Trade and Growth at Different Stages of Economic Development
研究了贸易开放度对长期经济增长的影响是否随经济发展水平变化，发现存在收入门槛，高于门槛时贸易促进增长，低于门槛时贸易阻碍增长，且影响通过投资和生产率渠道实现。
Abstract The paper investigates whether trade openness contributes to long-run economic growth and the effect varies with the level of economic development. We implement this analysis through the instrument-variable threshold regressions approach. The empirical evidence shows that there indeed exists an income threshold above which greater trade openness has beneficial effects on economic growth and below which heightened trade has detrimental consequences. It implies that greater international trade and integration may contribute to more diverging economies. In addition, the relationship of trade with growth is found to work possibly through both investment and productivity growth channels.