In the trading literature, when the topic of money management is discussed, most traders would mention or are aware of the works of individuals such as Van Tharp, Ralph Vince, Larry Williams, and Nauzer Balsara, etc. I am fairly familiar with the works of those individuals. However, being an outsider, I get the impression that the real professional money management industry does not pay attention to them. Instead, if you look up money management in a more professional forum like wilmott, people mention books such as "Active Portfolio Management" by Grinold and Kahn, or "Quantitative Equity Portfolio Management" by Qian. I have not had time to study these works, but am curious about why there seems to be different approaches for traders and for fund management firms.