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망외부성이 존재하는 상품에 대한 독점 기업의 수직차별화 전략 분석

Analysis of Vertical Differentiation Strategy of a Monopolistic Company under Network Externality

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주제분류산업공학

초록

The proliferation of information technologies made it possible to produce information products of different versions at much lower cost comparing to traditional physical products. Thus it is common for information product manufacturers to consider vertically differentiated product line for more profit through improved market coverage. Another salient characteristic of most information product is network externality. Existing researches dealing with vertical differentiation and network externality usually assumed oligopolistic market where vertically differentiated products are provided by competing companies, respectively. Moreover, they analyzed the essentially dynamic characteristic of network externality statically. In this study, different from the previous researches, the vertical differentiation strategy of a monopolistic company under network externality is dynamically analyzed. We used a two-period model to accommodate the dynamic feature of network externality. Based on the two-period model, the profit maximizing solutions are analyzed. The results showed that a monopolistic company has no incentive to differentiate products vertically when the network externality is absent. On the contrary, when the network externality exists, the monopolistic company can derive more profit by vertically differentiating the product line. It is also shown that, for more profit, the monopolistic company should keep the quality difference between the high quality product and the low quality product as greater as possible.

Abstract

The proliferation of information technologies made it possible to produce information products of different versions at much lower cost comparing to traditional physical products. Thus it is common for information product manufacturers to consider vertically differentiated product line for more profit through improved market coverage. Another salient characteristic of most information product is network externality. Existing researches dealing with vertical differentiation and network externality usually assumed oligopolistic market where vertically differentiated products are provided by competing companies, respectively. Moreover, they analyzed the essentially dynamic characteristic of network externality statically. In this study, different from the previous researches, the vertical differentiation strategy of a monopolistic company under network externality is dynamically analyzed. We used a two-period model to accommodate the dynamic feature of network externality. Based on the two-period model, the profit maximizing solutions are analyzed. The results showed that a monopolistic company has no incentive to differentiate products vertically when the network externality is absent. On the contrary, when the network externality exists, the monopolistic company can derive more profit by vertically differentiating the product line. It is also shown that, for more profit, the monopolistic company should keep the quality difference between the high quality product and the low quality product as greater as possible.

참고문헌 (13)

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  4. Choi, J.P., "Network Externality, Compatibility Choice, and Planned Obsolescence", Journal of Society of Korea Industrial and Systems Engineering, 42(2), pp.167~182 (1994)
  5. Conner, K.R., "Obtaining Strategic Advantage from Being Imitated : When Can Encouraging "Clones" Pay?", Management Science, 41(2), pp.209~225 (1995)[DOI]
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  7. Farrel, J., "Converters, Compatibility, and the Control of Interfaces", The Journal of Industrial Economics, XL(1), pp.9~35 (1992)
  8. Griva, K., "Price Competition in a Differentiated Products Duopoly under Network Effects", Journal of Society of Korea Industrial and Systems Engineering, 23, pp.85~97 (2011)
  9. Katz, M.L., "Network Externalities, Competition, and Compatibility", The American Economic Review, 75(3), pp.424~440 (1985)
  10. Kim, J., "Product Compatibility as a Signal of Quality in a Market with Network Externalities", International Journal of Industrial Organization, 20(7), pp.942~964 (2002)
  11. 이미선, "기술브랜드 마케팅 전략에 대한 탐색적 연구", 한국산학기술학회논문지, 17(7), pp.348~356 (2016), 한국산학기술학회[DOI]
  12. 박종국, "독접과 과점 시장에서 호환성과 망외부성 비교 분석", 산업조직연구, 10(1), pp.1~30 (2002), 한국산업조직학회
  13. Shapiro, C., "Information Rules" (1999), Harvard Business School Press

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