tailieunhanh - Lecture Macroeconomics (19/e) - Chapter 9: Business cycles, unemployment, and inflation

After reading this chapter, you should be able to: Describe the business cycle and its primary phases, illustrate how unemployment and inflation are measured, explain the types of unemployment and inflation and their various economic impacts. | Business Cycles, Unemployment, and Inflation 09 McGraw-Hill/Irwin Copyright © 2012 by The McGraw-Hill Companies, Inc. All rights reserved. The Business Cycle Alternating increases and decreases in economic activity over time Phases of the business cycle Peak Recession Trough Expansion LO1 9- The Business Cycle Level of real output Time Peak Peak Peak Recession Recession Expansion Expansion Trough Trough Growth Trend LO1 9- Causation: A First Glance Business cycle fluctuations Economic shocks Prices are “sticky” downwards Economic response entails decreases in output and employment LO1 9- Unemployment Under 16 and/or Institutionalized ( million) Not in labor force ( million) Employed ( million) Unemployed ( million) Total population ( million) Labor force ( million) Unemployment rate = 14,265,000 154,142,000 X 100 = Unemployment rate = # of unemployed labor force X 100 LO2 9- Unemployment Criticisms of unemployment Involuntary part-time workers counted as if full-time Discouraged workers are not counted as unemployed LO2 9- Types of Unemployment Frictional unemployment Individuals searching for jobs or waiting to take jobs soon Structural unemployment Occurs due to changes in the structure of the demand for labor Cyclical unemployment Caused by the recession phase of the business cycle LO3 9- Definition of Full Employment Natural Rate of Unemployment (NRU) Full employment level of unemployment Can vary over time Demographic changes Changing job search methods Public policy changes Actual unemployment can be above or fall below the NRU LO3 9- Economic Cost of Unemployment GDP Gap GDP gap = actual GDP – potential GDP Can be negative or positive Okun’s Law Every 1% of cyclical unemployment creates a 2% GDP gap LO3 9- Economic Cost of Unemployment LO3 Economic Cost of Unemployment 9- Unequal Burdens Occupation Age Race and ethnicity Gender Education Duration LO3 9- Noneconomic Costs LO3 Loss of skills and loss of self-respect Plummeting morale Family disintegration Poverty and reduced hope Heightened racial and ethnic tensions Suicide, homicide, fatal heart attacks, mental illness Can lead to violent social and political change 9- Global Perspective LO3 9- Inflation General rise in the price level Inflation reduces the “purchasing power” of money Consumer Price Index (CPI) LO3 CPI Price of the Most Recent Market Basket in the Particular Year Price estimate of the Market Basket in 1982-1984 = x 100 CPI - = x 100 = 9- Types of Inflation Demand-Pull inflation Excess spending relative to output Central bank issues too much money Cost-Push inflation Due to a rise in per-unit input costs Supply shocks LO3 9- Redistribution Effects of Inflation Nominal income Unadjusted for inflation Real income Nominal income adjusted for inflation Anticipated vs. unanticipated income Percentage change in real income = Percentage change in nominal income Percentage change in price level LO3 9- Who is Hurt by Inflation? Fixed-income receivers Real incomes fall Savers Value of accumulated savings deteriorates Creditors Lenders get paid back in “cheaper dollars” LO3 9- Who is Unaffected by Inflation? Flexible-income receivers COLAs Social Security recipients Union members Debtors Pay back the loan with “cheaper dollars” LO3 9- Does Inflation Affect Output? Cost-push inflation Reduces real output Redistributes a decreased level of real income Demand-pull inflation One view is that zero inflation is best Another view is that mild inflation is best LO3 9-