Firm Size Dynamics of Industries: Stochastic Growth Processes, Large Fluctuations, and the Population of Firms as a Complex System

This study was conducted to better understand
the dynamic nature of the growth and decline of firms
in various size classes and industries. Firm growth rates do not fit the often assumed normal distribution. As a result, there are more slow-growing firms, more fast-growing firms, and fewer medium growing
firms than are generally modeled by economists.