基于39个主要国家的截面数据,选取反映资源、经济、制度、人口四个因素的11个变量,采用逐步回归分析方法对影响虚拟水进口量的因素进行实证分析。回归结果表明,国际储备、人均国内生产总值、耕地面积、粮食单产4个变量对虚拟水进口量具有显著影响且均具有正向效应。 Based on the cross-sectional data of 39 major countries, eleven variables reflecting the four factors of resources, economy, institution and population were selected, and stepwise regression analysis was used to empirically analyze the factors affecting the import volume of virtual water. The regression results show that the four variables of international reserves, per capita GDP, cultivated land area and grain yield have a significant effect on the import of virtual water and all have a positive effect.