This course explores how the market is influenced by the behavior of investors, attributable to psychology or institutional constraints. We will survey recent research on possible mispricing in these markets, investor behavior, the predictability of security returns, and the practical limits to arbitrage. Possible topics include earnings and price momentum, market anomalies, tactical asset allocation, under-reaction to news, the money management industry, and security complexity and obfuscation. Practical implications for portfolio management are developed and emphasis will be placed on data-driven analysis of financial markets.