April 18, 2005

Business Week

Cashing in on Abe: “Collecting old letters and documents is not only fun but can also be a good invest-ment, according to a new analysis by Abraham Wyner, assistant professor of statistics at the Wharton School.Wyner’s study, commissioned by Ardmore (Pa.) dealer Steven Raab shows it’s smart to go for the best material.” (PDF)

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