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Short Bio

Born in Vienna (Austria)
Grew up in Switzerland
Live & work (together with my wife Fortunée, a stone sculptor) in New York City, Jerusalem (Israel) and Villeneuve (Switzerland).
  • 1968 - 1972 Eidgenössische Technische Hochschule (ETH), Zürich, Switzerland, MSc mathematics

  • 1973 - 1975 Stanford University, MBA

  • 1975 - 1984 Hebrew University, Jerusalem, Israel, Ph.D. mathematical economics

Work experience
  • Management consultant, McKinsey & Co, Zurich, Munich, London

  • Assistant Professor of Finance and Decision Sciences, U. of Pennsylvania, Wharton

  • Assistant Professor of Finance, Hebrew University, Jerusalem

  • Visiting Professor of Economics, University of Zürich

  • Correspondent for the Neue Zürcher Zeitung, Switzerland


  • Kepler’s Conjecture: How Some of the Greatest Minds in History Helped Solve one of the Oldest Math Problems of the World; John Wiley, 2003.

  • The Secret Life of Numbers: 50 Easy Pieces on How Mathematicians Work and Think; Joseph Henry Press (The National Academy of Sciences), 2006.

  • Poincaré’s Conjecture: The Hundred-Year Quest to Solve One of Math's Greatest Puzzles; Dutton, 2007.

  • A Mathematical Medley: Fifty easy Pieces on Mathematics; The American Mathematical Association (AMA), 2010

  • Numbers Rule: The Vexing Mathematics of Democracy, from Plato to the Present; Princeton University Press, 2010.

  • Pricing the Future: Finance, Physics, and the 300-year Journey to the Black-Scholes Equation; Basic Books 2011

Prizes & Fellowships 
Scientific Publications

(For my scientific publications, see here.)

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