研究生workshop由首都经济贸易大学国际经济管理学院主办。主要内容：一是研究生报告前沿或经典文献，二是研究生报告自己的研究或研究设想。论坛宗旨是：为学院师生搭建一个学术交流平台，营造浓厚学术氛围；通过对经典论著或前沿文献的研讨，拓宽研究生的理论视野，提升研究生的前沿方法运用能力，帮助研究生提高论文写作质量。

本期workshop

报告人一：孙婧，博士2024级

导师：伍斌

报告题目：Ordinal Centrality

Journal of Political Economic，2022

报告摘要：

This paper studies the extent to which centrality measures share a com- mon structure. In contrast with prior work, I take an ordinal approach, defining centrality measures as preorders that satisfy an axiom called recursive monotonicity. From this axiom, I derive two fundamental measures, strong and weak centrality, and I relate these to the equilib- ria of network games. Any equilibrium in a game of strategic comple- ments implicitly orders the players by their actions. Strong centrality captures comparisons shared across all equilibria in all such games. Weak centrality captures comparisons shared across minimal and max- imal equilibria in all such games.

报告人二：孟德华，博士2024级

导师：马庆寅

报告题目：Solving the income fluctuation problem with unbounded rewards 

                    Journal of Economic Dynamics & Control, 2014

报告摘要：

This paper studies the income fluctuation problem without imposing bounds on utility, assets, income or consumption. We prove that the Coleman operator is a contraction mapping over the natural class of candidate consumption policies when endowed with a metric that evaluates consumption differences in terms of marginal utility. We show that this metric is complete, and that the fixed point of the operator coincides with the unique optimal policy. As a consequence, even in this unbounded setting, policy function iteration always converges to the optimal policy at a geometric rate.