We use monthly time-series data for 20 large US cities to test the deterrence hypothesis (arrests reduce crimes) and the resource reallocation hypothesis (arrests follow from an increase in crime). We find (1) weak support for the deterrence hypothesis, (2) much stronger support for the resource...

This article develops a volatility model based on portfolio theory to examine state tax revenue variability. Unlike traditional parametric methods used to analyse state tax revenue variability, the portfolio approach allows the computation of a tax's share of total tax revenue that minimizes the...