1844: "Leinweber searched through a United Nations database and discovered that, historically, the single best predictor of the Standard & Poor's 500 stock index was butter production in Bangladesh." Leinweber, David J. 1997. Stupid Data Mining Tricks: Over-Fitting the S&P 500." Working Paper, First Quadrant. -- Michael Perelman Economics Department California State University Chico, CA 95929
Tel. 530-898-5321 E-Mail michael at ecst.csuchico.edu