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Title:Understanding the price of DDGS
Author(s):Silvestri, Jake R.
Advisor(s):Irwin, Scott H.
Department / Program:Agricultural & Consumer Economics
Discipline:Agricultural & Applied Economics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Vector Error Correction model (VECM)
Dried Distiller's Grains with Solubles (DDGS)
Soybean Meal
Abstract:This thesis explores the factors that affect the price of dried distillers’ grain with solubles (DDGS) in Iowa. Past studies focused on providing a descriptive analysis of DDGS prices, risk management practices or analyzing regional DDGS price differences. Time series methods are used to investigate the presence of a cointegrating relationship between weekly DDGS prices, soybean meal prices and corn prices in Iowa. The corn and soybean meal prices used in the analysis are spot prices rather than futures prices. When seasonality in the data is controlled for, a cointegrating relationship between the three price series is found and a Vector Error Correction model (VECM). Additionally, weak exogeneity testing shows that corn is weakly exogenous. The cause of this finding may be differences in the ease of storing the three commodities. Granger causality gives insight into the direction of causality between the three price series. Impulse response functions are also included in the analysis. The VECM that is fit to the data also demonstrates value as a forecasting tool at up to four time horizons.
Issue Date:2015-06-18
Rights Information:Copyright 2015 Jake Silvestri
Date Available in IDEALS:2015-09-29
Date Deposited:August 201

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