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Do you know what a recession is? Here's how we'll know when the next one hits

VIDEO10:0210:02
Here's why economists are worried about a recession

A slew of weak economic data, increasing trade tensions and slowing GDP growth have flashed signs of an economic slowdown.

No one can predict exactly when a recession will occur. If the U.S. economy is in a recession, how will we know?

The National Bureau of Economic Research, a nonprofit research organization, defines a recession as the period between a peak and a trough of economic activity. The organization doesn't give a set definition of economic activity but looks to indicators such as domestic production, employment and retail sales.

Another commonly accepted definition of a recession is two consecutive quarters of negative GDP growth.

But not all economists agree that gross domestic product is the best way to measure the economy.

"GDP tells us how big the size of the pie is," says Justin Wolfers, professor of economics and public policy at the University of Michigan. "It doesn't tell us where the people are getting fair slices. So we should care about the distribution of income, not just how much of it there is."

Watch the video above to learn more about the economic indicators seven economists are watching.

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