Razzolini, Tiziano - In: Applied Economics Letters 16 (2009) 2, pp. 193-197
This note provides a formula to compute the value of the mean utilities as a function of market shares in Bresnahan et al.'s (1997) production differentiation models (PD-GEV) (1997). Such a formula avoids the time consuming contraction mapping procedure suggested by Berry et al. (1995).