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Avaliação empírica do teorema da paridade coberta de juros entre o real brasileiro e o dólar americano (2008-2013) [Empirical Evaluation of the Covered Interest Parity between the Brazilian real and the US dollar (2008-2013)]

Author

Listed:
  • André Cieplinski

    (Siena)

  • Júlia Braga

    (UFF)

  • Ricardo Summa

    (UFRJ)

Abstract

Em contraste com a vasta evidência internacional em favor da validade da Paridade Coberta de Juros (CIP), a escassa literatura nacional encontra dificuldades para confirmar tal condição na economia brasileira. Neste trabalho, a validade da CIP entre o Real brasileiro e o Dólar americano é testada para o período de 2008 a 2013, a partir de dados diários. Para tanto, são exploradas as peculiaridades dos dados brasileiros e das variáveis utilizadas na estimação. Argumenta-se que a taxa de juros externa relevante para o teste da CIP no Brasil é aquela acessível aos agentes internos, cuja proxy é a taxa libor acrescida do EMBI+ brasileiro (o spread entre os títulos da dívida externa soberana brasileira e a taxa livre de risco americana). Por fim, a comparação desta taxa com a do cupom cambial é que constitui um fechamento tautológico para a paridade coberta e estabelece um método alternativo para validar a CIP, o qual corrobora os resultados dos testes diretos.

Suggested Citation

  • André Cieplinski & Júlia Braga & Ricardo Summa, 2018. "Avaliação empírica do teorema da paridade coberta de juros entre o real brasileiro e o dólar americano (2008-2013) [Empirical Evaluation of the Covered Interest Parity between the Brazilian real and t," Nova Economia, Economics Department, Universidade Federal de Minas Gerais (Brazil), vol. 28(1), pages 213-243, January-A.
  • Handle: RePEc:nov:artigo:v:28:y:2018:i:1:p:213-243
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    More about this item

    Keywords

    paridade coberta de juros; cupom cambial;

    JEL classification:

    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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