[R] difference-in-difference method for estimating causal impact,

Ralf Pfeiffer ess.forall at yahoo.com
Tue Apr 18 19:33:56 CEST 2017


i want to estimate the causal impact on a scale variable, using the difference-in-difference-method and the following 4 groups
- control- and treatment group (counterfactual analysis) 
- two periods, measurement before and after treatment.  

After discovering and estimating the causal effect (of course, only if existing) i like to make deeper analysis, causal mediation analysis, and fixed effects analyisis.  

Does anyone know a package or packages, with which one can do this estimations, calculation and graphics?
Thanks a  lot for any information.

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