Comparison of Global Agricultural Supply and Demand Estimates from different Sources covering Wheat, Rice, Corn, and Soybeans. Raw Data from AMIS, 2011-2015

Global agricultural supply and demand estimates from the FAO, USDA, and IGC are compared to analyze data quality, documentation, and differences in the sources as well as the underlying reasons for these differences. All data is collected via AMIS (www.amis-outlook.org). The data originates from the AMIS Market Monitors No. 2 to 29.

Quality/Lineage: See linked doctoral thesis by Jan Brockhaus for more details on data quality and methods which were used for analyzing the data.
In general, the data seems to be of high quality. Few mistakes were found and corrected. Differences between the sources exist. For underlying reasons, see linked doctoral thesis.
Purpose: Understanding why different sources provide different estimates.