Target Market: for the 2 semester principles of economics course. One of the all time best-sellers, this text is widely used because of its careful, streamlined, and intuitive chapter organization. Microeconomics Organization Case & Fair, present a very precise and simplified microeconomic model first, before introducing all the exceptions and subtleties of a more complex economic world. Only after this simplified model is developed, do the authors give a throrough treatment of market imperfections, externalities, public finance, and international economics. (A detailed summary of this approach can be found in the preface). Macroeconomics Organization The Keynesian Cross is an integral part of this text. Case & Fair believe strongly, that a text should use the Keynsian Cross carefully and systematically, to build up to the AD/AS model. One of the great benefits of this appoach, is that students won't mistakenly apply what they learned about simple demand and supply to aggregate demand & supply. (A detailed summary of this approach can be found in the preface)Case, Karl E. is the author of 'Principles of Economics ', published 2006 under ISBN 9780132289146 and ISBN 0132289148.