近年来，共享经济得到了快速发展。在共享经济下，闲置服务资源的可交易性提升了消费者对服务的使用效率。与此同时，交易平台的出现/闲置服务资源的自主再分配使得企业丧失部分的定价能力。因此，在某些条件下，共享平台的出现好比一个零和游戏——一方获益，另一方失利。此外，部分企业盲目地加大资源的投入，进而造成资源浪费和降低社会福利等“共输”的局面。为了应对这一问题，地方政府出台了限制资源投入的措施。本项目拟基于消费者行为，运用博弈论模型分析共享经济活动对消费者，企业乃至社会的影响。本项目的研究对于揭示共享经济下闲置服务资源再分配以及价格歧视失效的机制具有重要理论意义和学术价值，也为实践中如何根据市场条件制定调控资源投放量和实现（消费者、企业和社会三方）共赢的措施提供理论基础和启示。

Recently, we witness the rapid development of sharing economy. Generally speaking, sharing economy increases consumers’ utilization of service and resource. Sharing economy, however, weakens firms’ pricing power in the sense that trading price is not directly set by firms, but is determined by the demand and supply in trading markets. It seems that sharing is a zero-sum game. Moreover, some firms enlarge its investment in production, which decreases the system-wide resource utilization and the social welfare, thus leading to all-lose situation. To address these problems, regional governments have introduced policy to restrict firms’ investment. In the project, we will develop a game-theoretic model to study the impact of sharing economy on consumer behavior, firms’ operation and profit, and the social welfare. The aim of this project is to reveal sharing economy's advantage in resource reallocation and disadvantage in pricing, and to support the social planner to make decision on how to coordinate players’ performance so as to achieve the all-win goal in the presence of sharing economy. Therefore, this research project is of great scientific significances and application values.