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Correction of Measurement Error in Monthly USDA Pig Crop: Generating Alternative Data Series

Published online by Cambridge University Press:  26 January 2015

In-Seck Kim ,
Ronald L. Plain ,
J. Bruce Bullock  and
Sang Young Jei
In-Seck Kim
Affiliation:
Food and Agricultural Policy Research Institute at the University of Missouri and is now with the Department of Agricultural and Food Economics, Agri-Food & Biosciences Institute, Belfast, Northern Ireland
Ronald L. Plain
Affiliation:
Department of Agricultural Economics, University of Missouri
J. Bruce Bullock
Affiliation:
Department of Agricultural Economics, University of Missouri
Sang Young Jei
Affiliation:
Department of Agricultural Economics, University of Missouri
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Abstract

The imputed pig death loss contained in the reported monthly U.S. Department of Agriculture (USDA) pig crop data over the December 1995-June 2006 period ranged from —4.93% to 12.75%. Clearly, there are substantial measurement errors in the USDA monthly pig crop data. In this paper, we present alternative monthly U.S. pig crop data using the biological production process, which is compatible with prior knowledge of the U.S. hog industry. Alternative pig crop data are applied to a slaughter hog model and tested comparatively to USDA pig crop. Test results reject the validity of USDA pig crop data in favor of the alternative data.

Keywords

biological production processmeasurement errormonthly USDA pig crop datapig death lossQ11Q13C12
Type
Articles
Information
Journal of Agricultural and Applied Economics , Volume 40 , Issue 2 , August 2008 , pp. 697 - 711
Copyright
Copyright © Southern Agricultural Economics Association 2008

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