New hires, adjustment costs, and knowledge transfer—evidence from the mobility of entrepreneurs and skills on firm productivity
研究了雇佣不同类型知识员工（前企业家、换工作员工、失业者）对企业生产率的影响及调整成本，发现雇佣前企业家仅在来自高能力分布顶端时才能在第一年后提升生产率。
Abstract This paper evaluates the productivity impacts and the subsequent adjustment costs associated with hiring different knowledge workers. I focus on the difference between hiring former entrepreneurs, employees who change jobs, and unemployed individuals. I am the first to evaluate the direct impact that hiring former entrepreneurs has on firm productivity and the heterogenous adjustment costs associated with the different types of new hires. I find no difference between the first-year adjustment costs of entrepreneurs and those of regular-wage employees. Hiring former entrepreneurs is a way to increase productivity after the first year of employment only if the former entrepreneurs are from the highest end of the ability distribution.