return distribution的用法和样例：
例句
- Case study on transaction performance analyses the characters of abnormal return distribution of M &A companies and target companies.
通过交易绩效案例研究，分析了并购公司及目标公司超额收益分布的特征。 - This paper develops a trinomial option pricing model that incorporates the first four moments of the stock return distribution.
提出了一个将股票收益分布的头四个动差结合起来的三项式期权定价模型。
