Using Payroll Tax Variation to Unpack the Black Box of Firm-Level Production

Working Paper: NBER ID: w26640

Authors: Youssef Benzarti; Jarkko Harju

Abstract: This paper uses quasi-experimental variation in payroll taxes to estimate their incidence and investigate how firms use their input factors. We find that higher payroll tax rates lead to large employment responses and have no effects on employee earnings. As payroll taxes increase, firms substitute away from low-skilled, routine and manual workers towards more productive workers and also reduce investments. Our results imply that, contrary to the canonical tax incidence model, firm-level production and input factor choices are affected by payroll taxes.

Keywords: Payroll taxes; Firm behavior; Labor economics; Tax incidence; Employment effects

JEL Codes: H20; H22; H23


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Reduction in less productive labor (J29)Increase in productivity (O49)
Higher payroll tax rates (H29)Reduction in employment (J63)
Higher payroll tax rates (H29)Reduction in investments (G31)
Higher payroll tax rates (H29)Decrease in fixed asset investments (G31)
Higher payroll tax rates (H29)Increase in research and development investments (O39)
Higher payroll tax rates (H29)No effect on employee earnings (J31)

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