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前沿 | 复旦经院奚锡灿等在《美国科学院院刊》 (PNAS)上 . . . 复旦经院奚锡灿博士与合作者的论文“Policy Distortions, Farm Size, and the Overuse of Agricultural Chemicals in China”在线发表于6月18日的PNAS杂志（《美国科学院院刊》。 论文指出，我国农业经营规模过小，是造成我国农用化学品过量施用和制约我国农业可持续发展的重要因素。