Key Benefit:  Hubbard & O'Brien are still keeping it real in the third edition with new and updated coverage that reflects the current state of the economy and the recent financial meltdown.   Key Topics: MACROECONOMICS: Economics: Foundations and Models; Trade-offs, Comparative Advantage, and the Market System; Where Prices Come From: The Interaction of Demand and Supply; Economic Efficiency, Government Price Setting, and Taxes; Firms, the Stock Market, and Corporate Governance; Comparative Advantage and the Gains from International Trade; GDP: Measuring Total Production and Income; Unemployment and Inflation;  Economic Growth, the Financial System, and Business Cycles; Long-Run Economic Growth: Sources and Policies; Aggregate Expenditure and Output in the Short Run; Aggregate Demand and Aggregate Supply Analysis; Money, Banks, and the Federal Reserve System; Monetary Policy; Fiscal Policy; Inflation, Unemployment, and Federal Reserve Policy; Macroeconomics in an Open Economy; The International Financial System   Market:  For anyone in business who wants to benefit from understanding the economic forces behind their work.