Upskilling: Do Employers Demand Greater Skill When Workers Are Plentiful?
技能要求上升：劳动力充裕时雇主是否要求更高技能？
Using a proprietary database of online job postings, we find that education and experience requirements rose during the Great Recession. These increases were larger in states and occupations that experienced greater increases in the supply of available workers. This finding is robust to controlling for local demand conditions and firm [Formula: see text] job-title fixed effects and using a natural experiment arising from troop withdrawals as an exogenous shock to labor…