the monopoly and from the welfare points of view. It is shown that in the two-type consumer case when the monopoly is … concerned, the price-quantity packages strategy dominates two-part tariff pricing. However, the welfare may be higher under two …

A manufacturer contracting secretly with several downstream competitors faces an opportunism problem, preventing it … from exerting its market power. In an infinitely repeated game, the opportunism problem can be relaxed. We show that the …

We analyze a vertical structure with an upstream monopoly and two downstream retailers. Demand is uncertain but each … the retailers but is likely to be detrimental for social welfare. …

efficiency gains can overcome its anti-competitive effects in terms of welfare, we show that when firms merge usually both of the …

vertical relations, a manufacturers merger is harmful to consumers and welfare. …