Streetwise brings together classic articles from the publication that helped revolutionize the way Wall Street does business. During the recession of the early 1970s, investment professionals turned to the theories of a small band of mathematical economists, whose ideas on such topics as portfolio development and risk management eventually led to the reform and maintenance of entire economies. This was the first time economists and practitioners had joined forces to such remarkable effect. Economist and money manager Peter Bernstein sought to encourage this exchange when, in 1974,...