It is thus clear that so long as expected sales receipts of the entrepreneur (i.e., aggregate demand schedule) exceed costs (i.e., aggregate supply schedule), the level of employment should be increasing and the process will continue until expected receipts equal costs or aggregate demand curve intersects aggregate supply curve. No employment will be offered to the workers if costs are greater than receipts. Aggregate supply represents costs, while aggregate demand represents expected receipts of the entrepreneurs. That is why Keynes’ theory is known as a ‘theory of aggregate demand’. According to Keynes, in the long-run there is no problem; in the long-run, we are all dead. 10.4 because of the shifting of AD curve from AD to AD1. He is often described by economists as a revolutionary one in the sense that it was Keynes who salvaged the capitalist economy from destruction in the 1930s. Keynes’ main contribution is the demonstration that less- than-full employment equilibrium is possible and, in a capitalist economy, this is normal situation. The General Theory of Employment, Interest and Money [full text]. In other words, level of employment in a capitalist economy depends on the level of effective demand. The Keynesian theory of employment is also called the theory of income and output. In other words, the sum of consumption expenditures and investment expenditures constitute effective demand in a two-sector economy. (vi) Consumption expenditure depends upon the size of income and the propensity of consume. That is why he christened his epoch-making book: The General Theory of Employment, Interest and Money (1936). For each particular level of employment, there is an aggregate supply price. Such a redistribution of income can be achieved through progressive taxation. (ii) The investment function or the marginal efficiency of investment schedule; (iv) The quantity of money fixed by the monetary authority. Keynesian theory of employment is based on the following assumptions: (i) Keynes confines his analysis to the short-period. TOS4. Though Keynes has suggested government intervention and controlled capitalism, his theory fails to deal socialist economic system. Full employment, according to Keynes, can never be achieved. Let us start with the initial equilibrium position when income is Y0 (Rs. Book I: Introduction. According to Keynes, aggregate supply function is an increasing function of the level of employment. At the point of effective demand, aggregate supply [i.e., total value of all final goods and services produced (Y)] is equal to aggregate demand [i.e., total planned expenditures on final goods and services (C+I)]. Keynes, John Maynard, 1883-1946. 2000). Consumption (C) is a function (F) of income (Y) and the rate of interest (i). Economy’s equilibrium is at point E, which is also the point of effective demand. Prohibited Content 3. It pays no attention in the long-run problems of the dynamic economy. The employment function ; The theory of prices -- Book VI. M can be taken as given, since it is determined by the monetary authorities of a country. Total expenditure, which represents total demand for goods and services, comprises of consumption expenditure and investment expenditure. As employment increases, output and income also increase proportionately. In view of this, one can argue that the volume of employment depends on the level of national income/output. At the ON1 level of employment, expected receipts exceed necessary costs by the amount RC. Determination of Equilibrium Level 7. (ii) He assumes that there is perfect competition in the market. Book VI. Keynesian system shows two kinds of equilibria—actual employment equilibrium determined by AD and AS curves and underemployment equilibrium. Higher (lower) the level of national output, higher (lower) is the volume of employment. Keynes used his income‐expenditure model to argue that the economy's equilibrium level of output or real GDP may not corresPond to the natural level of real GDP. C-line represents consumption function. In this book, he not only criticized the classical macroeconomics, but also presented a ‘new’ theory of income and employment. This unemployment, according to Keynes, is due to deficiency of aggregate demand. Employment in this case will increase many times because of the operation of the multiplier. In Figure-7, point E is the point of effective demand where AD curve and AS curve intersect each other. 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