This quantity gives the definitive therapy of fortune’s formulation or the Kelly capital development criterion as it’s usually known as. The technique is to maximise future wealth of the investor by maximizing the interval by interval anticipated utility of wealth with a logarithmic utility perform. Mathematical theorems present that solely the log utility perform maximizes asymptotic future wealth and minimizes the anticipated time to arbitrary giant objectives. In normal, the technique is dangerous within the quick time period however because the variety of bets improve, the Kelly bettor’s wealth tends to be a lot bigger than these with primarily totally different methods. So more often than not, the Kelly bettor could have far more wealth than these different bettors however the Kelly technique can result in appreciable losses a small p.c of the time. There are methods to scale back this danger at the price of decrease anticipated closing wealth utilizing fractional Kelly methods that mix the Kelly recommended wager with money. The varied basic reprinted papers and the brand new ones written particularly for this quantity cowl varied facets of the idea and apply of dynamic investing. Good and unhealthy properties are mentioned, as are fixed-mix and volatility induced development methods. The relationships with utility principle and using these concepts by nice buyers are featured.