While much attention has been focused on the value of the U.S. dollar since the U.S. Federal Reserve Board modified monetary policy and started to raise interest rates, there is another currency important to agricultural trade that is also undergoing some changes in direction.A great deal of attention has been focused on the value of the U.S. dollar since the U.S. Federal Reserve Board modified monetary policy and started to raise interest rates. There is, however, another currency important to agricultural trade that is also undergoing some changes in direction that is worth examining: the Brazilian real.The real has taken a beating since 2011, losing approximately 60 percent of its value. This was due to two trends:

The bull commoditie...