We analyze the competitive effects of backward vertical integration when firms exert market power upstream and compete à la Cournot downstream. Contrasting with previous literature, a small degree of vertical integration is always procompetitive because efficiency gains dominate foreclosure...

Theoretical reasoning shows that spatial effects of transport cost reductions may crucially depend on market structures in the tradables sector (degree of market power, strength of economies of scale, free or no free entry). The aim of this paper is to compare empirically the effects of...

Two-sided network effects in card payment systems are analysed under different market structures, e.g., competition, one-sided monopoly, bilateral monopoly and duopoly; with and without an interchange fee; for the so-called Baxter s case of non-strategic merchants. A partial ranking of market...

State-owned enterprises (SOEs) are often vertically integrated firms which operate in key industries like transport, telecommunication and power generation. They provide an infrastructure and invest in its quality. We discuss the effects of liberalization and their privatization which can be...