g A decrease in aggregate demand will cause prices to fall according to classical economists, and unemployment to increase according to Keynes. prices to fall and unemployment to increase according to both classical economists and Keynes. aggregate supply to fall according to classical economists, and prices to fall according to Keynes. aggregate supply to fall according to Keynes, and unemployment to increase according to classical economists.

The classical economists believes that a decrease in aggregate demand for goods produced would being about fall in the prices of such goods. What this implies is that as more goods are produced, if such production is not backed by corresponding demand by consumers, the prices of such goods produced will eventually fall because supply is greater than demand.

For the Keynes, their argument is that a decrease in aggregate demand will cause unemployment to increase. This is because owners of businesses or employers would lay off their employees when goods produced exceeds the demand for such production by consumers. Here, owners of businesses pays their employees through sales of goods produced. So, when the goods produced are not purchased, then there will be excess availability of such goods; hence no sale or profit, from which salaries would be paid. The next step is to start laying off employees because employers cannot cover their running costs.