AbadieImbens            Replication of Guido Imbens 'lalonde_exper_04feb2.m' file
                        http://elsa.berkeley.edu/~imbens/estimators.shtml

DehejiaWahba            Replication of Dehejia and Wahba (1999)

GerberGreenImai         Matching model for estimating the causal effect of get-out-the-vote telephone calls on turnout
