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精算论坛讲座 第106期-徐雅静(9月8日)

2017年09月07日 来源: 中国精算研究院
教育部人文社科重点研究基地中央财经大学中国精算研究院学术活动
讲座题目:Cohort Models of Mortality and Development of A Tradable Longevity Market
 
摘要:In promoting the development of a liquid market for trading longevity risk, the primary focus of this study is to develop required methodologies and benchmarks for such a market. Specifically, this thesis consists of three parts.  The first part proposes and calibrates a multi-cohort mortality model with a focus on financial applications. The proposed mortality model employs modelling techniques from interest rate theory, and can serve for the valuation of longevity-linked products. Furthermore, the model has many appealing features: i) it is a multi-cohort model that describes the whole mortality surface, ii) it captures cohort effects and allows for imperfect correlation between different cohorts, iii) it fits historical data at pension-related ages very well, and iv) it performs well in generating future survival curves.  The second part develops value-based longevity indexes for multiple countries and assesses the basis risk of index-based longevity hedging implementation. A joint affine term structure mortality model is proposed for the construction of longevity indexes for different cohorts in domestic and foreign countries. Furthermore, we examine basis risk in index-based longevity hedges using a graphical risk metric which provides visual interpretations on the interplay between the portfolio to be hedged and the hedging instruments.  Finally, with the mortality model proposed in the first part, the third part investigates how to calibrate the market price of longevity risk and its application to longevity bond option pricing. The model is extended to incorporate market prices of longevity risk corresponding to each model factors. We develop a new framework for the pricing and risk analysis of longevity-linked products allowing for stochastic longevity risk and interest rate factors. The proposed affine modelling framework can be used to price longevity-linked securities and derivatives, in particular, we derive prices for European options on longevity zero-coupon bonds.
 
主讲人:徐雅静,澳大利亚新南威尔士大学精算专业博士,北美精算师协会准精算师。主要研究方向包括:死亡率模型,长寿指数和长寿风险定价。
Dr. Yajing Xu has recently completed the PhD program at the school of Risk and Actuarial Studies of the University of New South Wales in the area of longevity risk management. Her main research interests include longevity risk modelling, the development of longevity indices and longevity-linked derivatives pricing. 
She holds the designation of ASA (Associate of the Society of Actuaries) and is currently on the Quantitative Finance and Investment track to fellowship.
 
时间:2017年9月8日 上午10:00—12:00
 
地点:学术会堂南楼506  (精算研究院会议室)
 
欢迎各位老师和同学积极参加!

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