| Popis: |
We often find skewed distributions such as the power law distribution and the lognormal distribution in studies of complex systems. Emergence of lognormal distribution is explained based on multiplicative stochastic processes, while power-law distribution can be explained by the multiplicative stochastic process with a modification. Thus, multiplicative process and lognormal distribution can serve as a starting point to discuss the statistical aspect of complex systems. In this paper, we show some economic and social phenomena in which lognormal and its related distributions can be observed to discuss their origins in terms of multiplicative growth. |
