Chapter 7. The Keynesian Perspective
Introduction to the Keynesian Perspective
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Economic growth doesn’t happen at a steady pace; there are ebbs and flows. Prosperity on the national level depends on a country having good institutions in place. The factors of production – human capital, physical capital, and ideas – are also critical. And these variables often change, sometime drastically.
In the United States, economic growth has averaged at about 3.2% for the past sixty years. But if you Google “US economic growth FRED,” you’ll quickly see that it’s not a smooth trend up. Instead, there are plenty of peaks and valleys, even though the U.S. has a relatively stable economy. Economists refer to these ups and downs around a country’s long-term GDP growth trend as “business fluctuations.”
“Recessions” are significant and widespread declines in employment and real income. But not only do people become unemployed during a recession, but capital and land often go un- or underused. This suggests that an economy is operating below its potential because resources are being wasted.
Recessions, large or small, are less than ideal states for an economy. We want people and resources well employed to produce more prosperity.
Over the next few videos, we’ll explore the basics of a model of business fluctuations called the aggregate demand–aggregate supply (AD-AS) model. We’ll put the model to use to look at how shocks affect an economy, and what policy can do to minimize the damage. Finally, we’ll apply the model to explain some of the largest economic catastrophes in United States’ history.
“Introduction to Business Fluctuations” video by MRU is licensed under CC BY-ND 2.0.
The Great Recession
The 2008-2009 Great Recession hit the U.S. economy hard. According to the Bureau of Labor Statistics (BLS), the number of unemployed Americans rose from 6.8 million in May 2007 to 15.4 million in October 2009. During that time, the U.S. Census Bureau estimated that approximately 170,000 small businesses closed. Mass layoffs peaked in February 2009 when employers gave 326,392 workers notice. U.S. productivity and output fell as well. Job losses, declining home values, declining incomes, and uncertainty about the future caused consumption expenditures to decrease. According to the BLS, household spending dropped by 7.8%.
Home foreclosures and the meltdown in U.S. financial markets called for immediate action by Congress, the President, and the Federal Reserve Bank. For example, the government implemented programs such as the American Restoration and Recovery Act to help millions of people by providing tax credits for homebuyers, paying “cash for clunkers,” and extending unemployment benefits. From cutting back on spending, filing for unemployment, and losing homes, millions of people were affected by the recession. While the United States is now on the path to recovery, people will feel the impact for many years to come.
What caused this recession and what prevented the economy from spiraling further into another depression? Policymakers looked to the lessons learned from the 1930s Great Depression and to John Maynard Keynes’ models to analyze the causes and find solutions to the country’s economic woes. The Keynesian perspective is the subject of this chapter.
Introduction to the Keynesian Perspective
In this chapter, you will learn about:
- The Expenditure-Output Model
- The Building Blocks of Keynesian Analysis
- The Keynesian Perspective on Market Forces
We have learned that the level of economic activity, for example output, employment, and spending, tends to grow over time. In The Keynesian Perspective we learned the reasons for this trend. The Macroeconomic Perspective pointed out that the economy tends to cycle around the long-run trend. In other words, the economy does not always grow at its average growth rate. Sometimes economic activity grows at the trend rate, sometimes it grows more than the trend, sometimes it grows less than the trend, and sometimes it actually declines. You can see this cyclical behavior in [link].
This empirical reality raises two important questions: How can we explain the cycles, and to what extent can we moderate them? This chapter (on the Keynesian perspective) and The Neoclassical Perspective explore those questions from two different points of view.
