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Estimando o Desalinhamento Cambial Brasileiro: Uma Análise de Robustez a Partir do Modelo Global com Mecanismo de Correção de Erros

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  • Emerson Fernandes Marçal

Abstract

O presente trabalho tem por objetivo comparar duas metodologias para cálculo de desalinhamento cambial. A primeira metodologia consiste na estimação do desalinhamento cambial a partir de técnicas multivariadas de séries de tempo nas quais apenas variáveis associadas ao país em análise são utilizadas na modelagem. A segunda metodologia consiste na utilização de fatores globais, como sugerido pelo Modelo Vetorial Autorregressivo com Correção de Erros Global (VAR-MCEG). O caso brasileiro é analisado a partir das duas metodologias. Os resultados sugerem que as estimativas podem diferir em magnitude para diferentes períodos. Ambas as metodologias sugerem que o canal pelo qual termos de troca afetam a taxa de câmbio real brasileiro é indireto. Melhorias de termos de troca levam a uma melhora da posição internacional de investimento e, logo, geram uma valorização da moeda brasileira. Os resultados da metodologia Global Vector Error Correction Model (GVECM) sugerem que a taxa de câmbio real brasileira é afetada no longo prazo pelo nível de taxa de câmbio real dos seus parceiros comerciais. This paper aims to compare two different methodologies to estimate exchange rate misalignment. The first methodology consists in using multivariate time series techniques and a model with domestic variables. The second methodology consists in Pesaran’s Global Vector Error Correction Model with global factors (GVECM). The Brazilian case is analyzed using these two methodologies. The results of exchange misalignment estimative are different particularly in their magnitude terms not in their signs. Both methodologies suggests that the channel throughout terms of trade affect exchange rate is indirect. Improvements in Brazilian terms of trade induces improvement in net foreign investment position by affecting current account result. These improvements also induce a real exchange rate appreciation in the long run. In recent period this channel appears to play an important role in explaining Brazilian exchange rate fundamental improvement.The results from GVECM suggest that the level of Brazilian real exchange rate is linked to the level of real exchange of its main trading partners.

Suggested Citation

  • Emerson Fernandes Marçal, 2013. "Estimando o Desalinhamento Cambial Brasileiro: Uma Análise de Robustez a Partir do Modelo Global com Mecanismo de Correção de Erros," Discussion Papers 1865, Instituto de Pesquisa Econômica Aplicada - IPEA.
  • Handle: RePEc:ipe:ipetds:1865
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