A Many-Country, Many-Good Model of Labor Market Rigidities as a Source of Comparative Advantage
将Cuñat和Melitz（2007）的理论框架扩展到多国情境，研究劳动力市场灵活性差异如何影响比较优势，发现更灵活的劳动力市场国家在波动性更大的行业具有专业化优势。
We extend the theoretical framework in Cuñat and Melitz (2007) to a many-country setup where countries exhibit different degrees of labor market flexibility. We rely on the insights from a recent paper by Costinot (2009) to obtain precise predictions about comparative advantage in this setting: countries with more flexible labor markets specialize in more volatile industries.