额外进口的资本密集型商品有效地扩大了该国的资本池，降低了本地的资本回报，也为企业和家庭创造了向国外输出更多资金的激励因素，而实现更大的贸易顺差则是实现这一目标的手段。
The additional imports of capital-intensive goods effectively expand the pool of capital in the country, reducing the domestic returns on capital. This creates an incentive for firms and households to send more capital abroad, and running a bigger trade surplus is the way to accomplish this.