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Autor:innen: 
Erscheinungsjahr: 
2004
Schriftenreihe/Nr.: 
CSIO Working Paper No. 0047
Verlag: 
Northwestern University, Center for the Study of Industrial Organization (CSIO), Evanston, IL
Zusammenfassung: 
I use an original dataset on the display inventories of several hundred eyewear retailers to study how firms' product-range choices depend on separation from rivals in geographically-differentiated markets. A two-stage estimation approach is used to model firms' initial location decisions and their subsequent choices of product variety. Per-firm variety varies non-monotonically with the degree of local competition. Holding fixed the total number of rivals in a market, a retailer stocks the widest variety when it is near a few other competitors. Firms with four or more rivals show substantially smaller product ranges. This suggests that business-stealing eventually dominates any clustering effects when there is intense competition in a neighbourhood.
Dokumentart: 
Working Paper

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