Price-Cost Margins and Fixed Costs

Jozef Konings, Filip Abraham, Yannick Bormans and ,

No 16796, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: This paper provides a new method to estimate price-cost margins in the presence of fixed costs of production. We exploit properties of the primal and dual revenue based and cost based Solow residual. Ignoring fixed costs in production underestimates price-cost margins and overestimates excess profit margins. Using a 30 year panel of Belgian firms we estimate price cost margins of 25.9% on average, with fixed costs as a fraction of sales of 23.4%. Fixed costs as well as price-cost margins have declined in the last three decades, pushing excess profit margins close to zero, suggesting competitive markets. The presence of fixed costs implies that price-cost margins might change not only due to a change in firms’ market power, but also due to changes in the production process (i.e., the mix between variable and fixed costs) or even due to a combination of both. Our novel methodology is able to distinguish these underlying mechanisms, thereby providing an additional layer of insight to the ongoing academic and policy debate on firms’ market power.

Keywords: Price-cost margins; Fixed costs; Excess profits; market power (search for similar items in EconPapers)
Date: 2021-12
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Related works:
Working Paper: Price-cost Margins and Fixed Costs (2021)
Working Paper: Price-cost Margins and Fixed Costs (2021)
Working Paper: Price-cost margins and fixed costs (2020)
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