“…An important contribution of this model is that some of the determined positions of equilibrium do not fulfil the requirement that the two parties must choose the same strategy. This is a problem that usually arises in competition models between two players and for which different solutions have typically been found: restricting the positions of the players, studying mixed-strategy Nash equilibrium, weakening the definition of equilibrium, studying uncovered sets or considering valence issues, among others (see, for example, Abellanas et al, 2006Abellanas et al, , 2010Abellanas et al, , 2011Roemer, 2001;McKelvey, 1976;Stokes, 1963;Díaz-Báñez et al, 2011). The use of arcs of tolerance is a new solution to this problem, that has plausible interpretations in various areas aside from political competition.…”