Weather Shocks, Spot and Futures Agricultural Commodity Prices- An Analysis for India
AbstractWe analyze the impact of climate shocks on price formation in spot and futures market for food in India where until the recent introduction of commodity futures markets in 2005, the transmission of these shocks on short-term (spot) price movements was unclear. The existence of a futures market is expected to reduce risk, a major component in agricultural production as well as in price formation. Hitherto, the price discovery mechanism was weak and end price was expected to be different (mostly higher unless if some product prices are administered) from equilibrium price. In addition, this weak mechanism was expected to result in higher price volatility. Though the commodity futures market in India is nascent, we model transmission of weather shocks to future and spot prices using monthly data. Based on cointegration analysis, our results suggest strong cointegration between futures prices (based on MCX AGRI-future index) and spot prices (MCX AGRI-spot index) for commodities traded in futures markets. Our causality and impulse response results show futures prices Granger cause spot prices--a shock in futures prices appears to have an impact on spot prices at least for a five month period with maximum impact with a lag of one month. Changes in rainfall affect both futures and spot prices with different lags. Although there could be other factors that affect the futures prices, after controlling for fuel prices our results clearly show the transmission mechanism of weather shocks to prices. Further, with the help of smooth transition models, the study finds that the bivariate relationship between rainfall and prices of rice, wheat and pulses show some non-linearity with the structural change happening after the introduction of futures market. Also, this relation is found to be much stronger with the introduction futures market.
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Bibliographic InfoPaper provided by Centre for Development Economics, Delhi School of Economics in its series Working papers with number 219.
Length: 37 pages
Date of creation: Sep 2012
Date of revision:
Find related papers by JEL classification:
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
- Q10 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - General
- E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)
This paper has been announced in the following NEP Reports:
- NEP-AGR-2012-11-03 (Agricultural Economics)
- NEP-ALL-2012-11-03 (All new papers)
- NEP-ENV-2012-11-03 (Environmental Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Dong-Hyun Ahn & Jacob Boudoukh & Matthew Richardson & Robert F. Whitelaw, 2002. "Partial Adjustment or Stale Prices? Implications from Stock Index and Futures Return Autocorrelations," Review of Financial Studies, Society for Financial Studies, vol. 15(2), pages 655-689, March.
- Alquist, Ron & Kilian, Lutz, 2007.
"What Do We Learn from the Price of Crude Oil Futures?,"
CEPR Discussion Papers
6548, C.E.P.R. Discussion Papers.
- Ron Alquist & Lutz Kilian, 2010. "What do we learn from the price of crude oil futures?," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 25(4), pages 539-573.
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