Oligopsony and Monopsonistic Competition in Labor Markets
论证寡头买方垄断或垄断竞争模型能解释劳动力市场的诸多实证现象，如工资差异、歧视持续存在、培训供给不足及最低工资的异常就业效应。
We argue that models of oligopsony or monopsonistic competition provide insights and explanation for many empirical phenomena in labor markets. Using a simple model with job differentiation and preference heterogeneity, we illustrate how such models can be employed to explain the existence of wage dispersion, the persistence of labor market discrimination, market failures in the provision of training and the anomalous employment effects of minimum wages.