Corn exports: Farm policies that did not deliver
Clearly, corn production and exports are subject to long-term trends. For production, the trend has been decidedly upward in the US and elsewhere in the world. Increases in technology and the rate of adoption of new technologies have the potential to keep this trend going
So what does all this tell us?
Beginning with the 1985 Farm Bill, the US has pursued policies thought to be consistent with getting grain exports—corn exports specifically—back on an upward trend similar to the 1970s. Those efforts have been doomed to failure in large measure by the steady increase in corn acreage in the rest of the world. Furthermore, additional future increases in worldwide corn acreages will be coming from places like Brazil, not the US. Also, the rate of increase in non-US corn yields may well accelerate in the future.
The US will continue to be an important player in the corn export market. But declarations and farm policies predicated on the expectation that corn exports will be the primary driver for a prosperous US agriculture are no more likely to deliver in the future than they have over the last nearly three decades.
Source: Daryll E. Ray and Harwood D. Schaffer, Agricultural Policy Analysis Center, University of Tennessee