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Time-varying Hedge Ratios: A Principal-agent Approach

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  • John K. M. Kuwornu
  • W. Erno Kuiper
  • Joost M. E. Pennings
  • Matthew T. G. Meulenberg

Abstract

We use the classic agency model to derive a time-varying optimal hedge ratio for low-frequency time-series data: the type of data used by crop farmers when deciding about production and about their hedging strategy. Rooted in the classic agency framework, the proposed hedge ratio reflects the context of both the crop farmer's decision and the crop farmer's contractual relationships in the marketing channel. An empirical illustration of the Dutch ware potato sector and its futures market in Amsterdam over the period 1971-2003 reveals that the time-varying optimal hedge ratio decreased from 0.34 in 1971 to 0.24 in 2003. The hedging effectiveness, according to this ratio, is 39%. These estimates conform better with farmers' interest in using futures contracts for hedging purposes than the much higher estimates obtained when price risk minimisation is the only objective considered. Copyright 2005 Blackwell Publishing Ltd.

Suggested Citation

  • John K. M. Kuwornu & W. Erno Kuiper & Joost M. E. Pennings & Matthew T. G. Meulenberg, 2005. "Time-varying Hedge Ratios: A Principal-agent Approach," Journal of Agricultural Economics, Wiley Blackwell, vol. 56(3), pages 417-432.
  • Handle: RePEc:bla:jageco:v:56:y:2005:i:3:p:417-432
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    References listed on IDEAS

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    1. Harwood, Joy L. & Heifner, Richard G. & Coble, Keith H. & Perry, Janet E. & Somwaru, Agapi, 1999. "Managing Risk in Farming: Concepts, Research, and Analysis," Agricultural Economics Reports 34081, United States Department of Agriculture, Economic Research Service.
    2. Chavas, Jean-Paul, 2004. "Risk Analysis in Theory and Practice," Elsevier Monographs, Elsevier, edition 1, number 9780121706210.
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    Cited by:

    1. Wagner Oliveira Monteiro & Rodrigo De Losso da Silveira Bueno, 2011. "Dynamic Hedging inMarkov Regimes Switching," Anais do XXXVII Encontro Nacional de Economia [Proceedings of the 37th Brazilian Economics Meeting] 136, ANPEC - Associação Nacional dos Centros de Pósgraduação em Economia [Brazilian Association of Graduate Programs in Economics].
    2. Fu, Junhui & Zhang, Wei-Guo & Yao, Zheng & Zhang, Xili, 2012. "Hedging the portfolio of raw materials and the commodity under the mark-to-market risk," Economic Modelling, Elsevier, vol. 29(4), pages 1070-1075.

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