Business Fluctuations

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Dictionary of Economics

Course (113 videos)

Business Fluctuations

This is "Intro to Business Fluctuations" from our Principles of Economics: Macroeconomics course.

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.

Teacher Resources

Transcript

A country's prosperity depends upon good institutions and the fundamental factors of production: Human capitalPhysical capital, and IdeasEconomic growth, however, it's not a smooth process. An economy advances and recedes, it rises and falls, it booms and busts. Real GDP in the United States, for example, it's grown at an average rate of about 3.2 % per year over the past 60 years. But the economy didn't grow at this rate every day, or every month, or even every year. We call the fluctuations in real GDP around its long-term trend or normal growth rate, Business Fluctuations.

 

Recessions are significant, widespread declines in real income and employment. Declines in employment and increases in unemployment -- they are one of the most significant economic and personal costs of a recession. More generally, during a recession not only is labor unemployed, a lot of land and capital also become unemployed or underused. And when we see a lot of unemployed resources, that suggests that resources are being wasted, it suggests that the economy is somehow operating below it's potential. We'd like to limit that waste of resources. We want everyone who wants a job to be able to get a job. We want labor and capital fully employed to produce a prosperous, growing economy.

 

In the next set of videos, we are going to develop a model of business fluctuations called the Aggregate DemandAggregate Supply model. First, we'll learn the basics of the model. Then, we'll use the model to help us understand how shocks can disturb an economy and how policy might help us to reduce the size or cost of business fluctuations. Finally, we'll apply the model to explain some of the largest economic catastrophes in U.S. history, including the Great Depression. You're on your way to mastering economics.

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