Process Innovations in a Duopoly with Two Region
Most models of duopolies with a spatial dimension refer to the 'linear' or 'circular' city. Moreover, in duopoly models with innovations, the spatial dimension is usually dropped. We bridge this gap by constructing a model with two regions, each hosting production of a differentiated quality (high and low quality). In addition, consumers are heterogeneous with different willingness to pay for quality. The analysis focuses on the incentives for process innovations which affect the unit cost of production. The model is used to analyze two common trends in the urbanization process and their effects on the incentive for process innovations. The first is increased transportation costs and worsened interregional accessibility (the result is reversed for a decrease in transportation costs). We find that such changes increase the amount of process R&D more in the region producing a low-quality good than in the region producing a high-quality good. Second, we examine the effect on optimal process R&D of moving consumers from the region producing low-quality goods to the region producing high-quality goods. This lowers the optimal amount of process R&D undertaken in the region producing the low-quality good, while it is raised in the other region.
|Date of creation:||29 Nov 2004|
|Contact details of provider:|| Postal: CESIS - Centre of Excellence for Science and Innovation Studies, Royal Institute of Technology, SE-100 44 Stockholm, Sweden|
Phone: +46 8 790 95 63
Web page: http://www.infra.kth.se/cesis/
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Gilles Duranton & Diego Puga, 2000.
"Nursery Cities: Urban diversity, process innovation, and the life-cycle of products,"
dpuga-00-01, University of Toronto, Department of Economics.
- Gilles Duranton & Diego Puga, 2001. "Nursery Cities: Urban Diversity, Process Innovation, and the Life Cycle of Products," American Economic Review, American Economic Association, vol. 91(5), pages 1454-1477, December.
- Gilles Duranton & Diego Puga, 2000. "Nursery Cities: Urban Diversity, Process Innovation and the Life-Cycle of Products," CEP Discussion Papers dp0445, Centre for Economic Performance, LSE.
- Duranton, Gilles & Puga, Diego, 2000. "Nursery Cities: Urban Diversity, Process Innovation, and the Life-Cycle of Products," CEPR Discussion Papers 2376, C.E.P.R. Discussion Papers.
- Gilles Duranton & Diego Puga, 2000. "Nursery cities: urban diversity, process innovation and the life-cycle of products," LSE Research Online Documents on Economics 20204, London School of Economics and Political Science, LSE Library.
- Segerstrom, Paul S & Anant, T C A & Dinopoulos, Elias, 1990. "A Schumpeterian Model of the Product Life Cycle," American Economic Review, American Economic Association, vol. 80(5), pages 1077-1091, December.
- Rosenkranz, Stephanie, 2003. "Simultaneous choice of process and product innovation when consumers have a preference for product variety," Journal of Economic Behavior & Organization, Elsevier, vol. 50(2), pages 183-201, February.
- Avner Shaked & John Sutton, 1982. "Relaxing Price Competition Through Product Differentiation," Review of Economic Studies, Oxford University Press, vol. 49(1), pages 3-13.
- Jovanovic, B. & MacDonald, G.M., 1992.
"The Life-Cycle of Competitive Industry,"
92-09, Rochester, Business - Financial Research and Policy Studies.
- Jovanovic, B. & MacDonald, G., 1993. "The Life Cycle of a Competitive Industry," Working Papers 93-34, C.V. Starr Center for Applied Economics, New York University.
- Boyan Jovanovic & Glenn MacDonald, 1993. "The Life-Cycle of a Competitive Industry," NBER Working Papers 4441, National Bureau of Economic Research, Inc.
- d'Aspremont, Claude & Jacquemin, Alexis, 1988.
"Cooperative and Noncooperative R&D in Duopoly with Spillovers,"
American Economic Review,
American Economic Association, vol. 78(5), pages 1133-1137, December.
- d'ASPREMONT, Claude & JACQUEMIN, Alexis, "undated". "Cooperative and noncooperative R&D in duopoly with spillovers," CORE Discussion Papers RP 823, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Bonanno, Giacomo & Haworth, Barry, 1998. "Intensity of competition and the choice between product and process innovation," International Journal of Industrial Organization, Elsevier, vol. 16(4), pages 495-510, July.
- Charlie Karlsson, 1997. "Product development, innovation networks, infrastructure and agglomeration economies," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 31(3), pages 235-258.
- Steven Klepper & Kenneth L. Simons, 2000. "The Making of an Oligopoly: Firm Survival and Technological Change in the Evolution of the U.S. Tire Industry," Journal of Political Economy, University of Chicago Press, vol. 108(4), pages 728-760, August.
- Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
- Utterback, James M & Abernathy, William J, 1975. "A dynamic model of process and product innovation," Omega, Elsevier, vol. 3(6), pages 639-656, December.
When requesting a correction, please mention this item's handle: RePEc:hhs:cesisp:0018. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Vardan Hovsepyan)
If references are entirely missing, you can add them using this form.