A paridade do poder de compra no longo prazotestes em moedas da América Latina (1900-2006)
Jancsó, Constantin
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Resumo
Purchasing power parity (PPP) was formally proposed as a theoretical model to explain the behavior of the exchange-rate by Gustav Cassel almost one century ago. Obtaining empirical evidence to support the validity of PPP, however, has traditionally been a controversial issue. Nevertheless, a consensus slowly appears to be emerging from literature, suggesting that PPP holds, but only in the long run. Although PPP is not useful to predict the behavior of the exchange-rate in a time frame that would make it a useful application in the context of the foreign exchange market, it is widely used in applied macroeconomics, often as a long-term restriction for the behavior of the exchange-rate in general equilibrium models. In any case, as Dornbush and Krugman remind us, “Under the skin of any international economist lies a deep-seated belief in some variant of the PPP theory of the exchange rate”. This dissertation proposes to assess the evidence for PPP in more than a century of data for the largest Latin American economies. In the empirical literature, most of the empirical work testing the validity of PPP in the long run uses data from the developed countries (in part, simply because they are more readily available). Taylor (2002) includes Argentina, Brazil and Mexico in his sample of 20 developed and developing nations. Other studies focus specifically on the data of one or the other economy in Latin America (for example, Délano 1998 tests the PPP hypothesis using data from Chile between 1835 and 1995). But there has been little work done on this field focusing specifically on data from Latin America. Following the usual methodology described in literature – unit root tests to assess whether the real exchange rate is stationary, applying error correction mechanisms and cointegration tests – the evidence obtained from Latin American data reinforces the thesis that PPP holds in the long run.
Ficha do documento
- Tipo
- Dissertação
- Ano
- 2008
- Instituição
- Fundação Getulio Vargas
- Fonte
- Repositório da FGV
- Idioma
- Português
- Acesso
- Não informado
- Identificador
- oai:repositorio.fgv.br:10438/2066
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