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논문 기본 정보

자료유형
학술저널
저자정보
강영선 (서울시립대학교) 강현모 (국민대학교)
저널정보
한국경영과학회 경영과학 經營科學 第32卷 第1號
발행연도
2015.3
수록면
83 - 100 (18page)

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초록· 키워드

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We analyze a duopoly competition when two firms face input cost increases. The objective of this study is to determine the firms’ optimal strategy between a price increase and downsizing under conditions of a spatially differentiated market and consumers’ diminishing utility on the product size. We develop a theoretical model of two competing firms offering homogenous products using the standard Hotelling model to determine how firms’ optimal strategies change when facing input cost increases. In this paper, there are two types of duopoly competitions: symmetric and asymmetric. In the symmetric case, the two firms have the same marginal cost and are producing and selling identical products. In the asymmetric case, the two firms have different marginal costs. The results show that the optimal strategy decision depends on the size of the input cost increase and the cost differences between the two firms. We find that when two firms are asymmetric (i.e., they have different marginal costs), the two firms might choose asymmetric pairs of strategies in equilibrium under certain conditions. When the cost differences between the two firms are sufficiently large and the cost increase is sufficiently small, the cost leader chooses price increase, and the cost-disadvantaged firm chooses downsizing in equilibrium. This asymmetric strategy reduces price competition between two firms, and consumers are better off. When the cost differences between the two firms are sufficiently large, downsizing is the dominant strategy for the cost-disadvantaged firm. The cost-disadvantaged firm finds it more profitable to reduce the product size than to increase its price to reduce price competition, because consumers prefer downsizing to price increases. This paper might be a good starting point for further analytical research in this area.

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Abstract
1. 서론
2. 연구 모형
3. 분석 방법 및 결과
4. 결론
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