岭南学术论坛－经济学系列Seminar－Fractional Top Trading Cycles

第519期岭南学术论坛（经济学系列Seminar）

报告题目：Fractional Top Trading Cycles

报 告 人：余景升（西南财经大学经济学院  讲师）

主 持 人：徐欣毅（中山大学岭南学院 助理教授）

时      间：2018年11月30日（周五）下午14:30-16:00

地      点：MBA楼201

摘要：

We propose a class of mechanisms that generalize Top Trading Cycles to solve the fractional endowment exchange problem. In the problem, each agent may own fractional amounts of multiple objects and each object may be owned by multiple agents. At every step, our mechanisms let agents point to most preferred objects and objects point to all of their owners. We use a linear equation system, which is an instance of the closed Leontief input-out model, to describe how to trade the generated network at every step. In the intuitive explanation, there exist disjoint absorbing sets in the generated network and agents in each absorbing set trade endowments only among themselves. All mechanisms in the class are individually rational and sd-efficient. Some of them satisfy desirable fairness properties including equal-endowment no envy and stronger notions. The mechanisms have a straightforward application in school choice with weak priorities.

报告人简介：

       余景升博士现为西南财经大学讲师，研究方向主要是市场机制设计、微观经济理论。余景升于2015年在上海财经大学获得经济学博士，曾在Journal of Economic Theory 上发表论文 “A New Perspective on Kesten's School Choice with Consent Idea”。

        欢迎感兴趣的年轻老师和博士生参加！

        中山大学岭南学术论坛分经济、金融和管理三个系列，是定期邀请国内外优秀学者前来开展学术交流的平台。每系列每个月定期举办2-3次。目前已经成功举办多期，并得到了各界的高度评价。