Contents: Introduction: A tour of the world -- A tour of the book -- The Short run: The goods market -- Financial markets -- Goods and financial market; The IS-LM model -- Financial markets: The Extended IS-LM model -- The Medium run: The labor market -- The Phillips curve, the natural rate of unemployment and inflation -- From the short to the medium run: The IS-LM-PC model -- The Long run: The facts of growth -- Saving, capital accumulation and output -- Technological progress and growth -- Technological progress: the short, the medium and the long run -- Expectations: Financial markets and expectations -- Expectations, consumption and investment -- Expectations, output and policy -- The open economy: Openness in goods and financial markets -- The goods market in an open economy -- Output, the interest rate and the exchange rate -- Exchange rate regimes -- Back to policy: Should policy makers be restrained? Fiscal policy: a summing up -- Monetary policy: a summing up -- Epilogue: the story of macroeconomics --