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Fundamental Differences Between Keynes and Classical Economists

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The main points of contrast between the Keynesian and Classical theories of Income and Employment are discussed in brief as under.
1. UNEMPLOYMENT:
The classical economists explained unemployment using traditional partial equilibrium supply and demand analysis. According to them unemployment results when there is an excess supply of labour at a particular higher wage level. By accepting lower wage, the unemployed workers will go back to their jobs and the equilibrium between demand for labour and supply of labour will be established in the labour market in the long period. This equilibrium in the economy is always associated with full employment level. According to classical economists unemployment results when the wage level of workers is above the equilibrium wage level and as a result there of, the quantity of labour supplied is higher than quantity of labour demanded. The difference between the two (supply and demand) is unemployment.
J. M Keynes and his followers, however reject the fundamental classical theory of full employment equilibrium in the economy, they consider it as unrealistic. According to them full employment is a rare phenomenon in the capitalistic economy. The unemployment occurs they say when the aggregate demand function intersects the aggregate supply function at a point of less than full employment level. Keynes suggested that in the short period, the government can raise aggregate demand in the economy through public investment programmes to reduce unemployment.
2. SAY’S LAW OF MARKET:
Say’s Law “Supply creates its own demand” is central to the classic vision of the economy. According to say the production of goods and services generates expenditure sufficient to ensure that they are sold in the market. There is no deficiency of demand for goods and hence no need to unemploy workers. According to him full employment is a normal

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