Firm Wage Differentials and Labor Market Sorting: Reconciling Theory and Evidence
研究发现企业间工资差异与工人技能不相关，表明不存在分类，但这一解释与同事隔离证据矛盾。通过分类模型校准美国数据，揭示了工资非单调性导致偏差，并提出更准确的工人-同事分类度量。
Why do firms pay different wages? Empirical evidence suggests the presence of substantial differences in firm pay controlling for worker skill. Moreover, these differences are uncorrelated with skills, indicating the absence of sorting. I show that the face value interpretation is inconsistent with evidence on coworker segregation. I interpret the evidence by applying a sorting model and show that the correlation is biased. I identify nonmonotonicities in wages as the reason for this bias and show that a measure of worker-coworker sorting is more accurate. By calibrating the model to US data, I confirm that the model matches many job market characteristics.