Dr. Kolbe's work focuses on applied financial economics. His projects address risk, return, and regulatory policy for rate-regulated industries; income tax disputes; natural resource tax and royalty disputes; and firm, security, or project valuation questions in a wide variety of settings. Clients for this work have included federal, state/provincial, and local government agencies; national research institutes; industry organizations; and private firms in various industries. Before co-founding The Brattle Group, where he served as President and then Chairman for a number of years, he was a Director of Putnam, Hayes and Bartlett. Before that, he was a Vice President of Charles River Associates. Earlier, he spent 14 years on active duty in the U.S. Air Force. He holds a Ph.D. in Economics from the Massachusetts Institute of Technology.