Jodi Beggs brings Charles Wheelan's idea for "CSI: Regression Analysis" to life with some help from a few Boston-based comedians. For more commentary and sources, see http://www.economistsdoitwithmodels.com/2015/01/23/causal-friday-csi-regression-analysis/ For more information and online content, see http://www.economistsdoitwithmodels.com/. For t-shirts and other EDIWM items, see http://www.economistsdoitwithmodels.com/merch/ By Jodi Beggs - Economists Do It With Models http://www.economistsdoitwithmodels.com/ Facebook: http://www.facebook.com/economistsdoitwithmodels Twitter: http://www.twitter.com/jodiecongirl Tumblr: http://economistsdoitwithmodels.tumblr.com/