This volume, honoring Professor Stanley Reiter, reviews his many contributions and of his students in the varied areas of mathematical studies in economics and management science. Topics include economic history, mechanism design, game theory, dynamics and stability, and the structure of the firm. The contributors, all of whom wrote expressly for this book, are : J.S. Jordan; K.R. Mount; D. Morano and M. Walker; S.R. Williams and R. Radner; J. Hughes; H. Sonnenschein; E. Ames; L.E. Davis and R.E. Gallman; D.G. Saari; T. van Zandt; E. Bennett; T. Marschak and S. Reichelstein; S.A. Matthews and A. Postlewaite; L. Hurwicz and E. Maskin.