Wage Shocks and North American Labor-Market Integration
利用美国和墨西哥的家庭层面数据，研究两国劳动力市场的一体化程度，发现尽管存在较大工资差异，但市场已紧密整合，且边境地区整合程度更高，这种整合早于北美自由贸易协定，可能主要由移民驱动。
This study uses household-level data from the United States and Mexico to examine labor-market integration. I consider how the effects of shocks and rates of convergence to an equilibrium differential are affected by borders, geography, and demographics. I find that even though a large wage differential exists between them, the labor markets of the United States and Mexico are closely integrated. Mexico's border region is more integrated with the United States than is the Mexican interior. Evidence of integration precedes the North American Free Trade Agreement (NAFTA) and may be largely the result of migration.