11. Dynamics of Inflation "Herding": Decoding India's Inflationary Process
- Author:
- Urjit R. Patel and Gangadhar Darbha
- Publication Date:
- 01-2012
- Content Type:
- Working Paper
- Institution:
- The Brookings Institution
- Abstract:
- Compared to immediately preceding years, that is, its own recent history, India's inflation became unhinged (thereby reversing creditable performance) from as far back as 2006. The paper puts forward an empirical framework to analyze the time series and cross-sectional dynamics of inflation in India using a large panel of disaggregated sector prices for the time period, 1994/95 to 2010/11. This allows us to rigorously explore issues that have been, at best, loosely posed in policy debates such as diffusion or comovement of inflation across sectors, role of common and idiosyncratic factors in explaining variation, persistence, importance of food and energy price changes to the overall inflation process, and contrast the recent experience with the past. We find, interalia, that the current period of high inflation is more cross-sectionally diffused, and driven by increasingly persistent common factors in non-food and non-energy sectors compared to that in the 1990s; this is likely to make it more difficult for anti-inflationary policy to gain traction this time round compared to the past. The paper has also introduced a novel measure of inflation, viz., Pure Inflation Gauges (PIGs) in the Indian context by decomposing price movements into those on account of: (1) aggregate shocks that have equiproportional effects on all sector prices; (2) aggregated relative price effects; and (3) sector-specific and idiosyncratic shocks. If PIGs, in conjunction with our other findings, for example, on persistence had been used as a measure of underlying (pure) inflationary pressures, the monetary authorities may not have been sanguine regarding the timeliness of initiating anti-inflationary policies.
- Topic:
- Development, Economics, Industrial Policy, International Trade and Finance, and Monetary Policy
- Political Geography:
- South Asia and India