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Causality between wholesale price and consumer price indices in India: An empirical investigation in the frequency domain


  • Aviral Kumar Tiwari


Purpose - The purpose of this study is to attempt to analyze Granger causality in the frequency domain framework between producers' prices measured by wholesale price index (WPI) and consumers' prices measured by consumer price index (CPI) in the context of India. Design/methodology/approach - Analysis was carried out in the framework of time series and for analysis Johansen and Juselius's maximum likelihood approach for cointegration was applied after confirming that variables are integrated of order one, i.e. I(1) through the Lee and Strazicich unit root test. Finally, Granger causality was tested in the frequency domain by utilizing a recently developed approach of Lemmens Findings - The paper finds that CPI Granger cause WPI at a lower, intermediate as well as higher levels of frequency, reflecting very long-run, intermediate as well as short-run cycles. By contrast WPI Granger cause CPI at 5 percent level of significance was found at intermediate frequencies, reflecting significant intermediate cycles. Research limitations/implications - The study reveals that CPI is a leading indicator of producers' prices and inflation (i.e. WPI). This gives an indication that Indian policy analysts ought to control for factors affecting CPI in order to have control on WPI since WPI is used for making various macroeconomic indicators in real terms. Originality/value - The main contribution of the paper is to show the evidence of bidirectional causality between WPI and CPI. Furthermore, use of a recent approach developed by Lemmens

Suggested Citation

  • Aviral Kumar Tiwari, 2012. "Causality between wholesale price and consumer price indices in India: An empirical investigation in the frequency domain," Indian Growth and Development Review, Emerald Group Publishing, vol. 5(2), pages 151-172, September.
  • Handle: RePEc:eme:igdrpp:v:5:y:2012:i:2:p:151-172

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    Cited by:

    1. Tiwari, Aviral Kumar & Mutascu, Mihai & Andries, Alin Marius, 2013. "Decomposing time-frequency relationship between producer price and consumer price indices in Romania through wavelet analysis," Economic Modelling, Elsevier, vol. 31(C), pages 151-159.
    2. Tiwari, Aviral Kumar & Suresh K.G., & Arouri, Mohamed & Teulon, Frédéric, 2014. "Causality between consumer price and producer price: Evidence from Mexico," Economic Modelling, Elsevier, vol. 36(C), pages 432-440.


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