Reinsurance Contract 再保险合同
Speculator 投机者
Uncorrelated 不相关
Longevity Derivatives （人寿衍生品？）
DEFINITION of Longevity Derivatives
Longevity derivatives are a class of securities that provide a hedge against parties(对冲方) that are exposed to longevity risks through their businesses, such as pension plan managers and insurers. These types of derivatives are designed to have increasingly high payouts as a selected population group lives longer than was originally expected or calculated.
（所以是来做风险对冲的？）
Longevity bond 长寿债券(Longevity Derivatives的一种)
