Based on rich administrative data from Germany, we address the differences in occupation specific job-matching …) in an occupation and the diversity of tasks in an occupation. We find that the matching efficiency improves with higher … positive or negative effects on the matching efficiency. We discuss the conditions under which the empirical results can be …

The matching of likes is a frequently observed phenomenon. However, for such assortative matching to arise in a search … can generate even perfect assortative matching under weak conditions: supermodularity of the match production function is … the model achieves nearly unconstrained efficiency despite frictions. -- Assortative matching ; sorting ; search ; signals …