A market is a group of buyers and sellers of a particular good or service. The buyers as a group determine the demand for the product, and the seller… - Greg Mankiw

The circular-flow diagram offers a simple way of organizing the economic transactions that occur between households and firms in the economy. The two loops of the circular-flow diagram are distinct but related. The inner loop represents the flows of inputs and outputs. The households sell the use of their labor, land, and capital to the firms in the markets for the factors of production. The firms then use these factors to produce goods and services, which in turn are sold to households in the markets for goods...

Although Keynes’s General Theory provides the foundation for much of our current understanding of economic fluctuations, it is important to remember that classical economics provides the right answers to many fundamental questions.

Today, Keynesian theorizing does not inspire whispers and giggles from the audience. There are many economists under the age of forty who do not take offense when their work is called ‘Keynesian’, and I count myself as one of them. If Keynesian economics was dead in 1980, then today it has been reincarnated.