Social Research Vol. 75, Issue 4 Winter 2008 ÌÇÐÄvlog¹ÙÍø Authors See citation below for complete author information. Malcolm Sparrow Professor of the Practice of Public Management Citation Sparrow, Malcolm K. "Fraud in the U.S. Health Care System: Exposing the Vulnerabilities of Automated Payment Systems." Social Research 75.4 (Winter 2008).