Golan, Amos; Judge, George G.; Perloff, Jeffrey M. - Department of Agricultural and Resource Economics, … - 1995
Using a maximum entropy technique, we estimate the market shares of each firm in an industry using the available government summary statistics such as the four-firm concentration ratio (C4) and the Herfindahl-Hirschmann Index (HHI). We show that our technique is very effective in estimating the...