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Principles of Macroeconomics for AP® Courses

12.2 The Policy Implications of the Neoclassical Perspective

Principles of Macroeconomics for AP® Courses12.2 The Policy Implications of the Neoclassical Perspective
  1. Preface
  2. 1 Welcome to Economics!
    1. Introduction
    2. 1.1 What Is Economics, and Why Is It Important?
    3. 1.2 Microeconomics and Macroeconomics
    4. 1.3 How Economists Use Theories and Models to Understand Economic Issues
    5. 1.4 How Economies Can Be Organized: An Overview of Economic Systems
    6. Key Terms
    7. Key Concepts and Summary
    8. Self-Check Questions
    9. Review Questions
    10. Critical Thinking Questions
  3. 2 Choice in a World of Scarcity
    1. Introduction to Choice in a World of Scarcity
    2. 2.1 How Individuals Make Choices Based on Their Budget Constraint
    3. 2.2 The Production Possibilities Frontier and Social Choices
    4. 2.3 Confronting Objections to the Economic Approach
    5. Key Terms
    6. Key Concepts and Summary
    7. Self-Check Questions
    8. Review Questions
    9. Critical Thinking Questions
    10. Problems
  4. 3 Demand and Supply
    1. Introduction to Demand and Supply
    2. 3.1 Demand, Supply, and Equilibrium in Markets for Goods and Services
    3. 3.2 Shifts in Demand and Supply for Goods and Services
    4. 3.3 Changes in Equilibrium Price and Quantity: The Four-Step Process
    5. 3.4 Price Ceilings and Price Floors
    6. 3.5 Demand, Supply and Efficiency
    7. Key Terms
    8. Key Concepts and Summary
    9. Self-Check Questions
    10. Review Questions
    11. Critical Thinking Questions
    12. Problems
  5. 4 Labor and Financial Markets
    1. Introduction to Labor and Financial Markets
    2. 4.1 Demand and Supply at Work in Labor Markets
    3. 4.2 Demand and Supply in Financial Markets
    4. 4.3 The Market System as an Efficient Mechanism for Information
    5. Key Terms
    6. Key Concepts and Summary
    7. Self-Check Questions
    8. Review Questions
    9. Critical Thinking Questions
    10. Problems
  6. 5 The Macroeconomic Perspective
    1. Introduction to the Macroeconomic Perspective
    2. 5.1 Measuring the Size of the Economy: Gross Domestic Product
    3. 5.2 Adjusting Nominal Values to Real Values
    4. 5.3 Tracking Real GDP over Time
    5. 5.4 Comparing GDP among Countries
    6. 5.5 How Well GDP Measures the Well-Being of Society
    7. Key Terms
    8. Key Concepts and Summary
    9. Self-Check Questions
    10. Review Questions
    11. Critical Thinking Questions
    12. Problems
  7. 6 Economic Growth
    1. Introduction to Economic Growth
    2. 6.1 The Relatively Recent Arrival of Economic Growth
    3. 6.2 Labor Productivity and Economic Growth
    4. 6.3 Components of Economic Growth
    5. 6.4 Economic Convergence
    6. Key Terms
    7. Key Concepts and Summary
    8. Self-Check Questions
    9. Review Questions
    10. Critical Thinking Questions
    11. Problems
  8. 7 Unemployment
    1. Introduction to Unemployment
    2. 7.1 How the Unemployment Rate Is Defined and Computed
    3. 7.2 Patterns of Unemployment
    4. 7.3 What Causes Changes in Unemployment over the Short Run
    5. 7.4 What Causes Changes in Unemployment over the Long Run
    6. Key Terms
    7. Key Concepts and Summary
    8. Self-Check Questions
    9. Review Questions
    10. Critical Thinking Questions
    11. Problems
  9. 8 Inflation
    1. Introduction to Inflation
    2. 8.1 Tracking Inflation
    3. 8.2 How Changes in the Cost of Living Are Measured
    4. 8.3 How the U.S. and Other Countries Experience Inflation
    5. 8.4 The Confusion Over Inflation
    6. 8.5 Indexing and Its Limitations
    7. Key Terms
    8. Key Concepts and Summary
    9. Self-Check Questions
    10. Review Questions
    11. Critical Thinking Questions
    12. Problems
  10. 9 The International Trade and Capital Flows
    1. Introduction to the International Trade and Capital Flows
    2. 9.1 Measuring Trade Balances
    3. 9.2 Trade Balances in Historical and International Context
    4. 9.3 Trade Balances and Flows of Financial Capital
    5. 9.4 The National Saving and Investment Identity
    6. 9.5 The Pros and Cons of Trade Deficits and Surpluses
    7. 9.6 The Difference between Level of Trade and the Trade Balance
    8. Key Terms
    9. Key Concepts and Summary
    10. Self-Check Questions
    11. Review Questions
    12. Critical Thinking Questions
    13. Problems
  11. 10 The Aggregate Demand/Aggregate Supply Model
    1. Introduction to the Aggregate Demand/Aggregate Supply Model
    2. 10.1 Macroeconomic Perspectives on Demand and Supply
    3. 10.2 Building a Model of Aggregate Demand and Aggregate Supply
    4. 10.3 Shifts in Aggregate Supply
    5. 10.4 Shifts in Aggregate Demand
    6. 10.5 How the AD/AS Model Incorporates Growth, Unemployment, and Inflation
    7. 10.6 Keynes’ Law and Say’s Law in the AD/AS Model
