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O objetivo desse trabalho é estudar a mudança na concentração dos mercados da indústria brasileira de mineração e transformação entre 1996 e 2003, realizando uma decomposição do índice de Herfindahl-Hirschman em variação da distribuição do tamanho e do número de empresas. Os resultados obtidos sugerem que, na média, a indústria sofreu reduzida mudança no período; contudo, apontam que, em um grupo de indústrias, as mudanças no nível de concentração foram substanciais. Indicam também que a maior responsabilidade por essas mudanças está associada a alterações na desigualdade do tamanho, apesar de o período ter presenciado um forte movimento de entrada de novas empresas em diversos segmentos industriais.
Abstract
The aim of this paper is to study the changes in market concentration in the Brazilian mining and manufacturing industries that took place from 1996 to 2003. The paper decomposes the HerfindahlHirschman index into variations in the size distribution and the number of firms. The results show that the average concentration did not change greatly in the period analyzed; however, a small group of industries showed significant differences in concentration. In these cases, changes in size distribution appear to have more importance than changes in the number of firms.
Key words: Market concentration. Brazilian industry. Herfindahl-Hirschman index; Brazil. Decomposition
Referências
BAJO, O.; SALAS, R. Inequality foundations of concentration measures. An application of the Hannah-Kay Indices. Spanish Economic Review, 4, p. 311-316, 2002.
BAJO, O. Decomposing changes in industry concentration. The Empirical Economic Letters, v. 3, n. 6, p. 311-319, 2004.
CURRY, B.; GEORGE, D. Industrial concentration: a survey. The Journal of Industrial Economics, v. 31, n. 3, p. 203-255, 1983.
DIXIT, A. The role of investment in entry deterrence. Economic Journal, 27, p. 95-106, 1980.
DONSIMONI, M. P.; GEROSKI, P.; JACQUEMIN, A. Concentration indices and market power: two views. The Journal of Industrial Economics, v. 32, n. 4, p. 419-434, 1984.
FERREIRA, P.; ROSSI, J. New evidence from Brazil on trade liberalization and productivity growth. International Economic Review, v. 44, n. 4, p. 1383-1405, 2003.
GORT, M. Analysis of stability and changes of market shares. The Journal of Political Economy, v. 71, n. 1, p. 51-63, 1965.
GORT, M.; KLEPPER, S. Time paths in the diffusion of product innovation. The Economic Journal, v. 92, n. 3, p. 630-653, 1982.
GROSSACK, I. Towards an integration of static and dynamics measures of industrial concentration. The Review of Economics and Statistics, v. 47, n. 3, p. 301-308, 1965.
HALL, M.; TIDEMAN, N. Measures of concentration. Journal of the American Statistical Association, v. 62, n. 317, p. 162-168, 1987.
HANNAH, L.; KAY, J. Concentration in modern industry. London: Macmillan, 1977.
HAY, D.; MORRIS, D. Industrial economics and organization: theory and evidence. Oxford: Oxford University Press, 1991.
LADERMAN, E. Changes in the structure of urban banking markets in the West. Economic Review of the Federal Bank of San Francisco, n. 1, p. 21-34, 1995.
LIEBESKIND, J. P.; OPLER, T. C.; HATFIELD, D. Corporate restructuring and the consolidation of US industry. The Journal of Industrial Economics, v. 44, p. 53-68, Mar. 1996.
MORTIMORE, M.; PERES, W. La competitividad industrial en América Latina y Caribe. Revista de la Cepal, 74, ago. 2001.
PRYOR, F. The evolution of competition in US manufacturing. Review of Industrial Organization, 9, p. 695-714, 1994.
PRYOR, F. New trends in US concentration. Review of Industrial Organization, 18, p. 301- 326, 2001.
PRYOR, F. News from the monopoly front: changes in industrial concentration, 1992-1997. Review of Industrial Organization, 20, p. 183-185, 2002.
ROCHA, F. Impactos das fusões e aquisições sobre a concentração industrial: observações preliminares sobre o caso brasileiro, 1996-2000. Economia Aplicada, v. 8, n. 2, p. 255- 275, 2004.
ROCHA, F; KUPFER, D. Structural changes and specialization in Brazilian industry: the evolution of the leading companies and the M&A process. Developing Economies, v. 40, n. 4, p. 497-521, 2002.
SCHERER, F.; ROSS, D. Market structure and economic performance. Boston: Houghon Mifflin, 1990.
SCHMALENSEE, R. Inter-industry studies of structure and performance. In: SCHMALENSEE, R.; WILLIG, R. Handbook of industrial organization. North-Holland, Amsterdam, 1989.
SCHOR, A. Productivity: competition, embodied technology and heterogeneous response to tariff reduction. Evidence from Brazilian manufacturing industries. Jun. 2003. NBER Working Paper, n. W10544. Disponível em: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=556531.
TIROLE, J. The theory of industrial organization. Cambridge: MIT Press, 1988.
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