Q. However, all inferences from ANOVA also follow from a regression model. Regression is more flexible, easier to add g , model extensions and is main statistical procedure used in economics. So we will not separately cover ANOVA, but will take up regression next week. Consider Does Death Penalty Deter Murder? By Tammra Hunt. Compare murder rates with and without death penalty. Cross-section of states: is murder rate higher on average in states without executions? Time series of states: did murder rate fall in states implementing death penalty when allowed by Supreme Court?