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Estudios de economía
versão On-line ISSN 0718-5286
Resumo
CONTRERAS, Roberto; GEORGANTZIS, Nikolaos e GINES, Miguel. COLLUSION IN A BERTRAND DUOPOLY MODEL WITH DECREASING RETURNS AND PRODUCT DIFFERENTIATION. Estudios de Economía [online]. 2008, vol.35, n.1, pp.19-31. ISSN 0718-5286. http://dx.doi.org/10.4067/S0718-52862008000100002.
We study cartel stability in a differentiated price-setting duopoly with returns to scale. We show that a cartel may be equally stable in the presence of lower differentiation, provided that the decreasing returns parameter is high. In addition we demonstrate that for a given factor of discount, there are technologies that can have decreasing returns to scale where the cartel always is stable independent of the differentiation degree.
Palavras-chave : Collusion; product differentiation; decreasing returns to scale.