Although species longevity is subject to a diverse range of evolutionary forces, the mortality curves of a wide variety of organisms are rather similar. Here we argue that qualitative and quantitative features of aging can be reproduced by a simple model based on the interdependence of fault-prone agents on one other. In addition to fitting our theory to the empiric mortality curves of six very...

The interdependency of information security risks often induces firms to invest inefficiently in information technology security management. Cyberinsurance has been proposed as a promising solution to help firms optimize security spending. However, cyberinsurance is ineffective in addressing the investment inefficiency caused by risk interdependency. In this paper, we examine two alternative ri...

MICHAEL J. LENOX Fuqua School of Business Duke University PO Box 90210 Durham, NC 27708 Tel: (919) 660-8025 Fax: (919) 681-6244 [email protected] SCOTT F. ROCKART Fuqua School of Business Duke University PO Box 90210 Durham, NC 27708 Tel: (919) 660-7998 Fax: (919) 681-6244 [email protected] ARIE Y. LEWIN Fuqua School of Business Duke University PO Box 90210 Durham, NC 27708 Tel: (919) 660-7832 Fa...

In large-scale disaster events, infrastructure owners are faced with many challenges in deciding the allocation ofresources for preparation and response actions. This decision process involves building situation awareness, evaluating course of action, and effecting response. This paper describes a modeling and simulation system called CIMS that presents a visual environment for assessing the ca...

Complexity in water distribution systems (WDSs) poses a challenge for analysis and management of the systems. To reduce complexity, recent development complex network science provides system decomposition technique that converts WDS with large number components into simple set interconnected modules. Each module is subsystem stronger internal connections than external connections. Thus far, top...