The aim of the present paper is to apply a Markov Switching model to check the characteristics of the Brazilian demand for imports equation based on annual data from 1947 to 2002 and on quarterly data from 1978:I to 2002:II. The results show that this model satisfactorily describes the...

This paper studies imperfect price competition between two intermediaries in an electronic business-to-business matching market with indirect network externalities. The intermediaries differ with regard to their ownership structure: an independent third party incumbent marketplace competes with...