Profitable destabilizing speculation - comments by William J. Baumol and Jay H. Levin; Arrow-Debreu theory - comment by Jack Hirshleifer; the contingent claims model of speculation; intrinsic uncertainty in financial economics - comment by Ronald E. Shrieves; homogenous beliefs and speculation in asset pricing paradigms - comment by Merton H. Miller; arbitrage pricing, common knowledge priors, and market completeness - comment by Robert F. Nau; feedback effects and speculative bubbles in informational price theory - comment by Brendan O'Flaherty.
