STEG Working Paper Series Research Theme 1: Firms, Frictions and Spillovers, and Industrial Policy

Outsourcing Policy and Worker Outcomes: Causal Evidence from a Mexican Ban

WP088 EstefanGerhardKaboskiKondoQian OutsourcingPolicyandWorkerOutcomesCausalEvidencefromaMexicanBan.pdf

PDF DOCUMENT • 1.1 MB

Mexico Business district

A weakening of labour protection policies is often invoked as one cause of observed monopsony power and the decline in labour’s share of income, but little evidence exists on the causal impact of labour policies on wage markdowns. Using confidential Mexican economic census data from 1994 to 2019, we document a rising trend over this period in on-site outsourcing. Then, leveraging data from a manufacturing panel survey from 2013 to 2023 and a natural experiment featuring a ban on domestic outsourcing in 2021, we show that the ban drastically reduced outsourcing, increased wages, and reduced measured markdowns without lowering output or employment. Consistent with the presence of monopsony power, we observe large markdowns for the largest firms, with the decline in markdowns in response to the ban concentrated among high-markdown firms. However, we also find that the reform reduced capital investment and increased the probability of market exit.

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