    8. Key Terms
    9. Key Concepts and Summary
    10. Self-Check Questions
    11. Review Questions
    12. Critical Thinking Questions
    13. Problems
  12. 11 The Keynesian Perspective
    1. Introduction to the Keynesian Perspective
    2. 11.1 Aggregate Demand in Keynesian Analysis
    3. 11.2 The Building Blocks of Keynesian Analysis
    4. 11.3 The Expenditure-Output (or Keynesian Cross) Model
    5. 11.4 The Phillips Curve
    6. 11.5 The Keynesian Perspective on Market Forces
    7. Key Terms
    8. Key Concepts and Summary
    9. Self-Check Questions
    10. Review Questions
    11. Critical Thinking Questions
  13. 12 The Neoclassical Perspective
    1. Introduction to the Neoclassical Perspective
    2. 12.1 The Building Blocks of Neoclassical Analysis
    3. 12.2 The Policy Implications of the Neoclassical Perspective
    4. 12.3 Balancing Keynesian and Neoclassical Models
    5. Key Terms
    6. Key Concepts and Summary
    7. Self-Check Questions
    8. Review Questions
    9. Critical Thinking Questions
    10. Problems
  14. 13 Money and Banking
    1. Introduction to Money and Banking
    2. 13.1 Defining Money by Its Functions
    3. 13.2 Measuring Money: Currency, M1, and M2
    4. 13.3 The Role of Banks
    5. 13.4 How Banks Create Money
    6. Key Terms
    7. Key Concepts and Summary
    8. Self-Check Questions
    9. Review Questions
    10. Critical Thinking Questions
    11. Problems
  15. 14 Monetary Policy and Bank Regulation
    1. Introduction to Monetary Policy and Bank Regulation
    2. 14.1 The Federal Reserve Banking System and Central Banks
    3. 14.2 Bank Regulation
    4. 14.3 How a Central Bank Executes Monetary Policy
    5. 14.4 Monetary Policy and Economic Outcomes
    6. 14.5 Pitfalls for Monetary Policy
    7. Key Terms
    8. Key Concepts and Summary
    9. Self-Check Questions
    10. Review Questions
    11. Critical Thinking Questions
    12. Problems
  16. 15 Exchange Rates and International Capital Flows
    1. Introduction to Exchange Rates and International Capital Flows
    2. 15.1 How the Foreign Exchange Market Works
    3. 15.2 Demand and Supply Shifts in Foreign Exchange Markets
    4. 15.3 Macroeconomic Effects of Exchange Rates
    5. 15.4 Exchange Rate Policies
    6. Key Terms
    7. Key Concepts and Summary
    8. Self-Check Questions
    9. Review Questions
    10. Critical Thinking Questions
    11. Problems
  17. 16 Government Budgets and Fiscal Policy
    1. Introduction to Government Budgets and Fiscal Policy
    2. 16.1 Government Spending
    3. 16.2 Taxation
    4. 16.3 Federal Deficits and the National Debt
    5. 16.4 Using Fiscal Policy to Fight Recession, Unemployment, and Inflation
    6. 16.5 Automatic Stabilizers
    7. 16.6 Practical Problems with Discretionary Fiscal Policy
    8. 16.7 The Question of a Balanced Budget
    9. Key Terms
    10. Key Concepts and Summary
    11. Self-Check Questions
    12. Review Questions
    13. Critical Thinking Questions
    14. Problems
  18. 17 The Impacts of Government Borrowing
    1. Introduction to the Impacts of Government Borrowing
    2. 17.1 How Government Borrowing Affects Investment and the Trade Balance
    3. 17.2 Fiscal Policy, Investment, and Economic Growth
    4. 17.3 How Government Borrowing Affects Private Saving
    5. 17.4 Fiscal Policy and the Trade Balance
    6. Key Terms
    7. Key Concepts and Summary
    8. Self-Check Questions
    9. Review Questions
    10. Critical Thinking Questions
    11. Problems
  19. 18 Macroeconomic Policy Around the World
    1. Introduction to Macroeconomic Policy around the World
    2. 18.1 The Diversity of Countries and Economies across the World
    3. 18.2 Improving Countries’ Standards of Living
    4. 18.3 Causes of Unemployment around the World
    5. 18.4 Causes of Inflation in Various Countries and Regions
    6. 18.5 Balance of Trade Concerns
    7. Key Terms
    8. Key Concepts and Summary
    9. Self-Check Questions
    10. Review Questions
    11. Critical Thinking Questions
    12. Problems
  20. A | The Use of Mathematics in Principles of Economics
  21. B | Indifference Curves
  22. C | Present Discounted Value
  23. Answer Key
    1. Chapter 1
    2. Chapter 2
    3. Chapter 3
    4. Chapter 4
    5. Chapter 5
    6. Chapter 6
    7. Chapter 7
    8. Chapter 8
    9. Chapter 9
    10. Chapter 10
    11. Chapter 11
    12. Chapter 12
    13. Chapter 13
    14. Chapter 14
    15. Chapter 15
    16. Chapter 16
    17. Chapter 17
    18. Chapter 18
  24. References
  25. Index
By the end of this section, you will be able to:
  • Discuss why and how inflation expectations are measured
  • Analyze the impacts of fiscal policy and monetary policy on aggregate supply and aggregate demand
  • Explain the neoclassical Phillips curve, noting its tradeoff between inflation and unemployment
  • Identify clear distinctions between neoclassical economics and Keynesian economics

