关键词: 价格歧视, 消费限制, 异质需求, 收益最大化, 经济剩余

Abstract: Considering consumers different perceived cost on consumption restriction, this paper formulates optimization models for uniform pricing and discriminatory pricing, respectively. Based on comparative analysis, the revenue-maximization pricing policy and the corresponding market conditions are derived. Under the dominant condition, the effects of price discrimination on revenue, demand, and economic surplus are also discussed. The result reveals three findings as follows. Firstly, only when the scale of consumers with higher perceived cost is large enough or when their price sensitivity is low enough, will the discriminatory pricing policy dominate the uniform pricing policy. Secondly, the difference between consumers 'restriction sensitivity has a positive effect on price discrimination, but this kind of effect will remain unchanged when the difference exceeds a certain upper bound. Finally, under some conditions price discrimination has opposite effects on different consumers demand as well as surplus. Under other conditions, price discrimination has positive effects on each kind of consumers' demand and surplus.

Key words: price discrimination, consumption restriction, heterogeneous demand, revenue maximization, economic surplus