Kelly Criterion

Yoav Ravid (+66) Added a post from gwern
Yoav Ravid (+313)

the Kelly criterion (or Kelly strategy or Kelly bet), also known as the scientific gambling method, is a formula for bet sizing that leads almost surely to higher wealth compared to any other strategy in the long run (i.e. approaching the limit as the number of bets goes to infinity). (Wikipedia)

see also:Betting