Product Choice and Product Switching
October 2005
Working Paper Number:
CES-05-22
Abstract
This paper develops a model of endogenous product selection within industries by firms. The model is motivated by new evidence we present on the prevalence and importance of product changing activity by U.S. manufacturers. Three-fifths of continuing firms alter their product mix within an industry every five years, and added and dropped products account for a substantial portion of firm output. In the model, firms make decisions about both industry entry and product choice. Product choice is shaped by the interaction of heterogeneous firm characteristics and diverse product attributes. Changes in market conditions within an industry result in simultaneous adjustment along a number of margins, including both entry/exit and product choice.
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:
demand,
investment,
market,
production,
productive,
manufacturing,
cost,
substitute,
manufacturer,
product,
merger,
industry productivity,
endogenous,
heterogeneous,
factory,
expenditure,
consumption,
exogenous
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Standard Industrial Classification,
Longitudinal Research Database,
National Science Foundation,
Center for Economic Studies
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