Choosing what to protect when attacker resources and asset valuations are uncertain
Journal Title: Operations Research and Decisions - Year 2014, Vol 24, Issue 3
Abstract
The situation has been modelled where the attacker’s resources are unknown to the defender. Protecting assets presupposes that the defender has some information on the attacker’s resource capabilities. An attacker targets one of two assets. The attacker’s resources and valuations of these assets are drawn probabilistically. We specify when the isoutility curves are upward sloping (the defender prefers to invest less in defense, thus leading to higher probabilities of success for attacks on both assets) or downward sloping (e.g. when one asset has a low value or high unit defense cost). This stands in contrast to earlier research and results from the uncertainty regarding the level of the attacker’s resources. We determine which asset the attacker targets depending on his type, unit attack costs, the contest intensity, and investment in defense. A two stage game is considered, where the defender moves first and the attacker moves second. When both assets are equivalent and are treated equivalently by both players, an interior equilibrium exists when the contest intensity is low, and a corner equilibrium with no defense exists when the contest intensity is large and the attacker holds large resources. Defense efforts are inverse U shaped in the attacker’s resources.
Authors and Affiliations
Kjell Hausken
Keywords
Related Articles
- EP ID EP167519
- DOI -
- Views 41
- Downloads 0
Modified optimization model for selecting project risk response strategies
The authors present modifications of the optimization model for selecting project risk response strategies proposed by Zhang and Fan. The weaknesses of the original model has been identified and an improved model with th...
Power on digraphs
It is assumed that relations between n players are represented by a directed graph or digraph. Such a digraph is called invariant if there is a link (arc) between any two players between whom there is also a directed pat...
EDITORIAL
This special issue of the Operations Research and Decisions is dedicated to the Spain-Italy-Netherlands Meeting on Game Theory SING 10, an international meeting that started as a reference point for game theorists mainly...
Orders of criticality in voting games
The authors focus on the problem of investigating the blackmail power of players in simple games, which is the possibility of players of threatening coalitions to cause them loss using arguments that are (apparently) unj...
On the performance of modified EWMA charts using resampling schemes
Two popular sampling schemes have been used to design control charts by means of a modified exponentially weighted moving average (EWMA) statistic. The structures of the proposed charts, using repetitive group sampling a...