Product diversity in a vertical distribution channel under monopolistic competition

In Russia, chain stores have achieved considerable market power. In this work, we combine a Dixit-Stiglitz industry model with a monopolistic retailer in order to address the following questions: does the retailer always impair prices, variety of goods, and ultimately welfare? Which market structure is worse: Nash or Stackelberg? What should be the public policy in this area?

[1]  C. Aliprantis,et al.  Existence and Optimality of Competitive Equilibria , 1989 .

[2]  S. Salop.  Monopolistic competition with outside goods , 1979 .

[3]  H. Hotelling.  Stability in Competition , 1929 .

[4]  J. Tirole.  The Theory of Industrial Organization , 1988 .

[5]  J. Spengler.  Vertical Integration and Antitrust Policy , 1950, Journal of Political Economy.

[6]  Ralph A. Winter,et al.  Vertical Integration by Contractual Restraints in Spatial Markets , 1983 .

[7]  A. Dixit,et al.  Monopolistic competition and optimum product diversity , 1977 .

[8]  Patrick Rey,et al.  The Economics of Vertical Restraints , 2003 .

[9]  Zhiqi Chen.  Monopoly and Product Diversity: The Role of Retailer Countervailing Power , 2004 .

[10]  Jacques-François Thisse,et al.  Economic Geography: The Integration of Regions and Nations , 2008 .

[11]  A. Dixit.  Vertical integration in a monopolistically competitive industry , 1983 .

[12]  Jacques-François Thisse,et al.  On hotelling's "Stability in competition" , 1979 .

[13]  Matthew Turk,et al.  Vertical Integration , 2015, Computing in Science & Engineering.

[14]  Prices and market structure: an empirical analysis of the supermarket industry in Chile , 2011 .

[15]  Jacques-François Thisse,et al.  Agglomeration and Trade Revisited , 2002, World Scientific Studies in International Economics.

[16]  M. Perry,et al.  Resale Price Maintenance and Forward Integration into a Monopolistically Competitive Industry , 1985 .