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Relative importance of sectoral and aggregate sources of price changes

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  • Hiranya Nath

Abstract

This paper estimates a dynamic common factor model to assess relative importance of the aggregate and the sector-specific factors that determine changes in the prices of individual products. It also examines how aggregate price changes are affected by these factors. Two different specifications of the model are estimated: the baseline model with one aggregate factor, and a second specification with two aggregate factors. In the one-actor model, the aggregate factor contributes little to the movements of changes in prices, mostly of nondurable goods whereas it seems to have important contributions to the movements of changes in prices of commodity groups mainly used as intermediate or capital goods. In the specification with two aggregate factors, the additional factor has significant effects on changes in prices of 'farm products' and 'processed foods and feeds' only. Forecast-error variance decompositions of both aggregate and disaggregate price changes suggest that sectoral factors account for most of the variability at short horizons while the contributions of the aggregate factors increase as the time horizon lengthens. The results also show that sectoral factors are not only important for relative price changes but also have significant impact on aggregate inflation. The estimated common factors have statistically significant correlations with money growth and changes in the unemployment rate.

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  • Hiranya Nath, 2004. "Relative importance of sectoral and aggregate sources of price changes," Applied Economics, Taylor & Francis Journals, vol. 36(16), pages 1781-1796.
    • Handle: RePEc:taf:applec:v:36:y:2004:i:16:p:1781-1796
    DOI: 10.1080/0003684042000236048
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    References listed on IDEAS

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    Cited by:

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    2. Sartaj Rasool Rather & S. Raja Sethu Durai & M. Ramachandran, 2015. "Price Rigidity, Inflation and the Distribution of Relative Price Changes," South Asian Journal of Macroeconomics and Public Finance, , vol. 4(2), pages 258-287, December.
    3. J. Ulyses Balderas & Hiranya Nath, 2007. "Inflation and relative price variability in Mexico: the role of remittances," Applied Economics Letters, Taylor & Francis Journals, vol. 15(3), pages 181-185.
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    5. Rather, Sartaj Rasool & Durai, S. Raja Sethu & Ramachandran, M., 2014. "Inflation and relative price variability: Evidence for India," Journal of Asian Economics, Elsevier, vol. 30(C), pages 32-41.
    6. Sartaj Rasool Rather & Raja Sethu Durai & Muthia Ramachandran, 2018. "Inflation and the Dispersion of Relative Prices: A Case for 4 % Solution," Australian Economic Papers, Wiley Blackwell, vol. 57(1), pages 81-91, March.

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