RESIDUAL WAGE DISPARITY AND COORDINATION UNEMPLOYMENT*
构建动态定向搜索模型，研究企业间缺乏协调能否解释大部分剩余工资差异。校准至美国经济后，模型生成的剩余工资差异统计量达实证数据的75-90%，但低估了平均失业持续时间。
How much of residual wage dispersion can be explained by an absence of coordination among firms? To answer, we construct a dynamic directed search model with identical workers where firms can create high‐ or low‐productivity jobs and are uncoordinated in their offers to workers, calibrated to the U.S. economy. Workers can exploit ex post opportunities once approached by firms, and can conduct on‐the‐job search. The stationary equilibrium wage distribution is hump‐shaped, skewed significantly to the right, and, with baseline parameters, generates residual dispersion statistics 75–90% of those found empirically. However, the model underestimates the average duration of unemployment.