Foreign Firms, Domestic Wages*
构建了一个统一的理论框架，整合了三种解释外资企业工资溢价的理论，并用雇主-雇员匹配数据验证了所有理论，其中异质性工人理论能解释高达75%的溢价。
Abstract Three types of theories have been used to explain the wage premium in foreign firms: the theories of heterogeneous workers, heterogeneous learning, and heterogeneous firms. We set up a model that explicitly encompasses two of these theories, and that can illustrate the third. This unifying framework allows us to rigorously compare the predictions of the different theories. Thus, it is a useful tool for interpreting new and existing empirical evidence. We illustrate the usefulness of the model on matched employer−employee data, and we find considerable support for all three theories. In particular, the theory of heterogeneous workers can explain up to 75 percent of the premium.