We consider a two-tier industry with an upstream monopolist trading, via interim observable linear tariff contracts, with two differentiated goods downstream of Stackelberg competitors. The upstream monopolist owns a symmetric minority share on both downstream customers, i.e., there is passive...

We examine the effects of overlapping ownership in a Cournot oligopoly with free entry. If firms develop overlapping ownership only after entering, then an increase in the degree of overlapping ownership spurs entry but causes price to increase and total surplus to fall. Also, entry is never...