title: Attacker Deterrence and Perceived Risk in a Stackelberg Security Game.
abstract: In Stackelberg security games, a defender must allocate scarce resources to defend against a potential attacker. The optimal defense involves the randomization of scarce security resources, yet how attackers perceive the risk given randomized defense is not well understood. We conducted an experiment where attackers chose whether to attack or not attack targets protected by randomized defense schemes, the key treatment variable being whether the defender picks one target at random to guard or imperfectly guards all targets. The two schemes are expected-payoff equivalent, and when provided separately we found no effect of having one scheme or the other. Yet, when both are present, we found that subjects had a preference for the fixed scheme, a preference that cannot be reduced to differences in beliefs. Overall, our results suggest that understanding how individuals perceive risk is vital to understand the behavior of attackers.
authors.affiliation: Department of Economics, University of California, Irvine, CA, USA.|Experimental Social Science Laboratory, University of California, Irvine, CA, USA.
authors.forename: Garret
authors.initials: G
authors.lastname: Ridinger
authors.affiliation: Department of Psychology, University of Southern California, Los Angeles, CA, USA.
authors.forename: Richard S
authors.initials: RS
authors.lastname: John
authors.affiliation: Department of Economics, University of California, Irvine, CA, USA.|Experimental Social Science Laboratory, University of California, Irvine, CA, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: McBride
authors.affiliation: Department of Psychology and Social Behavior, University of California, Irvine, CA, USA.|Department of Criminology, Law, and Society, University of California, Irvine, CA, USA.|School of Law, University of California, Irvine, CA, USA.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Scurich
keywords: Attack; perception; security