STEPHEN R. FOERSTER is an author and finance professor at the Ivey Business School at Western University in London, Ontario, Canada. He has a PhD from the Wharton School, University of Pennsylvania and a Chartered Financial Analyst designation. His previous books include Financial Management: A Primer; Financial Management: Concepts and Applications; and In Pursuit of the Perfect Portfolio: The Stories, Voices, and Key Insights of the Pioneers who Shaped the Way We Invest (with Andrew W. Lo), which won the Axiom Personal Finance category silver medal. His next project: writing the authorized biography of William Sharpe, 1990 recipient of the Nobel Prize in Economics.