Marginal Jobs and Job Surplus: A Test of the Efficiency of Separations
研究利用奥地利一项年龄和地区特定失业救济金延长政策的废除，检验科斯定理关于有效分离的理论，发现被摧毁的边际工作与幸存工作在后废除期分离行为相同，表明工资刚性导致无效分离。
Abstract We present a test of Coasean theories of efficient separations. We study a cohort of jobs from the introduction through the repeal of a large age- and region-specific unemployment benefit extension in Austria. In the treatment group, 18.5$\%$ fewer jobs survive the program period. According to the Coasean view, the destroyed marginal jobs had low joint surplus. Hence, after the repeal, the treatment survivors should be more resilient than the ineligible control group survivors. Strikingly, the two groups instead exhibit identical post-repeal separation behaviour. We provide, and find suggestive evidence consistent with, an alternative model in which wage rigidity drives the inefficient separation dynamics.