AUTHOR=Hou Dainan , Wang Xin TITLE=How does agricultural insurance influence grain production scale? An income-mediated perspective JOURNAL=Frontiers in Sustainable Food Systems VOLUME=9 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2025.1524874 DOI=10.3389/fsufs.2025.1524874 ISSN=2571-581X