In this paper we study the implications of service level guarantees (SLGs) in a model of oligopoly competition where … oligopoly models of price competition, greatly simplifying the analysis of this otherwise complex competitive scenario. Notably …

prices and advertising tariffs. We build on the work of Gabszewicz, Laussel and Sonnac (2001, 2002), whose model we take as …), cover prices are positive and the minimal differentiation outcome does not depend on the size of the advertising market. We … to cooperate in setting cover prices and advertising tariffs but not the editorial line …