To understand the policy recommendations of the neoclassical economists, it helps to start with the Keynesian perspective. Suppose a decrease in aggregate demand causes the economy to go into recession with high unemployment. The Keynesian response would be to use government policy to stimulate aggregate demand and eliminate the recessionary gap. The neoclassical economists believe that the Keynesian response, while perhaps well intentioned, will not have a good outcome for reasons we will discuss shortly. Since the neoclassical economists believe that the economy will correct itself over time, the only advantage of a Keynesian stabilization policy would be to speed up the process and minimize the time that the unemployed are out of work. Is that the likely outcome?

Keynesian macroeconomic policy requires some optimism about the ability of the government to recognize a situation of too little or too much aggregate demand, and to adjust aggregate demand accordingly with the right level of changes in taxes or spending, all enacted in a timely fashion. After all, neoclassical economists argue, it takes government statisticians months to produce even preliminary estimates of GDP so that politicians know whether a recession is occurring—and those preliminary estimates may be revised substantially later. Moreover, there is the question of timely action. The political process can take more months to enact a tax cut or a spending increase; the amount of those tax or spending changes may be determined as much by political considerations as economic ones; and then the economy will take still more months to put changes in aggregate demand into effect through spending and production. When all of these time lags and political realities are considered, active fiscal policy may fail to address the current problem, and could even make the future economy worse. The average U.S. post-World War II recession has lasted only about a year. By the time government policy kicks in, the recession will likely be over. As a consequence, the only result of government fine-tuning will be to stimulate the economy when it is already recovering (or to contract the economy when it is already falling). In other words, an active macroeconomic policy is likely to exacerbate the cycles rather than dampen them. Indeed, some neoclassical economists believe a large part of the business cycles we observe are due to flawed government policy. To learn about this issue further, read the following Clear It Up feature.

Clear It Up

Why and how are inflation expectations measured?

