Education and Geographical Mobility: The Role of the Job Surplus
研究发现受教育程度更高的工人更愿意接受远距离工作并更快迁移，这源于高技能工作匹配质量带来的高剩余，足以覆盖迁移成本，从而解释了大部分流动差异。
Better educated workers accept many more long-distance job offers, and relocate quicker following local shocks. I attribute this to a fundamental feature of their labor market experience, unrelated to geography: large returns to job match quality. If a good offer happens to originate from far away, the match surplus is then more likely to justify the cost of moving. This “lubricates” labor markets spatially. Using wage transition data (and a jobs ladder model), I show this can explain the bulk of mobility differentials. These differentials can be closed by subsidizing long-distance matches, and I quantify the cost of doing so.