Hendrik Van den Berg, Professor Emeritus, Department of Economics, University of Nebraska–Lincoln and Lecturer, Department of Economics, University of Massachusetts. This introductory textbook provides a broad introduction to the field of macroeconomics and the alternative approaches to modeling an economic system. It ultimately demonstrates that economic modeling is always a matter of choice and compromise, and no one school of thought can accurately capture the full essence of a real evolving economic system under all circumstances, in all places, and at all times in history.