This paper aims at investigating if the conventional wisdom, that a decrease in the degree of product differentiation (which implies increasing competition) always reduces firms’ profits, remains true in a differentiated duopoly model with decentralized, or firm-specific, monopoly unions. In...

This paper compares Cournot and Bertrand equilibria in a differentiated duopoly (with imperfect substitutes), total wage bill maximizing unions and labour decreasing returns. It is shown that the standard result, that equilibrium profits are always higher under Cournot, may be reversed even for...

This paper analyses the effects of a downstream merger in a differentiated duopoly under price competition and plant-specific unions. We show, in contrast with the preceding literature, that the standard welfare results may be reversed: a downstream merger may increase consumer surplus and...

Can a merger from duopoly to monopoly be detrimental for profits? This paper deals with this issue by focusing on the interaction between decreasing returns to labour (which imply firms’ convex production costs) and centralised unionisation in a differentiated duopoly model. It is pointed out...

This paper analyses the effects of a downstream merger in a differentiated duopoly under price competition and firm-specific unions. In contrast with the acquired wisdom, we show that a downstream merger may increase overall welfare when products are sufficienly substitutes and unions are...

In this paper, we aim at investigating if the conventional wisdom, that an increase of competition linked to a decrease in the degree of product differentiation always reduces firms’ profits, remains true in a unionized duopoly model with labour decreasing returns. In this context, mixed...

Can a merger from duopoly to monopoly be detrimental for profits? This paper deals with this issue by focusing on the interaction between decreasing returns to labour (which imply firms’ convex costs) and centralised unionisation. Firstly, it is highlighted that a wage “non-rigidity”...