While the received literature on unionized duopolies emphasized the key role of inter-union competition in reversing the standard Cournot-Bertrand profit ranking, in this paper such issue is studied in a framework with labour decreasing returns and a centralized (industry-wide) union, hence in a...

This paper compares Cournot and Bertrand equilibria in a differentiated duopoly, 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 a fairly low degree of...