The aim of these notes is to provide a concise introduction to microeconomic modeling at the advanced undergraduate level. No ﬁnal year undergraduate student in economics is expected to ﬁnd in these notes any concept or idea he is not already familiar with. These old ideas will however be presented in a way that is likely to be new to most students at that stage in the course of their curriculum. Some familiarity with the language of Mathematics will undoubtly help the reader of these notes. While a number of key mathematical results are brieﬂy pre-sented in the appendix to these notes, these results are intended for immediate reference only. In no way do they substitute an introductory course in real analysis. Sydsaeter’s Mathemat-ical Analysis is an excellent reference for economists. Those with a stronger background in Mathematics may want to use Rudin’s Principles of Mathematical Analysis instead.
All introductory textbooks on microeconomics cover most of the material found in these notes, and indeed very often more than that. Students are therefore encouraged to satisfy their curiosity by consulting alternative sources. Rubinstein’s outstanding Lecture Notes in Microeconomics for instance are freely available online. Bear in mind however that any set of notes derives as much of its added value from what it chooses to leave out as from what it eﬀectively contains. Finally, while in principle usable on a stand-alone basis, these notes are primarily designed to support lectures. Attending lectures should therefore help you improve your understanding of the material covered in the notes.