Keynesian Economics is an economics theory which developed by John Maynard Keynes, a British economist. Keynesian Economics’ theory was based on a circular flow of money, which refers to the idea that when spending increases in an economy, earnings also increase, which can lead to even more spending and earnings. Keynes’ ideas have spawned numerous interventionist economic policies during the Great Depression. Keynesian Economics’ supporter believes that it is the government’s job to smooth out the bumps in business cycle.
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Keynes’ theory stated that one’s person spending goes forward another person’s earnings, and when that person spends whom earnings, the person is in effect, support another person’s earnings. This business cycle helps to support a normal and functioning economy continuously.
Normally, people’s natural reaction was to hoard their money when the Great Depression hit. