Impact of ASEAN-China free trade area on fishery value chain based on difference-in-difference method

This article screened five main countries of the Association of Southeast Asian Nations (ASEAN) (namely the Philippines, Thailand, Malaysia, Vietnam and Indonesia) as the treatment group, while Norway, Canada, the United States and Japan were set as the control group. Firstly, the entry of a country into the ASEAN-China Free Trade Area (ACFTA) has a significant role in promoting the domestic production of ASEAN countries. Secondly, ACFTA entry does not significantly affect the position of aquatic products of ASEAN countries in the global production chain. Thirdly, from the perspective of domestic food supply of aquatic products, ACFTA has no direct impact on the local demand for aquatic products.