鲁迪格·多恩布什-宏观经济学（第十三版）IPPTChap001.pptVIP

IntroductionChapter #1Copyright ? 2014 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. What Is Macroeconomics?Macroeconomics is the study of the behavior of the economy as a whole and the policy measures that the government uses to influence itUtilizes measures including total output, rates of unemployment and inflation, and exchange ratesExamines the economy in the short and long runShort run: movements in the business cycleLong run: economic growth1-2 What Is Macroeconomics?Macroeconomics: aggregates individual markets ? look at markets as a wholeAD and ASIssues include unemployment, economic growthMicroeconomics: examines behavior of individual economic units (households, firms)Issues include product and input price determination1-3 Macroeconomics In Three ModelsStudy of macroeconomics is grounded in three models, each appropriate for a particular time periodVery Long Run Model: domain of growth theory ? focuses on growth of the production capacity of the economyLong Run Model: a snapshot of the very long run model, in which capital and technology are largely fixed Level of capital technology determine level of potential outputOutput is fixed, but prices determined by changes in ADShort Run Model: business cycle theoriesChanges in AD determine how much of the productive capacity is used and the level of output and unemploymentPrices are fixed in this period, but output is variable1-4 Macroeconomics In Three ModelsStudy of macroeconomics is grounded in three models, each appropriate for a particular time periodVery Long Run Model: domain of growth theory ? focuses on growth of the production capacity of the economyLong Run Model: a snapshot of the very long run model, in which capital and technology are largely fixed Level of capital technology determine level of potential outputOutput is fixed, but prices determined by changes in ADShort Run Model: business cycle theoriesCh