"Firms' decisions about which goods to produce are often made at a more disaggregate level than the data observed by empirical researchers. When products differ according to production technique or the way in which they enter demand, this data aggregation problem introduces a bias into sta...

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Bibliographic Details

Main Authors:	Schott, Peter K. (Author), Bernard, Andrew B. 1963- (Author), Redding, Stephen 1972- (Author)
Format:	Book
Language:	English
Published:	Cambridge, Mass. National Bureau of Economic Research 2005
Series:	National Bureau of Economic Research <Cambridge, Mass.>: NBER working paper series 11575
Subjects:	Ökonometrisches Modell New products > Econometric models
Online Access:	Volltext
Summary:	"Firms' decisions about which goods to produce are often made at a more disaggregate level than the data observed by empirical researchers. When products differ according to production technique or the way in which they enter demand, this data aggregation problem introduces a bias into standard measures of firm productivity. We develop a theoretical model of heterogeneous firms endogenously self-selecting into heterogeneous products. We characterize the bias introduced by unobserved variation in product mix across firms, and the implications of this bias for identifying firm and industry responses to exogenous policy shocks such as deregulation. More generally, we demonstrate that product switching gives rise to a richer set of industry-level dynamics than models where firm product mix remains fixed"--National Bureau of Economic Research web site.
Physical Description:	44 S. graph. Darst.