Empirical evidence against the exchange rate anomaly: the Australian case

Autores

  • Luis A. Gil-Alana University of Navarre Autor

DOI:

https://doi.org/10.1590/S0101-41612006000200002

Palavras-chave:

taxa a vista e taxa futura, integração fracionária, memória longa

Resumo

Embora haja um acordo difundido de que o ponto logarítmico e as taxas para frente são ambas integradas de variáveis da ordem um (I(1)), de modo que seus retornos correspondentes sejam I(0) estacionário, tem-se reivindicado recentemente que elas podem ser memória longa. Neste artigo, examinamos esta hipótese por meio do uso de técnicas fracionárias de integração. Os resultados baseados em testes paramétricos e semiparametricos mostram que embora os graus fracionários de integração sejam alternativas plausíveis, os intervalos de confiança incluem o caso da raiz unitária em ambas as séries. Além disso, a hipótese de não viés da taxa para frente como um preditor para a taxa a vista futura não pode ser rejeitada para o caso australiano.

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Publicado

01-06-2006

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Como Citar

Gil-Alana, L. A. (2006). Empirical evidence against the exchange rate anomaly: the Australian case . Estudos Econômicos (São Paulo), 36(2), 237-250. https://doi.org/10.1590/S0101-41612006000200002