Received literature have shown that if competing networks are restricted to linear and uniform pricing, high access charges can facilitate collusion; a result that breaks down if we allow for non-linear and discriminatory pricing, however. In this paper we add unbalanced calling pattern to the...

The article offers a complementary theory for conglomerate mergers. Conglomerate mergers take place to achieve control over distribution channels that otherwise could be used by rival entrants. An entrant with a very differentiated product is accommodated, and an entrant with a close substitute...

I analyse producers' choice of optimal distribution systems ina setting with two producers of differential products and two identical retailers.

Retail chains are observed in many industries. The question addressed here is whether retail chains can exploit buyer power by excluding some brands. In a theoretical model with two differentiated producers and a single retailer, we show that a retailer will require exclusivity (exclude a brand)...

We study a setting where the opportunism or commitment problem identifed by Hart and Tirole (1990) may arise. An upstream monopolist may sell its product to two differentiated downstream retailers. Contract unobservability induces the manufacturer and each retailer to free-ride on margins earned...

This paper investigates a retailer's decision to introduce a private label and asks how the retailer's access to a private label may affect the pricing of substitute national brands. We consider a model with two vertically differentiated national brand manufacturers that negotiate sequentially...

We examine the optimal regulation of agricultural markets when farmers have organized their activity in a cooperative which is the monopoly supplier of an upstream product and which competes with a single rival firm in selling a homogenous downstream product. The rival's marginal cost is private...

It is well-known that switching costs may facilitate monopoly pricing in a market with price competition between two suppliers of a homogenous good, provided the switching cost is above some critical level. With heterogeneous consumers monopoly pricing entails second degree price dierentiotation...

We examine how a merger affects wages of unionized labour and, in turn, the profitability of a merger under both Cournot and Bertrand competition. If unions are plant-specific, we find that a merger is more profitable than in a corresponding model with exogenous wages. In contrast to the...