Risk-neutral world的意思|示意

The world of risk neutral is an imaginary world in which the expected return rate of all risky assets equals to risk-free return rate.

风险中性的世界是一个假想的世界，在风险中性世界中所有风险资产的预期收益率等于无风险收益率。

By applying the martingale pricing method in a world in which the logarithmic normal diffuse processes are expressed risk-neutral, we get European exchange rate call option related with the stock.

将对数正态扩散过程表达的随机过程转化为风险中性，并在此条件下用鞅定价方法推导出与股票相关联的欧式汇率买入期权的价格公式。