Alegria, Carlos; Schaeck, Klaus - In: Finance Research Letters 5 (2008) 1, pp. 59-67
Assuming a Pareto-type distribution of bank sizes, we investigate the effect of changes in Zipf's exponent ([alpha]) and the sample size on the behavior of different concentration indices, such as the 3-bank concentration ratio, the Herfindahl-Hirschman index and the top 5%-concentration ratio....