An application of a new seasonal unit root test to inflation

Paresh Kumar Narayan, Stephan Popp

Research output: Contribution to journalArticleResearchpeer-review

16 Citations (Scopus)

Abstract

In this paper, we apply the modified seasonal unit root test with seasonal level shifts at unknown time proposed by Popp (2007) to the G7 inflation rate. We also study the power properties of this test and generate critical values for a range of different break points and sample sizes. We find that there is a non-seasonal unit root in Canada's inflation rate, a semi-annual unit root in Germany's inflation rate, and no seasonal unit root at the annual frequency for any of the G7 countries.

Original languageEnglish
Pages (from-to)707-716
Number of pages10
JournalInternational Review of Economics and Finance
Volume20
Issue number4
DOIs
Publication statusPublished - Oct 2011
Externally publishedYes

Keywords

  • Inflation rates
  • Seasonal unit root tests
  • Structural breaks
  • The G7 countries

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