Multi-Product Firms and Product Switching
Andrew B. Bernard
Dartmouth College - Tuck School of Business; National Bureau of Economic Research (NBER); Centre for Economic Policy Research (CEPR)
Stephen J. Redding
Princeton University; London School of Economics (LSE); Centre for Economic Policy Research (CEPR)
Peter K. Schott
Yale University - School of Management; National Bureau of Economic Research (NBER)
NBER Working Paper No. w12293
This paper examines the frequency, pervasiveness and determinants of product switching among U.S. manufacturing firms. We find that two-thirds of firms alter their mix of five-digit SIC products every five years, that one-third of the increase in real U.S. manufacturing shipments between 1972 and 1997 is due to the net adding and dropping of products by survivors, and that firms are more likely to drop products which are younger and have smaller production volumes relative to other firms producing the same product. The product-switching behavior we observe is consistent with an extended model of industry dynamics emphasizing firm heterogeneity and self-selection into individual product markets. Our findings suggest that product switching contributes towards a reallocation of economic activity within firms towards more productive uses.
Number of Pages in PDF File: 48working papers series
Date posted: June 16, 2006
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