The report uses data from the Uniform Crime Report. UCR records crimes reported by the police, which isn't the same as crimes occured.
It's likely the link here is between Government Budgets (including budgets for police resources), and Interest Rate. Low IR generally happens in response to recessions. Budget cuts (including police budget cuts) also happen in response to recessions. Police activity reduces with reduced police budgets. Crimes reported to UCR reduces with reduced police activity.
It's likely the link here is between Government Budgets (including budgets for police resources), and Interest Rate. Low IR generally happens in response to recessions. Budget cuts (including police budget cuts) also happen in response to recessions. Police activity reduces with reduced police budgets. Crimes reported to UCR reduces with reduced police activity.