A recent article in the Economist called attention to the mutual fund industry's flagrantly noncompetitive fee structure, noting that fund managers earn a quot;staggeringquot; profit margin of 42% on average, largely because quot;most fund managers do not compete on price.quot; Despite this...

Churning involves excessive trading by stockbrokers in order to generate commissions. Current practice uses the turnover ratio to detect excessive trading. The turnover ratio is a flawed indicator of the actual harm of excessive trading which is commissions. This paper examines the intersection...