We study the revelation principle in multistage games for perfect Bayesian equilibium and sequential equilibrium. The question of whether or not the revelation principle holds is subtle, as expanding players’ opportunities for communication expands the set of consistent beliefs at off-path information sets. In settings with adverse selection but no moral hazard, Nash, perfect Bayesian, and sequ...

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Background: Determining the genetic gender has been a human's inaccessible will during the history. Today science resolves the problem; pre implantation diagnosis (PGD) is used as a method of genetic disease diagnosis and gender determination. The holy Quran in many verses ascribes genetic gender determination and recognition to Allah, the Almighty. Hence, according to some, genetic gender...