People take expectations about inflation into consideration every time they make a major purchase, such as a house or a car. As inflation fluctuates, so too does the nominal interest rate on loans to buy these goods. The nominal interest rate is comprised of the real rate, plus an expected inflation factor. Expected inflation also tells economists about how the public views the direction of the economy. Suppose the public expects inflation to increase. This could be the result of positive demand shock due to an expanding economy and increasing aggregate demand. It could also be the result of a negative supply shock, perhaps from rising energy prices, and decreasing aggregate supply. In either case, the public may expect the central bank to engage in contractionary monetary policy to reduce inflation, and this policy results in higher interest rates. If, on the other hand, inflation is expected to decrease, the public may anticipate a recession. In turn, the public may expect expansionary monetary policy, and the lowering of interest rates, in the short run. By monitoring expected inflation, economists garner information about the effectiveness of macroeconomic policies. Additionally, monitoring expected inflation allows for projecting the direction of real interest rates that isolate for the effect of inflation. This information is necessary for making decisions about financing investments.

Expectations about inflation may seem like a highly theoretical concept, but, in fact, inflation expectations are measured by the Federal Reserve Bank based upon early research conducted by Joseph Livingston, a financial journalist for the Philadelphia Inquirer. In 1946, he started a twice-a-year survey of economists about their expectations of inflation. After Livingston's death in 1969, the survey was continued by the Federal Reserve Bank and other economic research agencies such as the Survey Research Center at the University of Michigan, the American Statistical Association, and the National Bureau of Economic Research.

Current research by the Federal Reserve compares these expectations to actual inflation that has occurred, and the results, so far, are mixed. Economists' forecasts, however, have become notably more accurate in the last few decades. Economists are actively researching how expectations of inflation and other economic variables are formed and changed.

Link It Up

Visit this website to read “The Federal Reserve Bank of Cleveland’s Economic Commentary: A New Approach to Gauging Inflation Expectations” by Joseph G. Haubrich for more information about how expected inflation is forecast.

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The Neoclassical Phillips Curve Tradeoff

The Keynesian Perspective introduced the Phillips curve and explained how it is derived from the aggregate supply curve. The short run upward sloping aggregate supply curve implies a downward sloping Phillips curve; thus, there is a tradeoff between inflation and unemployment in the short run. By contrast, a neoclassical long-run aggregate supply curve will imply a vertical shape for the Phillips curve, indicating no long run tradeoff between inflation and unemployment. Figure 12.6 (a) shows the vertical AS curve, with three different levels of aggregate demand, resulting in three different equilibria, at three different price levels. At every point along that vertical AS curve, potential GDP and the rate of unemployment remains the same. Assume that for this economy, the natural rate of unemployment is 5%. As a result, the long-run Phillips curve relationship, shown in Figure 12.6 (b), is a vertical line, rising up from 5% unemployment, at any level of inflation. Read the following Work It Out feature for additional information on how to interpret inflation and unemployment rates.

The graph shows three aggregate demand curves that all intersect with the vertical potential GDP line at 400 on the x-axis. Line AD0 intersects at (110, 400); line AD1 intersects at (115, 400); and line AD2 intersects at (120, 400).
Figure 12.6 From a Long-Run AS Curve to a Long-Run Phillips Curve (a) With a vertical LRAS curve, shifts in aggregate demand do not alter the level of output but do lead to changes in the price level. Because output is unchanged between the equilibria E0, E1, and E2, all unemployment in this economy will be due to the natural rate of unemployment. (b) If the natural rate of unemployment is 5%, then the Phillips curve will be vertical. That is, regardless of changes in the price level, the unemployment rate remains at 5%.

Work It Out

Tracking Inflation and Unemployment Rates

Suppose that you have collected data for years on the rates of inflation and unemployment and recorded them in a table, such as Table 12.1. How do you interpret that information?

Year Inflation Rate Unemployment Rate
19702%4%
19753%3%
19802%4%
19851%6%
19901%4%
19954%2%
20005%4%
Table 12.1

Step 1. Plot the data points in a graph with inflation rate on the vertical axis and unemployment rate on the horizontal axis. Your graph will appear similar to Figure 12.7.

This graph shows several points of intersection between unemployment rates and inflation rates, one point for each year. Horizontal dashed lines extend from the y-axis at 5%, 4%, 3%, 2%, 1% and 5%. Vertical dashed lines extend from the x-axis at 2%, 3%, 4%, 6% and 4%. The points of intersection between these various lines are (2, 3); (3, 3), (4, 1); (4, 2); (4, 5); (6, 1); (5, 4).
Figure 12.7 Inflation Rates

Step 2. What patterns do you see in the data? You should notice that there are years when unemployment falls but inflation rises, and other years where unemployment rises and inflation falls.

