Cifarelli, Giulio and Paladino, Giovanna (2011): Hedging vs. speculative pressures on commodity futures returns.
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This study introduces a non linear model for commodity futures prices which accounts for pressures due to hedging and speculative activities. The linkage with the corresponding spot market is considered assuming that a long term equilibrium relationship holds between futures and spot pricing. Over the 1990-2010 time period, a dynamic interaction between spot and futures returns in five commodity markets (copper, cotton, oil, silver, and soybeans) is empirically validated. An error correction relationship for the cash returns and a non linear parameterization of the corresponding futures returns are combined with a bivariate CCC-GARCH representation of the conditional variances. Hedgers and speculators are contemporaneously at work in the futures markets, the role of the latter being far from negligible. In order to capture the consequences of the growing impact of financial flows on commodity market pricing, a two-state regime switching model for futures returns is developed. The empirical findings indicate that hedging and speculative behavior change across the two regimes, which we associate with low and high return volatility, according to a distinctive pattern, which is not homogeneous across commodities.
|Item Type:||MPRA Paper|
|Original Title:||Hedging vs. speculative pressures on commodity futures returns|
|Keywords:||Commodity spot and futures markets; dynamic hedging; speculation; non linear GARCH; Markov regime switching|
|Subjects:||G - Financial Economics > G1 - General Financial Markets > G15 - International Financial Markets
Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics > Q4 - Energy > Q47 - Energy Forecasting
G - Financial Economics > G1 - General Financial Markets > G13 - Contingent Pricing; Futures Pricing
|Depositing User:||Giulio Cifarelli|
|Date Deposited:||19. Jan 2011 17:21|
|Last Modified:||12. Feb 2013 14:59|
Achen C. Interpreting and Using Regression. Thousand Oaks, CA: Sage Publications. (1982)
Ai, C., A. Chatrath, and F. Song. “On the Comovement of Commodity Prices”. American Journal of Agricultural Economics 88 (2006): 574–588.
Alexander, C., and A. Barbosa. “Effectiveness of Minimum Variance Hedging”. Journal of Portfolio Management 33 (2007): 46-59.
Alizadeh, A., and N. Nomikos. “A Markov Regime Switching Approach for Hedging Stock Indices”. Journal of Futures Markets 24 (2004): 649-674.
Baillie, R., and R. Myers. “Bivariate GARCH Estimation of the Optimal Commodity Futures Hedge”. Journal of Applied Econometrics 6 (1991): 109-124.
Benninga, S., R. Eldor, and I. Zilcha. "Optimal Hedging in the Futures Market Under Price Uncertainty”. Economics Letters 13 (1983): 141-145.
Bessembinder, H. “Systematic Risk, Hedging Pressure and Risk Premiums in Futures Markets”. Review of Financial Studies 5 (1992): 637-667.
Bollerslev T., and J.M. Wooldridge. “Quasi-maximum Likelihood Estimation and Inference in Dynamic Models with Time-varying Covariances”. Econometric Reviews 11 (1992): 143-172.
Cashin, P., McDermott, C.J. and A. Scott. "The Myth of Comoving Commodity Prices." IMF Working Paper 169 (1999).
Cecchetti, S.G., Cumby, R.E., and S. Figlewski. “Estimation of the Optimal Futures Hedge”. Review of Economics and Statistics 70 (1988): 623–630.
Chan, W., and D. Young. “Jumping Hedges: An Examination of Movements in Copper Spot and Futures Markets”. Journal of Futures Markets, 26 (2006): 169-188.
Chang, B. ”Returns to Speculators and the Theory of Normal Backwardation”. Journal of Finance 40 (1985): 193-208.
Ederington, L.H. “The Hedging Performance of the New Futures Markets”. Journal of Finance 34 (1979): 157–170. Fagan, S., and R. Gencay. “Liquidity-Induced Dynamics in Futures Markets”. MPRA Working Paper 6677 January (2008).
Figlewski, S. “Hedging Performance and Basis Risk in Stock Index Futures”. Journal of Finance 39 (1984): 657–669.
Figuerola-Ferretti, I., and J. Gonzalo. “Modelling and Measuring Price Discovery in Commodity Markets”. Journal of Econometrics 158 (2010): 95-107.
Garbade, K.D., and W.L. Silber. ”Price Movements and Price Discovery in Futures and Cash Markets”. Review of Economics and Statistics 65 (1983): 289-297.
Hamilton, J.D. “A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle”. Econometrica 57 (1989): 357-384.
Hamilton, J.D. Time series analysis. Princeton, NJ: Princeton University Press. (1994).
Hieronymus, T.A. Economics of Futures Trading for Commercial and Personal Profit. 2nd reprint New York: Commodity Research Bureau Inc. (1977)
Irwin, S.H., Sanders, D.R., and R.P. Merrin. ”Devil or Angel? The Role of Speculation in the Recent Commodity Price Boom (and Bust)”. Journal of Agricultural and Applied Economics 41 (2009): 377-391.
Johnson, L.L. ”The theory of Hedging and Speculation in Commodity Futures”. Review of Economic Studies 27 (1960): 139-151.
Kavussanos, M.C., and I.D. Visvikis. “Hedging Effectiveness of the Athens Stock Index Futures Contracts”. European Journal of Finance 14 (2008): 243-270.
Kolb, R.W., and J. Okunev. 'An Empirical Evaluation of the Extended Mean-Gini Coefficient for Futures Hedging', Journal of Futures Markets 12 (1992): 177-186.
Kroner, K.F., and J. Sultan. “Time-varying Distribution and Dynamic Hedging with Foreign Currency Futures”. Journal of Financial and Quantitative Analysis 28 (1993): 535–551.
Lee, T.H., and J. Yoder. “Optimal Hedging With a Regime-Switching Time-Varying Correlation Garch Model”. Journal of Futures Markets 27 (2007): 495–516.
Lence, S.H. “The Economic Value of Minimum-Variance Hedges”. American Journal of Agricultural Economics 77 (1995): 353-364.
Le Pen, Y., and B. Sévi. “Revisiting the Excess Co-movements of Commodity Prices in a Data-Rich Environment” memo Université de Nantes (2010).
Lescaroux, F. “On the Excess Co-movement of Commodity Prices—A Note about the Role of Fundamental Factors in Short-Run Dynamics”. Energy Policy 37 (2009): 3906-3913.
Lien, D. and Y.K. Tse. “Hedging Downside Risk with Future Contracts”. Applied Financial Economics 10 (2000):163-170.
McKinnon, R.L. “Futures Markets, Buffer Stocks and Income Stability for Primary Producers”. Journal of Political Economy 73 (1967): 844-861.
Miffre, J.” Conditional OLS Minimum Variance Hedge Ratios”. Journal of Futures Markets 24 (2004): 945-964.
Pyndick, R.S., and J.J. Rotemberg. “The Excess Co-movement of Commodity Prices”. Economic Journal 100 (1990): 1173–1189.
Sarno, L., and G. Valente. “The Cost of Carry Model and Regime Shifts in Stock Index Futures Markets: An Empirical Investigation”. Journal of Futures Markets 20 (2000): 603–624.
Stein, J.L. “The Simultaneous Determination of Spot and Futures Prices”. American Economic Review 51(1961): 1012-1025.
Stulz, R.M. “Rethinking Risk Management”. Journal of Applied Corporate Finance 9 (1996): 8-24.
Ward, R.W., and L.B. Fletcher. “From Hedging to Pure Speculation: a Micro Model of Futures and Cash Market Positions”. American Journal of Agricultural Economics 53 (1971): 71-78.