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Estimating Production Functions of Multiproduct Firms

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  • Nelli Valmari

Abstract

Multiproduct firms constitute a considerable share of firms and account for an even greater share of production. Nevertheless, the vast majority of production function estimates are based on the assumption that firms are single-product manufacturers. This assumption is due to a lack of data on how firms allocate their inputs across their various product lines. I provide a strategy for estimating product-specific input allocations and production functions of multiproduct firms involved in monopolistic competition. The strategy is based on using firms’ product prices and output demand in solving for product-level input allocations.

Suggested Citation

  • Nelli Valmari, 2023. "Estimating Production Functions of Multiproduct Firms," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 90(6), pages 3315-3342.
    • Handle: RePEc:oup:restud:v:90:y:2023:i:6:p:3315-3342.
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    File URL: http://hdl.handle.net/10.1093/restud/rdad005
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    References listed on IDEAS

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    1. Jan De Loecker, 2011. "Product Differentiation, Multiproduct Firms, and Estimating the Impact of Trade Liberalization on Productivity," Econometrica, Econometric Society, vol. 79(5), pages 1407-1451, September.
    2. Lisandra Flach & Michael Irlacher, 2018. "Product versus Process: Innovation Strategies of Multiproduct Firms," American Economic Journal: Microeconomics, American Economic Association, vol. 10(1), pages 236-277, February.
    3. Paul L. E. Grieco & Shengyu Li & Hongsong Zhang, 2016. "Production Function Estimation With Unobserved Input Price Dispersion," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 57, pages 665-690, May.
    4. Paul L. E. Grieco & Shengyu Li & Hongsong Zhang, 2016. "Production Function Estimation With Unobserved Input Price Dispersion," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 57(2), pages 665-690, May.
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