This paper investigates the purchases and redemptions of a large cross-sectional sample of German equity funds. We find that investors punish bad performance by selling their shares, but also have a tendency to sell winners. Investors in large fund families show higher sales and redemption...

We develop a dynamic model to study the interaction between obfuscation and investor sophistication in retail financial markets. Taking into account different learning mechanisms within the investor population, we characterize the optimal timing of obfuscation for a profit-maximizing monopolist....

"Time and time again, individual investors discover - all too late - that picking stocks is a loser's game. The alternative lies with index funds. Index funds allows investors to invest more cheaply while prospering all the more because the money saved on investment expenses stays in one's own...