1-1 What Macroeconomists Study Why have some countries experienced rapid growth in incomes over the past century while others stay mired in poverty? Why do some countries have high

Public Finance Defined Public finance is about the taxing and spending activities of the government. Also known as \public sector economics\or \public economics.\ Focus is on microeconomic functions of government- polices that affect overall unemployment or price levels are left for macroeconomics

Introduction What are the three big problems macroeconomics studies? GDP -- Calculation: intermediate inventories;used;GNP Real v.s. Nominal (deflator; CPD) Okun'sLaw

The money market LM curve The theory of liquidity preference

Definition Inflation The overall increase in prices Hyperinflation: extraordinary high inflation

Topics Finish the assignment from last class Clarification for 4 questions from last class Demand for goods and services Equilibrium and the interest rate

Money Supply 100%-reserve banking Fractional-reserve banking

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