Barber, Brad M.; Odean, Terrance - In: Review of Financial Studies 15 (2002) 2, pp. 455-488
We analyze 1,607 investors who switched from phone-based to online trading during the 1990s. Those who switch to online trading perform well prior to going online, beating the market by more than 2% annually. After going online, they trade more actively, more speculatively, and less profitably...