EFM                     EFM
RHC                     RHC
atebounds               Bounding the average treatment effect (ATE)
attbounds               Bounding the average treatment effect on the
                        treated (ATT)
simulation_dgp          Simulating observations from the
                        data-generating process considered in Lee and
                        Weidner
summary.ATbounds        Summary method for ATbounds objects
