Generalized Nonlinear Difference-in-Difference-in-Differences

The work of the first author was supported by Riksbankens Jubileumsfond, Grant M13-0559:1, PI: Staff an I. Lindberg, V-Dem Institute, University of Gothenburg, Sweden and by European Research Council, Grant 724191, PI: Staff an I. Lindberg, V-Dem Institute, University of Gothenburg, Sweden.