Input and Output Market Power with Non-neutral Productivity: Livestock and Labor in Meatpacking

Azzeddine Azzam, Jordi Jaumandreu and Rigoberto Lopez

No 17785, CEPR Discussion Papers from Centre for Economic Policy Research

Abstract: Market power can be present in both a ï¬ rm’s product and input markets, allowing for supranormal proï¬ ts to the detriment of social welfare. However, identiï¬ cation is challenging because it requires unbiased estimates of production elasticities under the interwoven presence of monopsony power and non-neutral productivity. We propose a way to measure market power in the product market and several input markets of a ï¬ rm that is robust to biased technological change. The inference can be checked by assessing how much each market contributes to the gross proï¬ ts of the ï¬ rm. We illustrate the method with data from the highly concentrated US meatpacking industry, which is often suspected of exploiting livestock farmers and immigrant workers. We conclude that the prices in the product and livestock input markets are competitive, but also that production workers receive only 60% of the value of their marginal productivity.

Keywords: market; power (search for similar items in EconPapers)
Date: 2023-01
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