The problem is fund managers get paid no matter what. Virtually no mutual fund managers ever have their own $ in their own funds. Some hedge funds have skin in the game - they usually do better.
http://www.institutionalinvestor.co...game-outperform-study-shows.html#.WV9hm1G1thE
http://www.institutionalinvestor.co...game-outperform-study-shows.html#.WV9hm1G1thE