In 2007, about 110 million tons wheat was traded in
the world wheat market (IGC, 2008). Because of the
concentration of wheat production in a few countries,
a large volume of wheat is traded in the world market
(Koo and Taylor, 2008). Major exporting countries
are the United States, Canada, the EU-27, Australia,
and Argentina. Major importing countries are North
Africa countiries, Middle East, North East Asian countries