14.01 Principles of Microeconomics is an introductory undergraduate course that teaches the fundamentals of microeconomics. At MIT, this is the first course that undergraduates take in economics. For some, it may be the only course they take in the subject, and it provides a solid foundation for economic analysis and thinking that can last throughout their education and subsequent professional careers. For other students, it may provide a foundation for many years of study in economics, business, or related fields.