Abstract Bertrand–Edgeworth competition has recently been analyzed under imperfect buyer mobility, as a game in which, once prices are chosen, static subgame (BS) is played where the buyers choose which seller to visit (see, e.g., Burdett et al. J Political Econ 109:1060–1085, 2001). Our paper considers symmetric duopoly two play two-stage BS of information after price setting. An “assessment e...