Professor David M. Miller has served as the director of the Haller Enterprise Institute since its inception as the Thiel Enterprise Institute. A 1961 Thiel College alumnus, professor of economics and business administration and Norman P. Mortensen Chair of Economics of the College's Arthur McGonigal Department of Business Administration and Accounting, Miller's interest in the Institute is unmatched.

Miller is highly respected by students and his faculty peers. He is the first professor to hold an endowed academic chair at Thiel; he is the 1990 recipient of the Sears-Roebuck Teaching Excellence and Campus Leadership Award; and in October 1999, he received the Service to Thiel Award from the Thiel Alumni Association.

After completing his undergraduate studies at Thiel in 1961, Miller earned his MBA in 1962 from the University of Pittsburgh where he was awarded a full fellowship. Miller subsequently studied at Kent State University from 1967-69 and regularly attends professional development seminars in the areas of accounting, marketing and management.

Miller's long-time interest in entrepreneurship is demonstrated by his involvement in local enterprises including Miller's Furniture of Mercer, Mercer Hydroponics, Pennsylvania's largest hydroponic grower, and Motivation Air, the fixed based operator of the Greenville Airport.