Financial Math Seminar

Systemic Risk under Extremes

  • 演讲者:刘佳俊(西交利物浦大学)

  • 时间:2022-09-15 10:00-11:00

  • 地点:腾讯会议ID 702-350-730,密码 220915

Abstract:Systemic risk (SR) is considered as the risk of collapse of an entire system, which has played a significant role in explaining the recent financial turmoils from the insurance and financial industries. Following recent studies of systemic risk in banking, finance, and insurance, we quantify systemic risk measures such as the measure of risk contagion, systemic expected shortfall (SES) and marginal expected shortfall (MES) in a general context of quantitative risk management and link them to a confidence level q∈(0,1). The limit behaviors of these systemic risk measures are investigated in this talk with the help of general notions of Extreme Value Theory (EVT). Numerical studies are provided to illustrate our theoretical findings. In the context of interest, the EVT approach has an immediate implication for determining the systemic importance under modern prudent regulatory frameworks.


报告人简介:Dr Jiajun Liu is an Assistant Professor in Actuarial Science at the Department of Financial and Actuarial Mathematics, Xi’an Jiaotong-Liverpool University. Dr Liu’s research focuses on the Interplay of insurance and financial risks, extreme dependence, and Heavy tailed distributions in insurance, finance, and quantitative risk management. His research has appeared in journals such as ASTIN Bulletin, Insurance: Mathematics and Economics, European Actuarial Journal, Stochastic Models, Journal of Industrial and Management Optimization and so on. Before joining XJTLU, Dr Liu earned his PhD in Mathematical Science (subtract: Actuarial Science and Statistics) from The University of Liverpool and a BSc from The University of Liverpool.