Step 3. Can you determine the natural rate of unemployment from the data or from the graph? As you analyze the graph, it appears that the natural rate of unemployment lies at 4%; this is the rate that the economy appears to adjust back to after an apparent change in the economy. For example, in 1975 the economy appeared to have an increase in aggregate demand; the unemployment rate fell to 3% but inflation increased from 2% to 3%. By 1980, the economy had adjusted back to 4% unemployment and the inflation rate had returned to 2%. In 1985, the economy looks to have suffered a recession as unemployment rose to 6% and inflation fell to 1%. This would be consistent with a decrease in aggregate demand. By 1990, the economy recovered back to 4% unemployment, but at a lower inflation rate of 1%. In 1995 the economy again rebounded and unemployment fell to 2%, but inflation increased to 4%, which is consistent with a large increase in aggregate demand. The economy adjusted back to 4% unemployment but at a higher rate of inflation of 5%. Then in 2000, both unemployment and inflation increased to 5% and 4%, respectively.

Step 4. Do you see the Phillips curve(s) in the data? If we trace the downward sloping trend of data points, we could see a short-run Phillips curve that exhibits the inverse tradeoff between higher unemployment and lower inflation rates. If we trace the vertical line of data points, we could see a long-run Phillips curve at the 4% natural rate of unemployment.

The unemployment rate on the long-run Phillips curve will be the natural rate of unemployment. A small inflationary increase in the price level from AD0 to AD1 will have the same natural rate of unemployment as a larger inflationary increase in the price level from AD0 to AD2. The macroeconomic equilibrium along the vertical aggregate supply curve can occur at a variety of different price levels, and the natural rate of unemployment can be consistent with all different rates of inflation. The great economist Milton Friedman (1912–2006) summed up the neoclassical view of the long-term Phillips curve tradeoff in a 1967 speech: “[T]here is always a temporary trade-off between inflation and unemployment; there is no permanent trade-off.”

In the Keynesian perspective, the primary focus is on getting the level of aggregate demand right in relationship to an upward-sloping aggregate supply curve. That is, AD should be adjusted so that the economy produces at its potential GDP, not so low that cyclical unemployment results and not so high that inflation results. In the neoclassical perspective, aggregate supply will determine output at potential GDP, unemployment is determined by the natural rate of unemployment churned out by the forces of supply and demand in the labor market, and shifts in aggregate demand are the primary determinant of changes in the price level.

Link It Up

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Fighting Unemployment or Inflation?

As explained in Unemployment, unemployment can be divided into two categories: cyclical unemployment and the natural rate of unemployment, which is the sum of frictional and structural unemployment. Cyclical unemployment results from fluctuations in the business cycle and is created when the economy is producing below potential GDP—giving potential employers less incentive to hire. When the economy is producing at potential GDP, cyclical unemployment will be zero. Because of the dynamics of the labor market, in which people are always entering or exiting the labor force, the unemployment rate never falls to 0%, not even when the economy is producing at or even slightly above potential GDP. Probably the best we can hope for is for the number of job vacancies to equal the number of job seekers. We know that it takes time for job seekers and employers to find each other, and this time is the cause of frictional unemployment. Most economists do not consider frictional unemployment to be a “bad” thing. After all, there will always be workers who are unemployed while looking for a job that is a better match for their skills. There will always be employers that have an open position, while looking for a worker that is a better match for the job. Ideally, these matches happen quickly, but even when the economy is very strong there will be some natural unemployment and this is what is measured by the natural rate of unemployment.

The neoclassical view of unemployment tends to focus attention away from the problem of cyclical unemployment—that is, unemployment caused by recession—while putting more attention on the issue of the rates of unemployment that prevail even when the economy is operating at potential GDP. To put it another way, the neoclassical view of unemployment tends to focus on how public policy can be adjusted to reduce the natural rate of unemployment. Such policy changes might involve redesigning unemployment and welfare programs so that they support those in need, but also offer greater encouragement for job-hunting. It might involve redesigning business rules with an eye to whether they are unintentionally discouraging businesses from taking on new employees. It might involve building institutions to improve the flow of information about jobs and the mobility of workers, to help bring workers and employers together more quickly. For those workers who find that their skills are permanently no longer in demand (for example, the structurally unemployed), policy can be designed to provide opportunities for retraining so that these workers can reenter the labor force and seek employment.

