T (2016) Do radioactive spills from the Fukushima disaster have any influence on the Japanese seafood market? Mar Resour Econ 31:27–45
Deaton A, Muellbauer J (1980) An almost ideal demand system. Am Econ Rev 312–326
Ariji M (2013) A quantitative anlaysis of the factors involved in the decreasing consumption of marine products in Japan: a household analysis by LA/AIDS (in Japanese). Nippon Suisan Gakkaishi 79:711–717
Green R, Alston JM (1990) Elasticities in AIDS models. Am J Agric Econ 72:442–445
Moro D, Sckokai P (2000) Heterogeneous preferences in household food consumption in Italy. Eur Rev Agric Econ 27:305–323
Tonsor GT, Marsh TL (2007) Comparing heterogeneous consumption in US and Japanese meat and fish demand. Agric Econ 37:81–91
Xie J, Myrland Ø (2011) Consistent aggregation in fish demand: a study of French salmon demand. Mar Resour Econ 26:267–280
Hayes DJ, Wahl TI, Williams GW (1990) Testing restrictions on a model of Japanese meat demand. Am J Agric Econ 72:556–566
Yoshihara K (1969) Demand functions: an application to the Japanese expenditure pattern. Econometrica: J Econ Soc 257–274
Eales J, Wessells CR (1999) Testing separability of Japanese demand for meat and fish within differential demand systems. J Agric Resour Econ 24:114–126
Ariji M (2013) A quantitative analysis of the factors involved in the decreasing consumption of marine products in Japan—a household analysis by LA/AIDS (Japanese). Nippon Suisan Gakkaishi 79:711–717
Nichell S (1985) Error correction, partial adjustment and all that: an expository note. Oxf Bull Econ Stat 47:119–129
Baruch S, Kannai Y (2001) Inferior goods, Giffen goods, and Shochu. Economics Essays. Springer, pp 9–17
Wakamatsu H, Miyata T (2015) Purchasing factors of wakame consumers: using an auction experiment (in Japanese). Nihon Suisan Gakkaishi 81:283–289
Acknowledgments
We appreciate that this study is funded mainly by the Agriculture, Forestry, and Fisheries Council as part of the “Development research of sustainable production system in fisheries and aquacultures” project, as well as by JSPS Kakenhi Grant Number 26850145.
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Wakamatsu, H., Miyata, T. Examining the Japanese seaweed market before and after the earthquake using a partial adjustment model of LA-AIDS. Fish Sci 82, 549–559 (2016). https://doi.org/10.1007/s12562-016-0985-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12562-016-0985-9