Some of the world’s largest futures exchanges impose daily limits on the price movements of individual contracts. Using data from three of the most active US commodity futures contracts, we show that these price restrictions are largely ineffective because traders are able to take similar...

We examine the effect of price limits on futures contracts where there exist options contracts on those futures that have no price limits. We establish that when options are trading, the futures price implied by put-call parity provides an accurate prediction of the unconstrained futures price....

Some of the world's largest futures exchanges impose daily limits on the price movements of individual contracts. Using data from three of the most active US commodity futures contracts, we show that these price restrictions are largely ineffective because traders are able to take similar...

Psychological studies invariably find a positive relationship between video game play and aggression. However, these studies cannot account for either aggressive effects of alternative activities video game playing substitutes for or the possible selection of relatively violent people into...

Video games are an increasingly popular leisure activity. As many of best-selling games contain hyper-realistic violence, many researchers and policymakers have concluded that violent games cause violent behaviors. Evidence on a causal effect of violent games on violence is usually based on...