Dr. Tierney has been Chief Economist for AgResource Company since joining the firm in October 2011. He has over 32 years of experience working as a leading agricultural economist, primarily as a global crop market analyst. Bill’s previous positions include USDA’s Principal Grains Economist; Professor in the Deparment of Ag Economics at Kansas State University; Exec. VP for Research serving mostly US ethanol plants; Head of North American Research for LML International; Senior Analys for Black River Asset Management (a commodity hedge fund operated by Cargill; General Manager of Doane Advisory Services; Senior agricultural advisor in Iraq while working for the US government. Bill is a graduate of Michigan State Univeristy and the University of Missouri. Bill is married and has three adult children.