2026-10-15T13:07:29Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34515885 2026-10-14T22:01:29Z category_575 portal_316 item_type_3 month_year_10_2026

Data Sheet 1_Institutional capacity, FTA network breadth, and trade efficiency in China’s aquatic-product imports: evidence from a true random-effects stochastic frontier gravity model.pdf Wei Yang (109917) Kunlin Tang (9374061) Food Packaging, Preservation and Safety aquatic products conditional trade potential free trade agreements FTA networks import trade efficiency institutional opening-up logistics services stochastic frontier gravity model <p>China’s rapidly expanding aquatic-product imports raise an important economic question: how fully do established supplier relationships realize the trade capacity supported by market scale, production capacity, and institutional conditions? Using a balanced panel of 16 major suppliers over 2013–2022, this study estimates a true random-effects stochastic frontier gravity model that separates persistent supplier heterogeneity from time-varying trade inefficiency. The results identify two distinct margins. China’s fishery-sector scale and supplier total aquatic-animal production expand the conditional import frontier, while stronger China-side logistics-service competence and broader supplier external FTA networks are associated with lower trade inefficiency and stronger frontier realization. The FTA-network relationship remains particularly consistent across alternative time controls, LPI annualization, supplier economic and governance controls, and broader PPML samples. Mean JLMS trade efficiency rises from 58.00% in 2013 to 89.21% in 2022. In 2022, observed imports of USD 18.41 billion correspond to a conditional frontier of approximately USD 20.65 billion, leaving a USD 2.24 billion conditional gap concentrated in a small number of large-frontier relationships. An efficiency–frontier matrix further distinguishes core high-realization suppliers, large-frontier relationships with greater room for realization, and efficient smaller suppliers that contribute diversification. These findings show that trade-capacity formation and trade-capacity realization are complementary dimensions of resilient aquatic-food supply chains.</p> 2026-10-14T22:01:29Z Dataset Dataset 10.3389/fsufs.2026.1963840.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Institutional_capacity_FTA_network_breadth_and_trade_efficiency_in_China_s_aquatic-product_imports_evidence_from_a_true_random-effects_stochastic_frontier_gravity_model_pdf/34515885 CC BY 4.0