Economic consequences of vertical mismatch

Garibaldi, P. and Gomes, Pedro and Sopraseut, T. (2024) Economic consequences of vertical mismatch. Quantitative Economics , ISSN 1759-7323. (In Press)

Abstract

We study two first-order economic consequences of vertical mismatch, using a simple (neoclassical) model of under- and over-employment. Individuals of high type can perform both skilled and unskilled jobs, but only a fraction of low-type workers can perform skilled jobs. People have different costs over these jobs. First, we calibrate the model to match US CPS time-series since the 1980s. To control for unobserved heterogeneity, we compute wages based on workers who have switched between skilled and unskilled jobs. We show that changes in educational mismatch has contributed one-sixth as much as skilled-bias technological progress for the rise in the college premium. Second, we calibrate the model to match moments of 50 US states, to measure the output costs of frictions generating mismatch. The cost of frictions is 0.26% of output on average but varies between 0.06% to 0.77% across states. The key variable that explains the output cost of vertical mismatch is not the percentage of mismatched workers but their wage relative to well-matched workers.

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