This material has been published in Journal of Economic Theory 42, 59-93, the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by Academic Press. This material may not be copied or reposted without explicit permission. (Copyright (C)1989 by Academic Press, Inc.).
Journal of Economic Theory, 1987, vol. 42, no. 1, pp. 53-93
Myrna Holtz Wooders (University of Toronto)
William R Zame (State Universtiy of New York at Buffalo)