This paper studies the welfare effects of location space constraints when the duopoly sellers are vertically separated. As the downstream firms respond to higher input prices by locating further away from the center of the market, constraining them to locate within the linear city allows the upstream manufacturers better to exploit the downstream industry. This leads to higher final good prices and lower consumer welfare (despite the savings on transportation). This result – which is robust to the inclusion of R&D decisions – is in sharp contrast to the case in which the sellers are vertically integrated. Also different, the incentive to invest in cost-reducing R&D is always insufficient compared with the social optimum. Our results thus suggest the importance of taking into account the vertical market structure in formulating zoning (product standard) and R&D policies.
Location constraint R&D Vertical separation
L1 R3 D4
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We are indebted to the editor, Lawrence J. White, for many valuable comments and suggestions. We also wish to thank two anonymous referees and participants at the Industrial Organization Theory Workshop at Shandong University and the Industrial Organization and International Trade Workshop at Jinan University for helpful comments. Financial support from the National Science Foundation of China (71603083, 71603283) is gratefully acknowledged. The usual disclaimers apply.
Bárcena-Ruiz, J. C., & Casado-Izaga, F. J. (2014). Zoning under spatial price discrimination. Economic Inquiry, 52(2), 659–665.CrossRefGoogle Scholar
Bassi, M., Pagnozzi, M., & Piccolo, S. (2015). Product differentiation by competing vertical hierarchies. Journal of Economics and Management Strategy, 24(4), 904–933.CrossRefGoogle Scholar
Bonanno, G., & Vickers, J. (1988). Vertical separation. Journal of Industrial Economics, 36(3), 257–265.CrossRefGoogle Scholar
Brekke, K., & Straume, O. (2004). Bilateral monopolies and location choice. Regional Science and Urban Economics, 34(3), 275–288.CrossRefGoogle Scholar
Chen, Y. (2001). On vertical mergers and their competitive effects. RAND Journal of Economics, 32(4), 667–685.CrossRefGoogle Scholar
Cowan, S. (2012). Third-degree price discrimination and consumer surplus. Journal of Industrial Economics, 60(2), 333–345.CrossRefGoogle Scholar
d’Aspremont, C., Gabszewicz, J. J., & Thisse, J.-F. (1979). On Hotelling’s ‘stability in competition’. Econometrica, 47(5), 1145–1150.CrossRefGoogle Scholar
d’Aspremont, C., & Jacquemin, A. (1988). Cooperative and noncooperative R&D in duopoly with spillovers. American Economic Review, 78(5), 1133–1137.Google Scholar
Gu, Y., & Wenzel, T. (2009). A note on the excess entry theorem in spatial models with elastic demand. International Journal of Industrial Organization, 27(5), 567–571.CrossRefGoogle Scholar
Gupta, S., & Loulou, R. (1998). Process innovation, product differentiation, and channel structure: strategic incentives in a duopoly. Marketing Science, 17(4), 301–316.CrossRefGoogle Scholar