competition, of which the most common are the concentration ratio and the Herfindahl-Hirschman index. It is important to emphasize … that when calculating the value of these indices, the National Bank of Serbia most often uses the absolute value of assets … competition. Although market changes are reflected in a reduced number of banks while a change in the dispersion of market shares …

interlocking directorates between banks. Exploiting multiple firm-bank relationships to fully account for all unobserved …