Jonathan Gruber, teaching MIT's 14.41 Public Finance and Public Policy, lectures on how corporations are taxed and why the system might be reformed. He covers the incidence of the corporate income tax, who actually bears its burden once wages and prices adjust, and how the tax interacts with investment and capital decisions. The lecture builds toward the case for a flatter, simpler tax code, weighing the efficiency gains of broadening the base and lowering rates against equity concerns and the political obstacles to reform. Gruber works through the standard economic arguments with blackboard explanation and examples drawn from real policy debates, in the style of the rest of the fall 2024 course. This is lecture 24 of the semester, assuming familiarity with the course's earlier treatment of taxation, and it runs just under an hour.