This book traces the history of macroeconomics, the evolution of macroeconomic thought, and the resulting theory and policy.The book places the various macroeconomic theories in the order in which they developed chronologically, and illustrates the similarities and differences of the models. Starting with classical economics and the Keynesian revolution, this book explores the macroeconomic theory after Keynes, open economy macroeconomics, economic policy, and sectoral functions.Financial officers and professionals making pecuniary decisions and analyses.