Question 2. A city experiences a spate of crime and decides to try to arrest more criminals. To do so, it increases the size of the police force. After pursuing the policy for four months, the city receives the following data on arrest rates in the four months prior to and following the policy intervention. Month 4 -3 -2 -1 1 2 3 4 Number of Arrests 150 220 175 190 80 85 82 91 The press reports that the policy is a failure, as the increase in police presence did not result in \"more criminals being taken off the streets.\" Explain why the fall in the number of arrests might constitute good news for the efcacy of this policy. (A really great answer to this question would propose, informally, a simple model that would yield these results in equilibrium.)