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Fractional integration in agricultural futures price volatilities revisited

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Author Info
Peter S. Sephton

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Abstract

Jin and Frechette (2004) examined the degree to which agricultural price volatilities exhibited evidence of fractional integration and concluded it was important to consider both long-run and short-run memory when modeling conditional variances. The purpose of this note is to revisit the issue using new methods and techniques which generally reaffirm the view that return volatilities are fractionally integrated and conditionally heteroskedastic, with many exhibiting significant leverage effects, a result not previously reported. Copyright (c) 2009 International Association of Agricultural Economists.

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File URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j.1574-0862.2008.00363.x
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Article provided by International Association of Agricultural Economists in its journal Agricultural Economics.

Volume (Year): 40 (2009)
Issue (Month): 1 (01)
Pages: 103-111
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Handle: RePEc:bla:agecon:v:40:y:2009:i:1:p:103-111

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This page was last updated on 2009-11-27.

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