We characterize the employment value of different worker-occupation matches and estimate the substitutability of match-specific inputs in production. In an equilibrium model of the U.S. labor market, we examine the responses of employment and wages to shifts in technology and match values....

We quantify firm heterogeneity in skill returns and present direct evidence of worker–firm complementarities. Within a model of firms' demand for cognitive and noncognitive attributes we show that identification depends on the availability of skill measures. Linking administrative data to test...