You are trading in a market in which you know there are a few highly skilled traders who are better informed than you are. There are no transaction costs. Each day you randomly choose five stocks to buy and five stocks to sell (by, perhaps, throwing darts at a dartboard).
(a) Over the long run will your strategy outperform, underperform, or have the same return as a buy and hold strategy of investing in the market portfolio?
(b) Would your answer to part (a) change if all traders in the market were equally well informed and were equally skilled?