<p>14.01 Principles of Microeconomics is an introductory undergraduate MIT course, published free on MIT OpenCourseWare from the Fall 2023 offering taught by Prof. Jonathan Gruber. It covers the core building blocks of microeconomics: supply and demand, market equilibrium, consumer theory, production and the behaviour of firms, monopoly and oligopoly, welfare economics, public goods, and externalities.</p><ul><li>Level: MIT undergraduate introductory economics</li><li>Cost: free; all materials are released under a Creative Commons licence</li><li>Materials included: video lectures, lecture notes and handouts, problem sets with solutions, exams with solutions, and instructor insights</li><li>Eligibility: open to anyone; no registration, prerequisites, or application required</li><li>Credential: none — MIT OpenCourseWare does not grant certificates or course credit</li></ul><p>Learners access the materials directly on the OCW site and study at their own pace.</p>