Lee, Myoung-jae - In: Journal of the Royal Statistical Society Series B 71 (2009) 1, pp. 243-264
For a binary treatment "ν"=0, 1 and the corresponding 'potential response'"Y"-super-0 for the control group ("ν"=0) and "Y"-super-1 for the treatment group ("ν"=1), one definition of no treatment effect is that "Y"-super-0 and "Y"-super-1 follow the same distribution given a covariate...
