2 Abstract Role-based access control (RBAC) is a promising alternative to traditional discretionary and mandatory access controls. In RBAC permissions are associated with roles, and users are made members of appropriate roles thereby acquiring the roles' permissions. In this paper we formally show that lattice-based mandatory access controls can be enforced by appropriate connguration of RBAC c...

Prior studies illustrate the issues of agency theory stemmed from the separation between ownership and management. As such, information asymmetry between the agent and principal is the major reason why agent can take advantages from adverse selection and moral hazard, which is the obvious problem in recent accounting scandals. Boards of directors therefore have fiduciary duties to exercise effe...

Although screening policies for older drivers based on chronological age are widely used in many countries, previous research has shown that increasing age does not cause higher crash rates and that consequently, chronological age per se is at best only a weak predictor of safe driving performance. Previous research on age-based mandatory screening of older drivers has not been able to demonstr...

CONTEXT The Institute of Medicine has recommended establishing mandatory error reporting systems for hospitals and other health settings. OBJECTIVE To examine the opinions and experiences of hospital leaders with state reporting systems. DESIGN AND SETTING Survey of chief executive and chief operating officers (CEOs/COOs) from randomly selected hospitals in 2 states with mandatory reporting...

This study examined police reporting behavior in elder mistreatment (abuse, neglect, and exploitation) cases. Relying on a survey of police officers in Alabama, this research investigates a nested model of mandatory reporting using linear regression techniques. Only about half of all elder mistreatment cases are reported to the proper authorities. Job experience, contact with the elderly, under...

The authors present three ethical arguments to address the controversy of mandatory community treatment: rights-based versus beneficence, utilitarian, and communitarian. Each approach suggests that mandatory community treatment can be an ethical intervention for individuals with severe mental disorders in well-defined circumstances. It is critical to recognize that such interventions cannot be ...

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The paper analyzes the welfare implications of mandatory disclosure of losses at financial institutions when it is common knowledge that some banks have incurred losses but not which ones. We develop a model that features “contagion,” meaning that banks not hit by shocks may still suffer losses because of their exposure to banks that are. In addition, banks in our model have profitable investme...