Productivity and the product scope of multi-product firms: a test of Feenstra-Ma
AbstractFeenstra and Ma (2008) develop a monopolistic competition model where firms choose their optimal product scope by balancing the profits from a new variety against the costs of “cannibalizing” sales of existing varieties. While more productive firms always have a higher market share, there is no monotonic relationship between firms' productivity level and their choices of product scope. In the model having a higher market share means that firms are hurt more by the “cannibalization effect”. Therefore, the incentive to add more products weakens as productivity rises. This leads to Lemma 3 in Feenstra and Ma (2008): There is an inverted U-shaped relationship between firms' productivities and the range of varieties they choose to produce. This empirical note takes this Lemma to the data for firms from German manufacturing industries. Empirical evidence is in line with the results from the theoretical model.
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Bibliographic InfoArticle provided by AccessEcon in its journal Economics Bulletin.
Volume (Year): 33 (2013)
Issue (Month): 1 ()
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Multi-product firms; productivity; optimal product scope; Germany;
Other versions of this item:
- Horst Raff & Joachim Wagner, 2012. "Productivity and the Product Scope of Multi-product Firms: A Test of Feenstra-Ma," Kiel Working Papers 1814, Kiel Institute for the World Economy.
- Horst Raff & Joachim Wagner, 2012. "Productivity and the Product Scope of Multi-product Firms: A Test of Feenstra-Ma," Working Paper Series in Economics 257, University of Lüneburg, Institute of Economics.
- L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
- L6 - Industrial Organization - - Industry Studies: Manufacturing
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Jo Thori Lind & Halvor Mehlum, 2010.
"With or Without U? The Appropriate Test for a U-Shaped Relationship,"
Oxford Bulletin of Economics and Statistics,
Department of Economics, University of Oxford, vol. 72(1), pages 109-118, 02.
- Lind , Jo Thori & Mehlum , Halvor, 2007. "With or Without U? The appropriate test for a U shaped relationship," Memorandum 21/2007, Oslo University, Department of Economics.
- Lind, Jo Thori & Mehlum, Halvor, 2007. "With or Without U? - The appropriate test for a U shaped relationship," MPRA Paper 4823, University Library of Munich, Germany.
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