8 chapter: >> Unemployment and Inflation Krugman/Wells

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8 chapter: >> Unemployment and Inflation Krugman/Wells ©2009  Worth Publishers 1

How unemployment is measured and how the unemployment rate is calculated The significance of the unemployment rate for the economy The relationship between the unemployment rate and economic growth The factors that determine the natural rate of unemployment

The economic costs of inflation How inflation and deflation create winners and losers Why policy makers try to maintain a stable rate of inflation

Unemployment Rate Employment is the number of people currently employed in the economy, either full time or part time. Unemployment is the number of people who are actively looking for work but aren’t currently employed. The labor force is equal to the sum of employment and unemployment.

Unemployment Rate The unemployment rate is the percentage of the total number of people in the labor force who are unemployed. The labor force participation rate is the percentage of the population aged 16 or older that is in the labor force.

Unemployment Rate The U.S. Unemployment Rate, 1948-2008 12% 10 8 6 4 2 Figure Caption: Figure 8-1: The U.S. Unemployment Rate, 1948-2008 The unemployment rate has fluctuated widely over time. It always rises during recessions, which are shown by the shaded bars. It usually, but not always, falls during periods of economic expansion. Source: Bureau of Labor Statistics; National Bureau of Economic Research 1948 1960 1970 1980 1990 2000 2008 Year 6

Unemployment Rate Discouraged workers are nonworking people who are capable of working but have given up looking for a job given the state of the job market. Marginally attached workers would like to be employed and have looked for a job in the recent past but are not currently looking for work. Underemployment is the number of people who work part time because they cannot find full-time jobs.

Unemployment Rate Alternative Measures of Unemployment, 1994-2008 Percentage of labor force 12% 10 8 6 4 2 Figure Caption: Figure 8-2: Alternative Measures of Unemployment, 1994-2008 The unemployment number usually quoted in the news media counts someone as unemployed only if he or she has been looking for work during the past four weeks. Broader measures also count discouraged workers, marginally attached workers, and the underemployed. These broader measures show a higher unemployment rate—but they move closely in parallel with the standard rate. Source: Bureau of Labor Statistics. 1994 1996 1998 2000 2002 2004 2006 2008 Year 8

Unemployment Rate Unemployment Rates of Different Groups, 2007 35% 30 25 20 15 10 5 31.2% 14.4% Figure Caption: Figure 8-3: Unemployment Rates of Different Groups, 2007 Unemployment rates vary greatly among different demographic groups. For example, although the overall unemployment rate in August 2007 was 4.7%, the unemployment rate among African-American teenagers was 31.2%. As a result, even during periods of low overall unemployment, unemployment remains a serious problem for some groups. Source: Bureau of Labor Statistics. 7.7% 4.7% Overall African-Amerian White teenager African-Amerian teenager 9

Unemployment and Recessions, 1978-2008 Unemployment Rate Unemployment and Recessions, 1978-2008 Unemployment Rate 12% 10 8 6 4 2 Figure Caption: Figure 8-4: Unemployment and Recessions, 1978-2008 This figure shows a close-up of the unemployment rate for the past 30 years, with the shaded bars indicating recessions. It’s clear that unemployment always rises during recessions and usually falls during expansions. But in both the early 1990s and the early 2000s, unemployment continued to rise for some time after the recession was officially declared over. Source: Bureau of Labor Statistics; National Bureau of Economic Research. 1980 1985 1990 1995 2000 2005 2008 Year 10

Change in unemployment Unemployment Rate Growth and Changes in Unemployment, 1949-2007 Change in unemployment rate (percentage points) 4 3 2 1 −1 −2 −3 Figure Caption: Figure 8-5: Growth and Changes in Unemployment, 1949-2007 Each dot shows the growth rate of the economy and the change in the unemployment rate for a specific year between 1949 and 2007. For example, in 2000 the economy grew 3.7% and the unemployment rate fell 0.2 percentage points, from 4.2% to 4.0%. In general, the unemployment rate fell when growth was above its average rate of 3.4% a year and rose when growth was below average. Unemployment always rose when real GDP fell. Source: Bureau of Labor Statistics; Bureau of Economic Analysis. −4 −2 0 2 3.4 4 6 8 10% Average growth rate, 1949–2007 Real GDP growth rate 11

Rocky Mountain Low In addition to estimating the unemployment rate for the nation as a whole, the U.S. government also estimates unemployment rates for each state. In July 2007 the unemployment rate in Montana, like that in other mountain states, was very low: just 2.7%. Meanwhile, Michigan had a 7.2% unemployment rate. Montana was doing well mainly because the state’s booming oil business was creating new jobs even as the state’s aging population reduced the size of the labor force. Michigan was at the opposite extreme. Layoffs by auto manufacturers, the traditional mainstay of Michigan’s economy, had given the state the highest unemployment rate in the nation: 7.2% in July 2007.

