Rationality of U.S. Department of Agriculture Livestock Price Forecasts: A Unified Approach

This research presents a systematic and unified approach to evaluating forecast rationality that considers the potential of nonstationarity in forecasts and realized values. The approach is applied to one-quarter ahead U.S. Department of Agriculture livestock price forecasts from 1982 through 2004....

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Published inJournal of agricultural and applied economics Vol. 39; no. 1; pp. 75 - 85
Main Authors Sanders, Dwight R., Manfredo, Mark R.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.04.2007
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Abstract This research presents a systematic and unified approach to evaluating forecast rationality that considers the potential of nonstationarity in forecasts and realized values. The approach is applied to one-quarter ahead U.S. Department of Agriculture livestock price forecasts from 1982 through 2004. Results show that forecasts and realized prices are integrated of the same order, and those that are nonstationary are cointegrated. However, the stationary price forecasts for hogs, turkeys, eggs, and milk are biased and improperly scaled, and forecast errors tend to be repeated. Similarly, nonstationary forecasts for cattle and broilers are also biased and irrational in the long run, but short-run dynamics are rational.
AbstractList This research presents a systematic and unified approach to evaluating forecast rationality that considers the potential of nonstationarity in forecasts and realized values. The approach is applied to one-quarter ahead U.S. Department of Agriculture livestock price forecasts from 1982 through 2004. Results show that forecasts and realized prices are integrated of the same order, and those that are nonstationary are cointegrated. However, the stationary price forecasts for hogs, turkeys, eggs, and milk are biased and improperly scaled, and forecast errors tend to be repeated. Similarly, nonstationary forecasts for cattle and broilers are also biased and irrational in the long run, but short-run dynamics are rational.
Author Sanders, Dwight R.
Manfredo, Mark R.
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  organization: Department of Agribusiness Economics, Southern Illinois University, Carbondale, IL
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  surname: Manfredo
  fullname: Manfredo, Mark R.
  organization: Morrison School of Agribusiness and Resource Management, Arizona State University, Mesa, AZ
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Cites_doi 10.1016/S0261-5606(00)00031-0
10.1016/0304-4076(92)90104-Y
10.1017/S0081305200025152
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rationality
livestock prices
forecast evaluation
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SubjectTerms agricultural forecasts
Agriculture
broiler chickens
C53
cattle
Commodities
econometric models
Efficiency
eggs
Elasticity
forecast evaluation
forecasting errors
Forward exchange
Futures market
Hypotheses
Hypothesis testing
Livestock
livestock prices
livestock production
milk
Prices
Q13
Rationality
swine
Time series
turkeys
USDA
Title Rationality of U.S. Department of Agriculture Livestock Price Forecasts: A Unified Approach
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