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Testing for Explosive Behaviour in Relative Inflation Measures: Implications for Monetary Policy

Author

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  • Vipin Arora
  • Pedro Gomis-Porqueras
  • Shuping Shi

Abstract

In this paper we test for large deviations in headline measures of the price level relative to core measures using the recently proposed test of Phillips et al. (2011a). We find evidence of explosive behaviour in the headline price index of personal consumption expenditures (PCE) relative to the core PCE (less food and energy prices) on three occasions from 1982-2010. Two of these episodes correspond to energy supply shocks (OPEC price collapse of 1986 and Hurricane Katrina). The third one is during March 2008 through September 2008 which seems to be driven by both food and energy prices as these indices exhibit explosive behaviour. We also find evidence suggesting that inflation expectations behave differently under normal and explosive periods. In particular, unemployment and interest rates also help predict inflation expectations during explosive episodes relative to normal times. Furthermore, explosive episodes in the relative measure between headline and core inflation is found to be more important than the relative volatile periods implied by a Markov-switching model when studying inflation expectations. The findings of this paper suggest that explosive behaviour of headline versus core PCE should be taken into account when conducting monetary policy as it is a key determinant in consumers’ inflation expectations.

Suggested Citation

  • Vipin Arora & Pedro Gomis-Porqueras & Shuping Shi, 2011. "Testing for Explosive Behaviour in Relative Inflation Measures: Implications for Monetary Policy," Monash Economics Working Papers 37-11, Monash University, Department of Economics.
  • Handle: RePEc:mos:moswps:2011-37
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    References listed on IDEAS

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    1. N. Gregory Mankiw & Ricardo Reis & Justin Wolfers, 2004. "Disagreement about Inflation Expectations," NBER Chapters,in: NBER Macroeconomics Annual 2003, Volume 18, pages 209-270 National Bureau of Economic Research, Inc.
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    Citations

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    Cited by:

    1. Benjamin Wong, 2015. "Do Inflation Expectations Propagate the Inflationary Impact of Real Oil Price Shocks?: Evidence from the Michigan Survey," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 47(8), pages 1673-1689, December.
    2. Chen, Mei-Ping & Lin, Yu-Hui & Tseng, Chun-Yao & Chen, Wen-Yi, 2015. "Bubbles in health care: Evidence from the U.S., U.K., and German stock markets," The North American Journal of Economics and Finance, Elsevier, vol. 31(C), pages 193-205.
    3. repec:mth:jsss88:v:3:y:2016:i:2:p:28-39 is not listed on IDEAS
    4. Robert G Murphy & Adam Rohde, 2018. "Rational Bias in Inflation Expectations," Eastern Economic Journal, Palgrave Macmillan;Eastern Economic Association, vol. 44(1), pages 153-171, January.
    5. Miguel Saldarriaga & Pablo del Aguila & Kevin Gershy-Damet, 2017. "Has inflation targeting anchored inflation expectations? Evidence from Peru," Working Papers 2017-103, Peruvian Economic Association.
    6. Wen-Yi Chen & Yia-Wun Liang & Yu-Hui Lin, 2016. "Is the United States in the middle of a healthcare bubble?," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 17(1), pages 99-111, January.
    7. Wen-Yi Chen & Yia-Wun Liang & Yu-Hui Lin, 2016. "Is the United States in the middle of a healthcare bubble?," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 17(1), pages 99-111, January.
    8. Karolina Tura-Gawron & Maria Siranova & Karol Fisikowski, 2018. "ARE CONSUMER INFLATION EXPECTATIONS AN INTERNATIONAL PHENOMENON? Results of spatial panel regressions models," GUT FME Working Paper Series A 50, Faculty of Management and Economics, Gdansk University of Technology.

    More about this item

    Keywords

    Explosive behaviour; core inflation; relative measure; inflation expectations;

    JEL classification:

    • C5 - Mathematical and Quantitative Methods - - Econometric Modeling
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation

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