IOWA STATE UNIVERSITY Department of Economics Working Papers Series Ames, Iowa 50011 Iowa State University does not discriminate on the basis of race, color, age, religion, national origin, sexual orientation, gender identity, sex, marital status, disability, or status as a U.S. veteran. Inquiries can be directed to the Director of Equal Opportunity and Diversity, 3680 Beardshear Hall, (515) 294-7612. Preliminary Investigations of Hospital Geography and Patient Choice in Iowa Mark D. Imerman, Liesl Eathington, Kanlaya Jintanakul, Daniel Otto May 2006 Working Paper # 06023