Keynesian Economics

What Does Keynesian Economics Mean?
An economic theory stating that active government intervention in the marketplace and monetary policy is the best method of ensuring economic growth and stability.

Investopedia explains Keynesian Economics
A supporter of Keynesian economics believes it is the government's job to smooth out the bumps in business cycles. Intervention would come in the form of government spending and tax breaks in order to stimulate the economy, and government spending cuts and tax hikes in good times, in order to curb inflation.