He was formally an investment banker and derivatives portfolio manager and has consulted to many financial institutions and municipalities. He is the coauthor of Municipal Derivative Securities: Uses and Valuation and Streetsmart Guide to Valuing a Stock. Martin Thomas, Ph.D. is a principal at Applied Finance Partners, LLC. He is an Executive in Residence at Drexel University where he teaches graduate courses in Finance in the LeBow College of Business. A former financial services executive, he has extensive expertise helping companies to develop value-based approaches to financial decision making.