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Misspecification versus bubbles in hyperinflation data: Comment

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  • Engsted, Tom

    (Department of Finance, Aarhus School of Business)

Abstract

In this comment I critically review some of the claims and analyses made by Hooker (2000) in his study of the Cagan hyperinflation model. I argue that: i) contrary to what Hooker claims, cointegration tests can be used to discriminate between bubbles and no bubbles; ii) contrary to Hooker's claim, his empirical results for the interwar European hyperinflations do not general imply that the Cagan model is misspecified; iii) although Hooker's analyses build directly on the Durlauf and Hall (1989) methodology, he neglects an important part of that methodology, namely the measurement of the magnitude of noise. I present such measures, and together with reported cointegration tests the noise measure help reinterpreting Hooker's empirical results.

Suggested Citation

  • Engsted, Tom, 2002. "Misspecification versus bubbles in hyperinflation data: Comment," Finance Working Papers 02-2, University of Aarhus, Aarhus School of Business, Department of Business Studies.
    • Handle: RePEc:hhb:aarfin:2002_002
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    2. Hing Chan & Kai Woo, 2006. "Bubbles detection for inter-war European hyperinflation: A threshold cointegration approach," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 30(2), pages 169-185, June.
    3. Hooker, Mark A., 2003. "Misspecification and bubbles in hyperinflation data: reply to Engsted1," Journal of International Money and Finance, Elsevier, vol. 22(4), pages 453-458, August.

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