We consider a repeated stochastic coordination game with imperfect public monitoring. In the game any pattern of coordinated play is a perfect Bayesian Nash equilibrium. Moreover, standard equilibrium selection arguments either have no bite or they select an equilibrium that is not observed in...

A natural conjecture is that speculative trade disappears when individual beliefs become correct through learning. Sandroni in [22] gives a counterexample in an economy with sunspots. We generalize Sandroni's result by showing that the conjecture holds for economies with complete markets only....

There is an extensive literature claiming that it is often difficult to make use of arbitrage opportunities in nancial markets. This paper provides a new reason why existing arbitrage opportunities might not be seized. We consider a world with short-lived securities, no short-selling constraints...

Bubbles in asset markets have been documented in numerous experimental studies. However, all experiments in which bubbles occur pay dividends after each trading day. In this paper we study whether bubbles can occur in markets without dividends. We investigate the role of two features that are...

We present a version of the APT based on an asset index set of an arbitrary infinite cardinality. Under assumptions due to Ross and Chamberlain-Rothschild, we shhow that in the absence of gains from asymptotic arbitrage, the square of the deviations of the individual rates of return from a...

In this paper, we formulate a restatement of the theory of choice under uncertainty. As an alternative to the rank-dependent expected utility model, we develop a probability-altering theory in which the transformation of probabilities is weighted by the centered outcome of the lottery which may...

In frictionless securities markets, the characterization of the no arbitrage condition by the existence of equivalent martingale measures in discrete time is known as the fundamental Theorem of Asset Pricing. In the presence of convex constraints on the trading strategies, we extend this theorem...

This paper develops methods for relating the prices of discrete- and continuous-time versions of path-dependent options sensitive to external values of the underlying aset. including lookback, barrier, and hindsight options. The relationships take the form of correction terms that can be...

We present an equilibrium framework in which asset prices, default-free term structure and default premia are determined simultaneously.

By deriving the implied dividend growth rate from earnings growth rates, the method of Donaldson and Kamstra [1996] is extended to provide formal fundamentals valuation fo firms that pay out no dividends. No previous work known to me has succeeded in providing formal fundamentals valuation for...