From Medium August 08, 2019 Steven William Zwick Harris Public Policy Professor Michael Greenstone Harris Public Policy Professor Michael Greenstone and Assistant Professor Steve Cicala were featured in Medium, discussing how Milton Friedman would have recognized the externalities associated with pollution and support a carbon tax, in keeping with his views and actions. Harris Public Policy Assistant Professor Steve Cicala The question of carbon pricing will remain relevant until it is adopted. "Those costs [of carbon] are real," Cicala said. "And they're not being reflected in the price I pay when I fill my gas tank or turn on the light." "It's kind of a fiction to think that markets exist on their own," said Greenstone. "They exist because government creates ground rules for them to operate in." Full coverage available at Medium. Upcoming Events More events Policy Research and Innovation Bootcamp (PRIB) Policy Hackathon Challenge Deep Dive Tue., February 10, 2026 | 12:00 PM Preparing for Harris: Teaching Assistantships Wed., February 11, 2026 | 8:30 AM Coffee Chat in Western Massachusetts Wed., February 11, 2026 | 9:00 AM Tunnel City Coffee 100 Spring St #102 Williamstown, MA 01267 United States