研究结果表明，这类产品在定价时可以看作由一个具有保底收益的投资基金与一个基于死亡赔付的欧式熊市价差期权组合（EBSOP）构成，该期权组合的价值通常不容忽视；
The results show that such kind of contract is composed with a guaranteed investment fund and a European bear spreads option package ( EBSOP ) whose value can not be ignored .
熊市价差期权