WAGES & UNEMPLOYMENT PART I Chapter 6. Trends in Real Wages and Employment 1. In the last 100 years,...
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Transcript of WAGES & UNEMPLOYMENT PART I Chapter 6. Trends in Real Wages and Employment 1. In the last 100 years,...
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WAGES & UNEMPLOYMENTPART I
Chapter 6
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Trends in Real Wages and Employment
1. In the last 100 years, all industrial countries have enjoyed substantial growth in real wages.
U.S. Workers: In 2007 the average
worker’s earning could buy twice as many goods as services as in 1960 and nearly five times as many goods and services as in 1929.
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2. Since 1970, the rate of increase in the U.S. real wage has slowed.
Real wages have increased since 1970, but at a much slower rate than prior to 1970.
Trends in Real Wages and Employment
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real wage = nominal wage/price level
The real wage is the purchasing power of the nominal wage. That is, the real wage tells us the amount of goods and services that can be purchased.
Real Wage
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1960 – 1973: 2.5% 1973 – 1996: 1.1%
1996 – 2007: 2.0%
U.S. Real Wage Growth
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3. Since 1970, the inequality in U.S. real wages has increased. A. The real wage of the least-skilled, least-educated workers has fallen since 1970. The real wages of the least-skilled workers have fallen by 25% to 30%.
B. The real wages of the most-skilled, most-educated workers have risen continually since 1970.
Trends in Real Wages and Employment
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Currently, the real income of U.S. workers with advanced (graduate) degrees is almost three (3) times higher than the real income of a high school graduate.
Trends in Real Wages and Employment
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4. Since 1970, the level of employment in the U.S. has increased substantially. That is, the number of
people with jobs has risen substantially.
Trends in Real Wages and Employment
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5. Unemployment in the U.S. has been substantially lower than in Europe.
Average unemployment: 1990-2007
5.5% in the U.S.
10.0% in France
Trends in Real Wages and Employment
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W = nominal wage
P = price level
w = real wage =W/P
N = quantity of labor
Notation
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Labor Supply: The supply of labor curve (LS) relates w to the QS of N.
Supply and Demand in the Labor Market
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LS is upward sloping; the higher w, the higher N.
Labor Supply
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Labor Supply
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Shifts in LS are primarily caused by changes in the size of the labor force.
Shifts in the Supply of Labor.
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Size of Labor Force
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The demand for labor curve (LD) relates w to the QD to N.
Labor Demand
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LD is downward sloping; the higher w, the lower N.
Labor Demand
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Labor Demand
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1. Changes in the price of the worker’s output.
2. Changes in productivity.
Shifts in the Demand for Labor
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Price of the Worker’s Output
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Productivity
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Labor Market Equilibrium
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Explaining the trends in U.S. w and N
1. Last 100 years—substantial growth in w
Primary Cause: productivity ( technology)
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Productivity
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2.(4.) Since 1970, the rate of increase in w has slowed and N has increased.
Causes:1. Smaller increases in productivity—LD
shifts outward by smaller amounts.
2. Expanding labor force—LS shifts outward.
Explaining the trends in U.S. w and N
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Small in Productivity
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Labor Force
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3) Since 1970, w inequality has increased.
Causes: 1. Globalization - expands the market for
some goods, reduces the market for others.
2. Technological change - has tended to increase the productivity of skilled workers.
Explaining the trends in U.S. w and N
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Import Goods – Unskilled Workers
Globalization
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Export Goods – Skilled Workers
Globalization
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Result: Wage distribution becomes more unequal.
Globalization
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Technology
Favored skilled labor
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LRAS gives us the relationship between inflation (π) and output (Y).
LRAS—A vertical line showing the economy’s potential output (Y*).
LRAS – Long Run Aggregate Supply
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To derive LRAS, we begin in the labor market.
We change P and see what happens to N
and Y.
Deriving LRAS
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Deriving LRAS
P
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At w1, QD > QS. There is a shortage of N. The nominal wage will be bid up until N0 is reached.
At equilibrium, w0 = W0/P0 = W1/P1.
N remains at N0. There will be no change in output.
Deriving LRAS Continued
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Using the same logic, we can draw LRAS in terms of the inflation rate (π).
Deriving LRAS Continued
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Permanent changes in the labor market will alter Y* and shift LRAS
Productivity and Labor Force
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Productivity and Labor Force
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Labor Market
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LRAS