The Internal Economics of the Firm: Evidence from Personnel Data
分析一家公司二十年的人事数据，发现层级结构简单稳定，员工学习速度和公司对能力的识别很重要，存在晋升快车道，离职率与工龄或工资关系不大，薪酬受职位等级影响但同等级内差异大。
We analyze twenty years of personnel data from one firm. The hierarchical structure is quite simple and stable. Career movements suggest that the employee's rate of learning and the firm's learning about ability are important. There are promotion "fast tracks." Exit rates vary little with tenure or salary. The firm has personnel policies like those described in the internal labor markets literature, although several theoretical preconditions for ILMs, such as ports of entry and exit, are lacking. Job levels are important to compensation, but there is also substantial individual variation in pay within levels. Our companion paper (in this issue) explores the wage policy of this firm.