Identifying Sorting in Practice
提出一种仅利用企业利润排序和工资数据来识别劳动力市场分类匹配方向与强度的新方法，并应用于意大利威尼托地区数据，发现工人与企业类型正相关约52%。
We propose a novel methodology to uncover the sorting pattern in labor markets. We identify the strength of sorting solely from a ranking of firms by profits. To discern the sign of sorting, we build a noisy ranking of workers from wage data. Our test for the sign of sorting is consistent even with noisy worker rankings. We apply our approach to a panel dataset that combines social security earnings records with detailed financial data for firms in the Veneto region of Italy. We find robust evidence of positive sorting. The correlation between worker and firm types is about 52 percent.