CAJ | 학술논문

在一个扩展 Hotelling 模型中，讨论了双寡头服务商在社会偏好度处于临界值情形和一般情形时的策略选择问题，研究了双寡头服务商社会偏好度的差异性对服务商利润、市场份额、定价策略的影响，服务商分为伦理型和自利型。研究结果表明：①当产品差异性较小而单位产品效用较大时，服务商一个趋向于自利型，另一个趋向于伦理型，各服务商收益最大，当产品差异性较大而单位产品效用较小时，服务商均趋向于自利型，两服务商收益最大；②当双寡头服务商社会偏好度相同时，服务商的收益均随着社会偏好度的增大而减少。
재일개확전 Hotelling 모형중，토론료쌍과두복무상재사회편호도처우림계치정형화일반정형시적책략선택문제，연구료쌍과두복무상사회편호도적차이성대복무상리윤、시장빈액、정개책략적영향，복무상분위윤리형화자리형。연구결과표명：①당산품차이성교소이단위산품효용교대시，복무상일개추향우자리형，령일개추향우윤리형，각복무상수익최대，당산품차이성교대이단위산품효용교소시，복무상균추향우자리형，량복무상수익최대；②당쌍과두복무상사회편호도상동시，복무상적수익균수착사회편호도적증대이감소。
In an extended Hotelling model,we analyze a dynamic game in which duopoly service providers with different social preference decide whether to adopt ethical strategy or selfish strategy.We consider this game in two different cases,the critical case and the general case.We also investigate how the social preference affects their profits and prices.For service providers,we made a distinction between ethical ones and selfish ones.We find that,for the duopoly service providers under the environment of market economy,neither the more ethical they are,the more profitable they will be,nor the more selfish they are,the more profitable they will be.If the difference of product between duopoly service providers is relatively small and the utility of per unit product is large,it will be more profitable on condition that one service provider is ethical,another is selfish;and if the difference of product between duopoly service providers is relatively large and the utility of per unit product is small,however,it will be more profitable on condition that they are both selfish.We also find that if duopoly service providers have the same social preference,the higher social preference they are,the less profitable they will be.