High Quality Content by WIKIPEDIA articles! Economist Dr. Robert G. Williams is the founder and primary owner of privately-held business Policy Studies, Inc. of Denver, CO (“PSI”). PSI was founded in 1984 as a consulting firm specializing in child support enforcement, and has grown to become a leading provider of services to the health and human services industry. Williams has played a key role in building PSI’s business as the company`s chief executive officer from 1984 until early 2006, and currently serving on it’s Board of Directors. Williams has a Ph.D. in public policy from Princeton University, an M.P.A. in urban affairs and domestic policies from Princeton University, and a B.A. in political science from the University of Illinois. Williams is credited with developing the Income Shares model for child support collection.