S. A. Johnston

S.A. JOHNSTON is a systems analyst and designer by profession. His company, Software & Systems, specializes in inventory optimization and control systems for business. Johnston attended Yale, operating a part-time sports book and appearing on quiz programs to earn tuition. In 1972, under the tutelage of Fredric B. Fitch and Richmond Thomason, he became the first graduate of Yale to receive a BA in formal logic. In 1992, after observing the collapse of the ERM, the unfortunate forerunner of the Euro, he became interested in the analysis of risk and began formulating the beginnings of a methodical and risk-controlled approach to trading in the markets.