Externalidade de rede e a telefonia fixa-móvel: um estudo sobre o poder de mercado da telefonia móvel e a demanda por serviços de telecomunicações

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

This piece of work develops a theoretical model of the fixed-mobile telephony market, trying to analyze the characteristic of consumers externality (network externality) existent in the network industries, as well as the specific phenomenon of bottleneck in that market, in which the cellulars firms have certain domain over their costumers. This market power leads the cellulars firms to maximize their marginal lucrativity through the establishment of access prices on the monopoly level, under the differentiated fixed-mobile prices. Due to network externality, it has been shown that the profit variation in relation to the number of subscribers is strictly positive, enabling the firms to establish a subsidy to their customers, aiming at conquering them. Thus, the greater the market share of cellulars firms, the greater will the positive profit variation per subscribe be. In addition, it has been pointed out that, independently of the social policy adopted, the social welfare is maximized when the access prices converge to their marginal costs.

ASSUNTO(S)

mercado de telefonia fixa-móvel preço de acesso subsídios network externality cellular telephony network industry, subsidy economia demand on telecommunication services externalidade de rede fixed-mobile telephony market telefonia celular indústria de rede poder de monopólio monopoly power tarifa de interconexão demanda por serviços de telecomunicações access prices bottleneck

ACESSO AO ARTIGO

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