Miravete, Eugenio J.; Röller, Lars-Hendrik - 2004
nonlinear pricing competition. We estimate these price-cost margins using quarterly data from the early U.S. cellular telephone … industry between 1984 and 1988. Our results indicate that the margins are increased under duopoly, due to a significant … in the low-end user segment, relative to high-end users. In that sense the benefits of competition, which are largely due …