skew distribution

skew dis·tri·bu·tion

an asymmetric frequency distribution; in biology and medicine it is usually a lognormal distribution.
References in periodicals archive ?
The original explanation of skew distribution of the return is based on asymmetry of fluctuation, which is mainly leverage effect and feedback effect of fluctuation, but the explanations had not been widely supported by empirical study.
When and Yang held that risk attitude is an important reason for the skew distribution of the return, and the speculative behaviors on the market can lead to positive skewness.