AUTHOR=Wenjun Miao , Zenghui Huo , Fuqiao Chen , Mei Zhang TITLE=The impact mechanism of MRLs standards harmonization on China’s tea export trade—evidence from RCEP countries JOURNAL=Frontiers in Sustainable Food Systems VOLUME=Volume 9 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2025.1504001 DOI=10.3389/fsufs.2025.1504001 ISSN=2571-581X