Gunnar TrumbullGunnar Trumbull is the Phillip Caldwell Professor of Business Administration at Harvard Business School. For the past two decades he has taught MBAs and executives in the fields of macroeconomics and economic regulation. His research and publications have focused on regulatory policy, with attention to the politics of product market regulation. Trumbull also has a background in the geosciences. Before coming to HBS, he helped found the nonprofit organization GeoHazards International, which assists countries and municipalities in response to environmental risks. In the spring of 2022, Trumbull launched the MBA course "Global Climate Change." Read More Read Less