On Sino-US Comparative Advantage in Exporting Agriculture Product - Contribution and Competitiveness Analysis with Constant Market Share Model

In this article, from the Sino-U.S. comparative perspective, we adopt the model of constant market share to analyze the international competitive factor's contribution to Sino-U.S. agricultural product's export growth from 2002 to 2006, and compare the Sino-U.S. relative variation trend. The result shows: The final competitive effect of China's agricultural export should be positive value, which illuminates the growth of international competitiveness of China's agricultural products has made an active contribution towards agricultural exports; and the final competitive effect of U.S. agricultural export should be negative value, which illuminates the drop of international competitiveness of U.S. agricultural products has brought a negative effect to its agricultural exports.