Putting Tasks to the Test: Human Capital, Job Tasks, and Wages
利用代表性调查数据，研究发现分析性、常规性和体力性工作任务在职业内和职业间差异显著，与工人特征相关，并能稳健预测工资差异。
Using original, representative survey data, we document that analytical, routine, and manual job tasks can be measured with high validity, vary substantially within and between occupations, are significantly related to workers' characteristics, and are robustly predictive of wage differences between occupations and among workers in the same occupation. We offer a conceptual framework that makes explicit the causal links between human capital endowments, occupational assignment, job tasks, and wages, which motivate a Roy model of the allocation of workers to occupations. We offer two simple tests of the model's gross predictions for the relationship between tasks and wages, both of which receive qualified empirical support.