Optimal research effort and product differentiation in network industries
AbstractThis paper studies the introduction of a new and incompatible technology in a spatial market with network externalities. In competition with an established network the paper investigates how long an entrant optimally should do research before entering the market and what level of product differentiation should be chosen in order to maximize its present value profits. Research time is important as it not only determines the quality of the technology that is introduced; it also has consequences for how successfully the two competing firms build their network of users. First, the paper derives a function characterizing the intertemporal evolution in market shares resulting from the newcomer’s choices. Second, it is shown that each level of technological quality is associated with both a minimum and a maximum level of product differentiation that should be chosen in equilibrium. Third, the entrant’s problem is solved by numerical methods.
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Bibliographic InfoPaper provided by School of Economics and Management, University of Aarhus in its series Economics Working Papers with number 2007-19.
Date of creation: 20 Nov 2007
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Web page: http://www.econ.au.dk/afn/
Network externalities; product differentiation; product introduction; technological change;
Find related papers by JEL classification:
- D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
- L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
- O33 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
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