Measuring Factor Adjustment Costs

Abstract

I estimate adjustment costs for labor and capital from the Euler equations for factor demand. For both factors, I find relatively strong evidence against substantial adjustment costs. My estimates use annual data from two-digit industries. I investigate the potential effects of three types of specification error: (1) aggregation over time, (2) aggregation over firms with heterogeneous demand shocks, and (3) estimation of a convex adjustment-cost technology in the presence of non-convex discrete adjustment costs. I find that the likely biases from these specification errors are relatively small. My results support the view that rents arising from adjustment costs are relatively small and are not an important part of the explanation of the large movements of the values of corporations in relation to the reproduction costs of their capital.

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