Topics 4 questions from before HW#1 Unemployment Natural rate of unemployment reasons for unemployment Frictional unemployment Wait unemployment Patterns of unemployment

The Data of macroeconomics * Measure of economic activity Gross Domestic Product(GDP) Total expenditure on domestically-produced final goods and services Total income earned by domestically located factors of production

Economics Studies human behavior Uncertainty ** It depends...*** on what?--- factors Why?--- intuitions How?--- logic Conclusions?

Investment Business fixed investment Equipment and structures that businesses buy to use in production Residential investment New housing that people buy to live in and that landlords buy to rent out Inventory investment Goods that business put aside in storage, including materials and supplies, work in process, and finished goods

The Open Economy in the SR The Mundell-Fleming Model Model under floating ex-rate Model under fixed ex-rate Interest-rate- differentials Debate over floating v.s. fixed ex-rate Mundell-Fleming model with changing price level Model in large open economy

The Open Economy Why do countries trade with each other? \No nation was ever ruined by trade.\ -- Benjamin Franklin More varieties; higher quality; cheaper price

The Macroeconomic Policy Debate William McChesney Martin The fed.'s job is to take away the punch bowl just as the party gets going 联储的工作是在宴会进行时拿走盛满酒的酒杯。 The economy is inherently unstable

第八章总需求函数(曲线)和总供给函数(曲线) 一、基本概念 总需求总需求函数总需求曲线总供给总供给函数总供给

一、基本概念 财政政策货币政策挤出效应财政政策乘数投资的利率系数货币

一、概念 资本投资总投资净投资资本边际效率投资边际效率加速数加 速原理乘数一加速数模型合意资本存量贴现值法资本边际效率法