Decomposing USDA Ending Stocks Forecast Errors

Document Type

Article

Publication Date

5-1-2023

Abstract

The USDA publishes monthly ending stocks projections, providing an estimate of the end-of-marketing-year inventory of a particular commodity. By comparing these projections of balance-sheet variables against their realized values from marketing years 1992/3 to 2019/20, we decompose ending stocks forecast errors into errors of the other supply and demand components. Our results indicate that export and production misses are the key contributors to projection errors. We likewise investigate US export errors. Our results make a strong case that better information about production expectations, both domestically and worldwide, will contribute to more efficient agricultural balance-sheet forecasts.

Publication Source (Journal or Book title)

Journal of Agricultural and Resource Economics

First Page

260

Last Page

276

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