We conduct an extensive examination of profitability of technical analysis in ten emerging foreign exchange markets. Studying 25988 trading strategies, we find that best rules can sometimes generate an annually mean excess return of more than 30%. Based on standard tests, we find hundreds to...

I develop an equilibrium model with collateral constraints in which rational agents are uncertain and learn about the equilibrium mapping between fundamentals and collateral prices. Bayesian updating of beliefs by agents can endogenously generate booms and busts in collateral prices and largely...