and step-by-step explanations, it provides a clear connection between theory and policy. Highlighting aggregate supply and aggregate demand, the Fourth Edition features new sections on current issues in unemployment, inflation, growth, productivity, and fiscal and monetary policy. More so than in other texts, it provides a complete selection of applied micro topics, including chapters on agriculture, natural resources, government regulation, politics and economics. The many special features that enhance the text include: ``key concepts,'' ``key terms'' and ``key-point summaries;'' running glossaries; many charts, graphs and tables; and end-of-chapter problems.

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