詹姆斯·奧肖內西，奧肖內西資産管理公司主席兼CEO，該公司是一傢位於康涅狄格州的資産管理公司。奧肖內西曾在貝爾斯登擔任投資組閤經理、係統證券主任與高級管理主任。他是證券定量化分析與投資管理領域的專傢。同時他還善於投資模型與調研決策係統的運作。從1995年開始。他就將標準普爾數據庫的投資策略數據進行定量化分析，並將結果整理到他的著作《投資策略實戰分析》中，這本書是馳名華爾街的經典暢銷書。奧肖內西因其投資策略而榮獲美國專利，並被福布斯網站評為最傳奇的投資者之一。

This title offers long-term strategies that have always beaten the markets, and how to make them work for you. "What Works on Wall Street, Third Edition", cuts straight to the chase, examining actual historic performance figures to tell you which strategies have provided investors with the best returns, which should be avoided at all costs, and why. Comprehensively updated from its bestselling second edition, this investor classic goes beyond hype and rumor to focus on actual results, and tell you what smart investors are doing now. 'O'Shaughnessy's conclusion that some strategies do produce consistently strong results while others underperform could shake up the investment business' - Barron's. '"What Works on Wall Street" is indisputably a major contribution to empirical research on the behavior of common stocks in the United States! Conceivably, the influence of "What Works on Wall Street" will prove immense' - "The Financial Analysts' Journal".'O'Shaughnessy's latest, "What Works on Wall Street", is a serious inquiry into the investment strategies that stand up under long-term scrutiny and is refreshing research for every investor' - "Stocks and Commodities". 'O'Shaughnessy's study is already making waves in the investment community! Could well become a classic' - "Smart Money". 'James O'Shaughnessy has enshrined P/S in the investing hall of fame in his superb new book, "What Works on Wall Street"' - James K. Glassman, "The Washington Post". 'What investment strategies have worked over the last 40 years? Ask this man' - "Barron's".For many investors, the stock market is little more than a guessing game. The stock market bubble of the late 1990s had many investors convinced that the rules of the game had changed and that this time, it really was different. "What Works on Wall Street, Third Edition" - with all new data through 2003 - shows that it's never different this time. Armed with earlier editions of this book, investors would have avoided the devastation visited on the high risk stocks that were the favorites of investors during the bubble. "What Works on Wall Street, Third Edition", takes the guesswork out of your investment decision-making. This in-depth, updated and data-driven book looks at key strategies and benchmarks that millions of investors rely on to make their investment decisions, and tells you which of these tools have provided investors with the best long-term results.Acclaimed author and portfolio manager James P. O'Shaughnessy presents factual, unbiased and unexpected findings that prove you can do vastly better than the market simply by consistently using stock selection strategies that have withstood the test of time. Moreover, these five decades of results warn investors to steer clear of some popular investment strategies that are toxic to your wealth. Expanded to include how various investment strategies perform when used on All Stocks, Large Stocks, Market Leaders and Small Stocks, this new edition of the book also covers all the new research O'Shaughnessy has conducted since the last edition.Which investment strategies are winners - and which are losers? What factors most reliably indicate that a stock will rise or fall? Are value strategies better than growth? Do small capitalization stocks do better than large? What's the worst-case scenario for the various investment strategies and how long did it take for them to recover? Do these strategies work outside the United States?"What Works on Wall Street" answers these questions and outlines a methodical, scientific, and results-based method for making intelligent stock market decisions. 'To make the best investment plans for the future, investors need access to unbiased, long-term performance results,' O'Shaughnessy writes. And that is exactly what he gives you in this history-making book. James P. O'Shaughnessy is the Director of Systematic Equity for Bear Stearns Asset Management and a Senior Managing Director of the firm. O'Shaughnessy's investment strategies have been featured in "The Wall Street Journal", "Barron's", "The New York Times", "The Washington Post", "Investor's Business Daily", "The Financial Times", London's "Daily Mail", Japan's "Nikkei Shimbun Daily", and many other publications worldwide, as well as on NBC's "Today Show," "The Oprah Winfrey Show," CNBC and CNN.