自上世纪90年代以来,美国、加拿大和墨西哥的农业一体化趋势不断加强。主要表现为:北美区域内的农业贸易大幅度增加,双边贸易集中度指数(BTI)和商品互补性指数(CCI)表明美加墨三国在农业上的相互依赖性和互补性不断加强。在此过程中,北美自由贸易协定(NAFTA),乌拉圭农业协定(URAA起了重要作用。
1990s witnessed the integration of agricultural sectors of Canada, Mexico, and the United States. It manifested as dramatic growth of agricultural trade among the NAFTA countries. Bilateral Trade Intensity Index (BTI), Commodity Complementarities Index (CCI) indicated great interdependency and complementary among the three country. NAFTA and URAA played a key role in the process.