We examine theories of insurance companies’ choices of ownership structure and executive compensation, focusing on the impact of a firm’s lines of business in determining these policy choices. Using results on strategic complementarities, we identify the requirements for the theory to have testable implications for reduced-form regression coefficients. Obtaining testable implications for struct...

Internet users such as individuals and organizations are subject to different types of epidemic risks such as worms, viruses, spams, and botnets. To reduce the probability of risk, an Internet user generally invests in traditional security mechanisms like anti-virus and anti-spam software, sometimes also known as self-defense mechanisms. However, such software does not completely eliminate risk...

BACKGROUND In Colombia, HIV and AIDS constitute one of the major diseases of high cost to the health system, making necessary health risk management of patients with this disease through comprehensive health care programs with their respective evaluation of results. OBJECTIVE To evaluate the relative cost-effectiveness of a care program for patients with HIV/AIDS affiliated to a health insure...

By the year 2008, a major reorganization of health care services in the United States will have evolved from the solo- and group-practice models of the 1940s, with fee-for-service and insurer-indemnification financing and paper-based information systems, to nationwide managed care plans employing enhanced computer-based information systems.