Mikael Priks

The Effects of Surveillance Cameras on Crime: Evidence from the Stockholm Subway

This paper studies the effect of surveillance cameras on crime in the Stockholm subway. Beginning in 2006, surveillance cameras were installed in the subway stations at different points in time. Difference-in-difference analysis reveals that the introduction of the cameras reduced crime by approximately 20 percent in busy stations. I also show that some of the crimes were displaced to the surrounding area.

Do Surveillance Cameras Affect Unruly Behavior? A Close Look at Grandstands

How do surveillance cameras affect unruly spectator behavior? I examine this question using a natural experiment from the Swedish soccer league. Stadiums in Sweden introduced surveillance cameras at different points in time during the years 2000 and 2001. I exploit the exogenous variation that occurred because of differences across stadiums in the processing time taken to obtain permits for cameras as well as delays in the supply of equipment. Conditioning on stadium fixed effects, unruly behavior was found to be approximately 65 percent lower in stadiums with cameras compared to stadiums without cameras. The identification strategy provides a unique possibility to address problems regarding endogeneity, simultaneous policy interventions, and displacement effects.

Does Frustration Lead to Violence? Evidence from the Swedish Hooligan Scene

Sport-related violence is widespread. Yet, there is a poor understanding of what factors trigger hooligans to become unruly. In this paper I test the so called frustration-aggression hypothesis, which holds that thwarted expectations from a reference point tend to lead to violent behavior. I use unique data on hooligan violence in Sweden. I find that frustration, generated by a teams bad performance, indeed leads to unruly supporter behavior. A one-position drop in the soccer league leads to approximately 5 percent more unruly behavior by the teams supporters. The analysis helps policy makers in their endeavors to reduce group-related violence.

Does Frustration Lead to Unruly Behavior? Evidence from the Swedish Hooligan Scene

Sport-related violence is widespread. Yet, there is a poor understanding of what factors trigger hooligans to become unruly. In this paper I test the so called frustration-aggression hypothesis, which holds that thwarted expectations from a reference point tend to lead to violent behavior. I use unique data on hooligan violence in Sweden. I find that frustration, generated by a teams bad performance, indeed leads to unruly supporter behavior. A one-position drop in the soccer league leads to approximately 5 percent more unruly behavior by the teams supporters. The analysis helps policy makers in their endeavors to reduce group-related violence.