主题:Utility Maximization with Periodic Evaluations定期评估效用最大化
主讲人:帝国理工学院 Harry Zheng教授
主持人:555000jc赌船 马敬堂教授
时间:2023年9月12日(周二) 10:30-11:30
地点:通博楼B412
主办单位:555000jc赌船 科研处
主讲人简介:Harry Zheng,英国帝国理工学院教授,从事随机控制、金融数学领域研究,在Operations Research, Mathematics of Operations Research, SIAM Journal on Control and Optimization, Finance and Stochastics,Mathematical Finance等top期刊发表数十篇论文。
内容提要:We present a continuous-time portfolio selection problem faced by an agent with S-shaped preference who maximizes the utilities derived from the portfolio's periodic performance over an infinite horizon. The periodic reward structure creates subtle incentive distortion. In some cases, local risk aversion is induced which discourages the agent from risk taking in the extreme bad states of the world. In some other cases, eventual ruin of the portfolio is inevitable and the agent underinvests in the good states of the world to manipulate the basis of subsequent performance evaluations. We outline several important elements of incentive design to contain the long-term portfolio risk. (Joint work with Alex S.L. Tse)我们提出了一个具有S型偏好的代理人所面临的连续时间投资组合选择问题。该代理人在无限期内最大化了从投资组合的周期性表现中获得的效用。周期性的回报结构造成了微妙的激励扭曲。在某些情况下,会引发局部风险厌恶,这会阻碍代理人在极端坏状态下承担风险。在其他一些情况下,投资组合的最终破产是不可避免的,并且代理人在好状态下不足投资,以操纵后续绩效评估的基础。我们概述了激励设计的几个重要元素,包含长期投资组合风险。