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Rejoinder to Causal Inference Through Potential Outcomes and Principal Stratification: Application to Studies with

It is a pleasure to have the opportunity to respond to these three complementary discussions written by Edward L. Korn (ELK), Paul R. Rosenbaum (PRR) and Stephen E. Fienberg (SEF), each of whom has made substantial contributions to problems of causal inference. Thanks to all three for the generosity expressed in their comments. I am in agreement with many points raised by them, but there are a few places where we may not fully agree, possibly due to misunderstandings.