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Purchasing Power Parity: The Irish Experience Re-visited

  • Derek Bond


    (University of Ulster)

  • Michael J. Harrison


    (Department of Economics, Trinity College Dublin)

  • Edward J. O'Brien


    (European Central Bank)

This paper looks at issues surrounding the testing of purchasing power parity using Irish data. Potential difficulties in placing the analysis in an I(1)/I(0) framework are highlighted. Recent tests for fractional integration and nonlinearity are discussed and used to investigate the behaviour of the Irish exchange rate against the United Kingdom and Germany. Little evidence of fractionality is found but there is strong evidence of nonlinearity from a variety of tests. Importantly, when the nonlinearity is modelled using a random field regression, the data conform well to purchasing power parity theory, in contrast to the findings of previous Irish studies, whose results were very mixed.

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Paper provided by Trinity College Dublin, Department of Economics in its series Trinity Economics Papers with number tep200615.

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Length: 30 pages
Date of creation: Nov 2006
Date of revision:
Handle: RePEc:tcd:tcduee:tep200615
Contact details of provider: Postal: Trinity College, Dublin 2
Phone: (+ 353 1) 6081325
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  4. Bond Derek & Harrison Michael J. & O'Brien Edward J., 2005. "Investigating Nonlinearity: A Note on the Estimation of Hamilton's Random Field Regression Model," Studies in Nonlinear Dynamics & Econometrics, De Gruyter, vol. 9(3), pages 1-43, September.
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