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Joseph D. Piotroski is an American professor who specializes in accounting and financial reporting issues. As of October 2010 he serves as associate professor of accounting at the Stanford University Graduate School of Business. Prior to that, he taught at the University of Chicago Booth School of Business from July 1999 to June 2007. 〔 Stanford University Graduate School of Business - Faculty Profiles - (Joseph D Piotroski ) 〕 Piotroski is known in the investing world for an influential 2000 paper he wrote while at the University of Chicago, entitled ''Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers''. In the piece, Piotroski laid out a way to buy and short stocks using several accounting-based criteria. His back-testing showed that the method would have produced returns well above the broader market averages over a two-decade period. Piotroski is a member of the Editorial Advisory Boards of ''The Accounting Review'', the ''Journal of Accounting Research'', and the ''Journal of Accounting and Economics''. His research has been cited in publications such as Bloomberg BusinessWeek, SmartMoney Magazine, and Investor's Business Daily. 〔 ==Education and early career== Piotroski received a B.S. in accounting from the University of Illinois in 1989, the same year in which he became a certified public accountant in the state of Illinois. From 1989 to 1992, he then worked as a senior tax associate at the firm Coopers & Lybrand. In 1994, Piotroski received an M.B.A. in finance from Indiana University. While at Indiana, he was a lecturer in Introduction to Financial Accounting from 1992-1994. He received his Ph.D. in accounting from the University of Michigan in 1999 and served as a graduate research assistant and graduate instructor there from 1994-1999. 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Joseph Piotroski」の詳細全文を読む スポンサード リンク
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