This .zip file contains graphic files (in .png format) of each chart and graph in the Economic Research Service report
"Non-convergence of futures market grain prices: Examining the causes" (EIB-115), published in August 2013. 
The content and context of these files is as of the publication date of the report. After time, the material may not reflect the 
current ERS program of work, may be outdated, and/or superseded, so please visit the website to obtain the latest information: www.ers.usda.gov
Any reuse of these images should include attribution to "Economic Research Service/USDA."

The following inventory lists each of the files in this folder.


File name		Description

(Fig-01.png)		Figure 1 - Futures price at expiration minus cash price, 1986-2013
(Fig-02.png)		Figure 2 - Daily open interest, 1998-2010 
(Fig-03.png)		Figure 3 - Contract termination for a short trader
(Fig-04.png)		Figure 4 - Non-convergence is caused by the wedge
(Fig-04B.png)		Figure 4B - Non-convergence is caused by the wedge, continued
(Fig-05.png)		Figure 5 - Elements of non-convergence in Chicago Board of Trade (CBOT) wheat, 1986-2010
(Fig-06.png)		Figure 6 - Actual basis versus model predictions: 1986-2010