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Estimating industry conduct using promotion data

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  • Christian Michel
  • Jose Manuel Paz y Miño
  • Stefan Weiergraeber

Abstract

We estimate the evolution of competition in the ready‐to‐eat cereal industry. To separately identify detailed patterns of industry conduct from unobserved marginal cost shocks, we construct novel instruments that interact data on rival firms' promotions with measures of products' relative isolation in the characteristics space. We find strong evidence for partial price coordination among cereal manufacturers in the beginning of our sample. After a merger in 1993 conduct becomes more competitive and on average consistent with multiproduct Nash pricing. The last part of our sample is characterized by even more aggressive pricing, implying median wholesale margins of less than 5%.

Suggested Citation

  • Christian Michel & Jose Manuel Paz y Miño & Stefan Weiergraeber, 2024. "Estimating industry conduct using promotion data," RAND Journal of Economics, RAND Corporation, vol. 55(4), pages 658-683, December.
    • Handle: RePEc:bla:randje:v:55:y:2024:i:4:p:658-683
    DOI: 10.1111/1756-2171.12477
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