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      Concorrência e as participações minoritárias entre firmas rivais

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          Abstract

          O objetivo deste trabalho é analisar quais os impactos sobre a concorrência de participações minoritárias entre firmas rivais. A aplicação do MHHI, índice de concentração recentemente proposto na literatura, indica que essas ligações estruturais podem causar efeitos adversos sobre a concorrência. Tais prejuízos se intensificam quanto maiores os market-shares e o poder de controle que a firma adquirente tem sobre a adquirida. Porém, quando essas ligações são ignoradas ou consideradas como fusões completas, tais prejuízos são subestimados ou superestimados, respectivamente. Assim, conclui-se que o MHHI é um indicador de concentração mais adequado na presença de participações minoritárias entre firmas rivais.

          Translated abstract

          The objective of this paper is to analyze the impacts of minority shareholdings among rival firms on competition. The application of MHHI (Modified Herfindahl Hirschman Index), a measure of market concentration recently proposed in the literature, shows that these structural links may cause adverse effects on competition. Such losses are intensified with increasing market-shares and the controlling power that the acquiring firm has on the acquired one. However when these links are ignored or taken as full mergers, such losses are underestimated or overestimated, respectively. Therefore we conclude that the MHHI would be the most adequate measure of market concentration in the presence of minority shareholdings among rival firms.

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          Most cited references14

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          Industrial Organization: A Strategic Approach

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            An empirical comparison of the performance of classical power indices'

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              The competitive effects of partial equity interests and joint ventures'

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                ecoa
                Economia Aplicada
                Econ. Apl.
                Faculdade de Economia, Administração e Contabilidade de Ribeirão Preto da Universidade de São Paulo (Ribeirão Preto )
                1980-5330
                March 2013
                : 17
                : 1
                : 71-89
                Affiliations
                [1 ] Fundação Getúlio Vargas Brazil
                [2 ] Universidade de São Paulo Brazil
                Article
                S1413-80502013000100004
                10.1590/S1413-80502013000100004
                f979e68f-f6da-4e31-9df0-0019a4de726e

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1413-8050&lng=en
                Categories
                ECONOMICS

                General economics
                Competition,Index of Concentration,Minority Shareholdings,Concorrência,Índices de Concentração,Participações Minoritárias

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