Biography I am the George E. Warren Professor of Business at the Graduate School of Business, Columbia University, and a research scientist at Google Research. My research develops novel ...

With the Fed increasing interest rate and the stock market experiencing non-stop red days, many investors are looking for a solid and sound companies to invest in, instead of memes and hype stocks ...

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This site provides information about this course, offered in the Fall of 2025. (Last year's website for this course: GR6037_f24) Problem sets will be distributed on this website on or before Thursday ...

The story of Columbia University is one of tradition, innovation, and impact. For more than 270 years, Columbia alumni, ...

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Page last updated July 23 2020 (added Fermín Travi's adaptation of Alan Lee's Python scripts for response-specific meta-d' analysis) The original version of this webpage is archived here. MATLAB files ...

On our website, you can find out more about our faculty, our students, and our undergraduate and graduate offerings in Russian, Ukrainian, Czech, Polish, and Bosnian/Croatian/Serbian languages, ...

Jagdish Bhagwati is University Professor (Economics, Law, and International Affairs) at Columbia University and Director of the Raj Center on Indian Economic Policies. He was Senior Fellow for ...

The IBM 285 Tabulator Click each image to enlarge. IBM 285 with operator The IBM Type 285 Tabulator Photo: [4]. IBM 285 plugboard The IBM Type 285 Numeric Printing Tabulator, 1933, used in the Thomas ...

The HP-150 This early Intel 8088-based non-IBM compatible MS-DOS computer was produced by Hewlett Packard in 1983. Distinguishing features: It was the first computer to use a 3.5" rigid diskette.

1978. The Digital Equipment Corporation VT100 was the first ANSI X3.64 compliant terminal and featured lots of innovations including control by an Intel 8085 microprocessor (rather than custom ...