Seasonal volatility in agricultural markets: modelling and empirical investigations

L. Schneider () and B. Tavin ()
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L. Schneider: EMLYON Business School
B. Tavin: EMLYON Business School

Annals of Operations Research, 2024, vol. 334, issue 1, No 2, 7-58

Abstract: Abstract This paper deals with the issue of modelling the volatility of futures prices in agricultural markets. We develop a multi-factor model in which the stochastic volatility dynamics incorporate a seasonal component. In addition, we employ a maturity-dependent damping term to account for the Samuelson effect. We give the conditions under which the volatility dynamics are well defined and obtain the joint characteristic function of a pair of futures prices. We then derive the state-space representation of our model in order to use the Kalman filter algorithm for estimation and prediction. The empirical analysis is carried out using daily futures data from 2007 to 2019 for corn, cotton, soybeans, sugar and wheat. In-sample, the seasonal models clearly outperform the nested non-seasonal models in all five markets. Out-of-sample, we predict volatility peaks with high accuracy for four of these five commodities.

Keywords: Stochastic volatility; Model selection; Agricultural commodities; Seasonal volatility (search for similar items in EconPapers)
JEL-codes: C51 C52 D81 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10479-021-04241-7

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