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AIEL 2026


41st Conference of the Italian Association of Labour Economics

Department of Law
Roma Tre University 

Rome, 17-19 September 2026 

Firm Adjustment to Idiosyncratic Labor Shocks: Evidence from Injuries


Presenter

Emiliano Sandri (UCL)


Coauthors

Domenico Depalo and Salvatore Lattanzio


Abstract

This paper analyzes firm-level responses to workplace accidents using detailed administrative data and a matched dynamic difference-in-differences approach. We document how firms adjust employment, wages, and workforce composition following injuries. Firms respond by expanding employment, primarily through permanent hires. Incumbent workers experience earnings gains driven mostly by higher weeks worked in a year and small but significant weekly wage increases. The effects on incumbents are stronger when the injured worker is low-skilled or employed in low-productivity firms, reflecting greater internal substitutability. Conversely, firms turn to external hiring more when the injured worker is high-skill. Firm productivity and profitability remain largely unaffected, indicating that higher replacement costs offset increases in labor input. Our findings highlight substantial adjustment costs and limited worker substitutability following workplace injuries.