经济学院2023年数字经济系列讲座（五）

讲座题目： Sequential Network Design

主讲嘉宾：赵玮 助理教授 （中国人民大学经济学院）

讲座时间：2023年4月27日（周四）下午14：30--16：30

讲座地点：华中科技大学经济学院319室

摘要：We study the problem of designing efficient network sequentially. In each period, the planner connects two agents who have not been previously linked in the network created in earlier periods, and then the agents engage in a game with local complementarity based on the newly established network. The planner benefits from the entire discounted stream of equilibrium welfare. We show that creating a nested split graph in each period constitutes the optimal strategy for the planner, regardless of the values of discount factors. Moreover, when the planner discounts future welfare heavily, the optimal strategy induces a quasi-complete graph in each period, irrespective of the strength of complementary effect. Our paper therefore provides a micro-foundation for quasi-complete network since it is formed under greedy algorithm. We also investigate the robustness of these findings under non-linear best response and weighted networks.

讲座嘉宾简介：

赵玮在中国人民大学经济学院担任助理教授。博士毕业于巴黎高等商学院，主要研究动态博弈，社交网络理论和金融经济学。文章发表在International Economic Review.