Until recently, U.S. corn exports destined for Canada faced a $1.65- per-bushel tax. This tax, or import tariff, was Canada’s response to claims made by Canadian corn farmers that they are the victims of subsidized and dumped U.S. corn. The Canadian International Trade Tribunal just ruled against the import tariff.
Babcock, Bruce A.
"Cheap Food and Farm Subsidies: Policy Impacts of a Mythical Connection,"
Iowa Ag Review: Vol. 12
, Article 1.
Available at: http://lib.dr.iastate.edu/iowaagreview/vol12/iss2/1