中国大豆进口市场结构变迁原因的HOV分析

Analysis on Reasons of China's Soybean Import Market Structure Changes

过去十多年来，中国大豆进口市场结构发生了显著变化，通过建立HOV模型分析了我国大豆进口市场结构的主要影响因素。结果表明：进口来源国的土地禀赋、劳动力禀赋、资本禀赋、规模经济、运输条件、我国进口市场的分散度和市场需求及第三方市场效应都是影响我国大豆进口格局的主要因素。1986—1997年与1998～2012年两个阶段的HOV模型实证结果进一步表明不同来源国间资源禀赋的相对变化是中国大豆进口市场结构变化的主要原因。

Over the past decade, China＇s soybean import market structure has undergone significant changes. This paper ana-lyzed main factors affecting China＇s soybean import market structure by HOV model. The results show that land endowments, la-bor endowments, capital endowments, economies of scale, transport conditions, China＇s market demand as well as the third mar-ket effect are major factors. Differences on empirical results between 1986-1997 and 1998-2012 further indicate that relative changes on resource endowments among import sources are main reasons for changes on China＇s soybean import market struc-ture.