Substitute and complement relations among various fish species in the Japanese market: implications for fishery resource management |
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| Authors: | Yutaro Sakai Nobuyuki Yagi Masahiko Ariji Atsushi Takahara Hisashi Kurokura |
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| Institution: | (1) Graduate School of Agricultural Life Science, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan;(2) Amita Institute for Sustainable Economies, Kamigyo, Kyoto-shi, Kyoto 602-8024, Japan |
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| Abstract: | A demand system analysis was conducted to examine the substitute relationships between tuna and skipjack tuna in the Japanese
market. Data from the Annual Report on Family Income and Expenditure Survey from 1965 to 2006 were used for the analysis using
the almost ideal demand system (AIDS). Results suggest that skipjack tuna can be a strong substitute for tuna, while other
fish groups are not a clear substitute. Our analysis of substitute relationships among fish species in a market indicates
that this is a factor that should be considered for better fisheries resource management. For instance, even under a situation
where one fish species is underexploited, proper attention to its fishery management is necessary if the fish is a strong
substitute for another popular fish species in the market. |
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