AUTHOR=Zeng Huasheng , Chen Shuyu , Zhang Haoruo , Xu Jinhai TITLE=The effects and mechanisms of deep free trade agreements on agricultural global value chains JOURNAL=Frontiers in Sustainable Food Systems VOLUME=8 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2024.1523091 DOI=10.3389/fsufs.2024.1523091 ISSN=2571-581X