Unemployment Rates Across America, July 2007 Figure Caption: Figure 8-6: Unemployment Rates Across America, July 2007 At any given time, unemployment rates vary considerably among states. In July 2007 the unemployment rate in Montana, like that in other mountain states, was very low: just 2.7%. Meanwhile, Michigan had a 7.2% unemployment rate. Source: Bureau of Labor Statistics. 13

The Nature of Unemployment Workers who spend time looking for employment are engaged in job search. Frictional unemployment is unemployment due to the time workers spend in job search. Structural unemployment is unemployment that results when there are more people seeking jobs in a labor market than there are jobs available at the current wage.

The Nature of Unemployment Distribution of the Unemployed by Duration Figure Caption: Figure 8-7: Distribution of the Unemployed by Duration of Unemployment, 2000 In years when the unemployment rate is low, most unemployed workers are unemployed for only a short period. In 2000, a year of low unemployment, 45% of the unemployed had been unemployed for less than 5 weeks and 77% for less than 15 weeks. The short duration of unemployment for most workers suggests that most unemployment in 2000 was frictional. Source: Bureau of Labor Statistics. 15

Structural Unemployment The Effect of a Minimum Wage on the Labor Market Wage Rate Structural unemployment W F Minimum wage W E Figure Caption: Figure 8-8: The Effect of a Minimum Wage on the Labor Market When the government sets a minimum wage, WF, that exceeds the market equilibrium wage rate, WE, the number of workers, QS, who would like to work at that minimum wage is greater than the number of workers, QD, demanded at that wage rate. This surplus of labor is considered structural unemployment. Quantity of Labor Q Q Q D E S 16

Structural Unemployment Minimum wages - a government-mandated floor on the price of labor. In the U.S., the national minimum wage in 2005 was $5.15 an hour. Unions - by bargaining for all a firm’s workers collectively (collective bargaining), unions can often win higher wages from employers than the market would have otherwise provided when workers bargained individually.

Structural Unemployment Efficiency wages - wages that employers set above the equilibrium wage rate as an incentive for better performance. Side effects of government policies - public policies designed to help workers who lose their jobs; these policies can lead to structural unemployment as an unintended side effect.

The Natural Rate of Unemployment The natural rate of unemployment is the normal unemployment rate around which the actual unemployment rate fluctuates. It is the unemployment rate that arises from the effects of frictional plus structural unemployment. Cyclical unemployment is a deviation in the actual rate of unemployment from the natural rate.

The Natural Rate of Unemployment Natural unemployment = Frictional unemployment + Structural unemployment Actual unemployment = Natural unemployment + Cyclical unemployment

Natural Unemployment around the OECD Global Comparison: The Organization for Economic Cooperation and Development (OECD) is an association of relatively wealthy countries, mainly in Europe and North America but also including Japan, Korea, New Zealand, and Australia. Among other activities, the OECD collects data on unemployment rates in its member nations using the U.S. definition. The figure shows average unemployment, which is a rough estimate of the natural rate of unemployment, for select OECD members, over the period 1996–2006. The purple bar in the middle shows the average across all countries. The U.S. natural rate of unemployment appears to be somewhat below average; those of many European countries (including the major economies of Germany, Italy, and France) are above average. Many, but not all, economists think that persistently high European unemployment rates are the result of government policies, such as high minimum wages and generous unemployment benefits, which both discourage employers from offering jobs and discourage workers from accepting jobs, leading to high rates of structural unemployment. Source: OECD. 21

Changes in the Natural Rate of Unemployment The Changing Makeup of the U.S. Labor Force Percent of labor force 50% 40 30 20 10 Figure Caption: Figure 8-9: The Changing Makeup of the U.S. Labor Force, 1948-2007 In the 1970s the percentage of the labor force consisting of women rose rapidly, as did the percentage under age 25. These changes reflected the entry of large numbers of women into the paid labor force for the first time and the fact that baby boomers were reaching working age. The natural rate of unemployment may have risen because many of these workers were relatively inexperienced. Today, the labor force is much more experienced, which is one possible reason the natural rate has fallen since the 1970s. Source: Bureau of Labor Statistics. 1948 1960 1970 1980 1990 2000 2007 Year 22

An Unemployment Lockdown? Most analysts believe that the natural rate of unemployment in the United States has fallen substantially since 1980; the Congressional Budget Office estimate has fallen from 6.2% to 4.8%. One factor is that many of those who would otherwise be counted as unemployed may be behind bars. Largely owing to changes in law enforcement strategies, the number of American adults in jail or prison has risen from 503,586 in 1980, or 0.5% of the labor force, to 2.3 million, or 1.5% of the labor force, in 2007. The rise in the prison population might have lopped about 0.2 percentage points off the natural rate of unemployment.

