Microeconomic Analysis has been a fixture of graduate programs in economics for fifteen years. It has held this position because it has the authority, the clarity, and the breadth necessary for a classic text. This new Third Edition continues to supply the building blocks of microeconomic analysis: a thorough treatment of optimization and equilibrium methods, coupled with numerous examples of their application. The Third Edition expands on the earlier editions in two ways. First, the existing coverage has been rewritten and rearranged. Second, new chapters have been added on game theory, oligopoly, asset markets, and information economics. The rearrangement follows the model of Hal Varian's Intermediate Microeconomics: a number of short chapters, each devoted to a single topic. In fact, the topical division is as close as possible to that of the undergraduate text. This makes it easy to review undergraduate material before moving on to graduate material. The new chapters highlight significant developments in microeconomic theory in the last ten years at a level that is accessible for first-year graduate students.