TRADE, TECHNOLOGICAL CHANGE, AND WAGE INEQUALITY: THE CASE OF MEXICO
研究了美墨贸易一体化后墨西哥技能溢价上升的现象，通过构建模型解释技能稀缺国家在贸易自由化后技能溢价反而上升的悖论，发现墨西哥企业为进入美国供应链而租用美国技术是主因。
Abstract Following the U.S.–Mexico trade integration, the skill premium rose dramatically in Mexico. Standard trade theory predicts the skill premium in a skill‐scarce country should fall—not rise—following such an integration. This article reconciles theory and data by building a model in which intermediate producers in Mexico begin to produce for the U.S. supply chain following liberalization. To do so, they must rent ideas from the United States, which are more skill‐intensive, thus increasing the skill premium. This mechanism is supported by the data: Mexican plants and industries that trade more with the United States rent more U.S. technology and have higher skill premia.