Structural Unemployment in Eastern Germany A spontaneous popular uprising in 1989 overthrew the communist dictatorship in East Germany. After reunification, employment in East Germany plunged. The economy of the former East Germany has remained persistently depressed, with an unemployment rate of more than 16% in 2008. East Germany found itself suffering from severe structural unemployment. When Germany was reunified, it became clear that workers in East Germany were much less productive than their cousins in the west. The result has been a persistently large mismatch between the number of workers demanded and the number of those seeking jobs.

Inflation and Deflation The real wage is the wage rate divided by the price level. Real income is income divided by the price level.

Inflation and Deflation The Price Level versus the Inflation Rate, 1968-2008 Price Level Inflation rate 250 200 150 100 50 16% 14 12 10 8 6 4 2 Figure Caption: Figure 8-10: The Price Level versus the Inflation Rate, 1968-2008 Over the past 40 years, the consumer price index has continuously gone up. But the inflation rate—the rate at which consumer prices are rising—has had both ups and downs. Source: Bureau of Labor Statistics. 1968 1970 1980 1990 2000 2008 Year 26

Inflation and Deflation Shoe-leather costs are the increased costs of transactions caused by inflation. Menu cost is the real cost of changing a listed price.

Inflation and Deflation Unit-of-account costs arise from the way inflation makes money a less reliable unit of measurement. The nominal interest rate is the interest rate expressed in dollar terms. The real interest rate is the nominal interest rate minus the rate of inflation. Disinflation is the process of bringing the inflation rate down.

Inflation and Deflation The Cost of Disinflation Inflation rate Inflation rate 12% 10 8 6 16% 14 12 10 8 6 4 2 Figure Caption: Figure 8-11: The Cost of Disinflation The U.S. inflation rate peaked in 1980, and then fell sharply. Progress against inflation was, however, accompanied by a temporary but very large increase in the unemployment rate, demonstrating the high cost of disinflation. Source: Bureau of Labor Statistics. 1978 1980 1982 1984 1986 1988 Year 29

Israel’s Experience with Inflation In the mid-1980s, Israel experienced a “clean” inflation: there was no war, the government was stable, and there was order in the streets. But policy errors led to very high inflation. The shoe-leather costs of inflation were substantial. Israelis spent a lot of time moving money in and out of bank accounts that provided high enough interest rates to offset inflation. Businesses made efforts to minimize menu costs. For example, restaurant menus often didn’t list prices. It was hard for Israelis to make decisions because prices changed so much and so often.

Inflation and unemployment are the main concerns of macroeconomic policy. Employment is the number of people employed; unemployment is the number of people unemployed and actively looking for work. Their sum is equal to the labor force, and the labor force participation rate is the percentage of the population age 16 or older that is in the labor force. 3. The unemployment rate can overstate because it counts as unemployed those who are continuing to search for a job despite having been offered one (that is, workers who are frictionally unemployed). It can understate because it ignores frustrated workers, such as discouraged workers, marginally attached workers, and the underemployed.

The unemployment rate is affected by the business cycle The unemployment rate is affected by the business cycle. The unemployment rate generally falls when the growth rate of real GDP is above average and generally increases when the growth rate of real GDP is below average. Job creation and destruction, as well as voluntary job separations, lead to job search and frictional unemployment. In addition, a variety of factors such as minimum wages, unions, efficiency wages, and government policies designed to help laid-off workers result in a situation in which there is a surplus of labor at the market wage rate, creating structural unemployment. As a result, the natural rate of unemployment, the sum of frictional and structural employment, is well above zero, even when jobs are plentiful.

The actual unemployment rate is equal to the natural rate of unemployment plus cyclical unemployment. The natural rate of unemployment changes over time. Policy makers worry about inflation as well as unemployment. Inflation does not, as many assume, make everyone poorer by raising the level of prices. That's because wages and incomes are adjusted to take into account a rising price level, leaving real wages and real income unaffected. However, a high inflation rate imposes overall costs on the economy: shoe-leather costs, menu costs, and unit-of-account costs.

Inflation can produce winners and losers within the economy, because long-term contracts are generally written in dollar terms. Loans typically specify a nominal interest rate, which differs from the real interest rate due to inflation. A higher-than-expected inflation rate is good for borrowers and bad for lenders. A lower-than expected inflation rate is good for lenders and bad for borrowers. Disinflation is very costly, so policy makers try to prevent inflation from becoming excessive in the first place.

Long-Run Economic Growth The End of Chapter 8 coming attraction: Chapter 9: Long-Run Economic Growth