Neoclassical economists will not tend to see aggregate demand as a useful tool for reducing unemployment; after all, if economic output is determined by a vertical aggregate supply curve, then aggregate demand has no long-run effect on unemployment. Instead, neoclassical economists believe that aggregate demand should be allowed to expand only to match the gradual shifts of aggregate supply to the right—keeping the price level much the same and inflationary pressures low.

If aggregate demand rises rapidly in the neoclassical model, in the long run it leads only to inflationary pressures. Figure 12.8 shows a vertical LRAS curve and three different levels of aggregate demand, rising from AD0 to AD1 to AD2. As the macroeconomic equilibrium rises from E0 to E1 to E2, the price level rises, but real GDP does not budge; nor does the rate of unemployment, which adjusts to its natural rate. Conversely, reducing inflation has no long-term costs, either. Think about Figure 12.8 in reverse, as the aggregate demand curve shifts from AD2 to AD1 to AD0, and the equilibrium moves from E2 to E1 to E0. During this process, the price level falls, but, in the long run, neither real GDP nor the natural rate of unemployment is changed.

The graph shows three aggregate demand curves that all intersect with the vertical potential GDP line at around 62 on the x-axis, but at different price levels.
Figure 12.8 How Aggregate Demand Determines the Price Level in the Long Run As aggregate demand shifts to the right, from AD0 to AD1 to AD2, real GDP in this economy and the level of unemployment do not change. However, there is inflationary pressure for a higher price level as the equilibrium changes from E0 to E1 to E2.

Link It Up

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Fighting Recession or Encouraging Long-Term Growth?

Neoclassical economists believe that the economy will rebound out of a recession or eventually contract during an expansion because prices and wage rates are flexible and will adjust either upward or downward to restore the economy to its potential GDP. Thus, the key policy question for neoclassicals is how to promote growth of potential GDP. We know that economic growth ultimately depends on the growth rate of long-term productivity. Productivity measures how effective inputs are at producing outputs. We know that U.S. productivity has grown on average about 2% per year. That means that the same amount of inputs produce 2% more output than the year before. We also know that productivity growth varies a great deal in the short term due to cyclical factors. It also varies somewhat in the long term. From 1953–1972, U.S. labor productivity (as measured by output per hour in the business sector) grew at 3.2% per year. From 1973–1992, productivity growth declined significantly to 1.8% per year. Then, from 1993–2014, productivity growth increased slightly to 2% per year. The neoclassical economists believe the underpinnings of long-run productivity growth to be an economy’s investments in human capital, physical capital, and technology, operating together in a market-oriented environment that rewards innovation. Promotion of these factors is what government policy should focus on.

Summary of Neoclassical Macroeconomic Policy Recommendations

Let’s summarize what neoclassical economists recommend for macroeconomic policy. Neoclassical economists do not believe in “fine-tuning” the economy. They believe that economic growth is fostered by a stable economic environment with a low rate of inflation. Similarly, tax rates should be low and unchanging. In this environment, private economic agents can make the best possible investment decisions, which will lead to optimal investment in physical and human capital as well as research and development to promote improvements in technology.

Summary of Neoclassical Economics versus Keynesian Economics

Table 12.2 summarizes the key differences between the two schools of thought.

Summary Neoclassical Economics Keynesian Economics
Focus: long-term or short term Long-term Short-term
Prices and wages: sticky or flexible? Flexible Sticky
Economic output: Primarily determined by aggregate demand or aggregate supply? Aggregate supply Aggregate demand
Aggregate supply: vertical or upward-sloping? Vertical Upward-sloping
Phillips curve vertical or downward-sloping Vertical Downward sloping
Is aggregate demand a useful tool for controlling inflation? Yes Yes
What should be the primary area of policy emphasis for reducing unemployment? Reform labor market institutions to reduce natural rate of unemployment Increase aggregate demand to eliminate cyclical unemployment
Is aggregate demand a useful tool for ending recession? At best, only in the short-run temporary sense, but may just increase inflation instead Yes
Table 12.2 Neoclassical versus Keynesian Economics
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