We examine a sequential mechanism which is a simple modification of th
e normal form mechanism introduced by Abreu and Matsushima (1992). We
show that almost any social choice function can be virtually implement
ed via a finite sequential game of perfect information. The solution c
oncept assumed is backwards induction. In particular, any social choic
e function that is virtually implementable via the Abreu-Matsushima me
chanism is also virtually implementable by a sequential mechanism. Jou
rnal of Economic Literature Classification Number: C72. (C) 1996 Acade
mic Press, Inc.