According to the FBI Bank Crime Statistics, there were more than 3,900 bank robberies in the United States in 2017. The FBI claims that banks have made themselves easy targets by refusing to install clear acrylic partitions, called bandit barriers, that separate bank tellers from the public. According to a special agent with the FBI, “Bandit barriers are a great deterrent. We’ve talked to guys who rob banks, and as soon as they see a bandit barrier, they go find another bank.” Despite this finding, many banks have been reluctant to install these barriers. What information would you need to determine whether banks have an economic incentive to install bandit barriers?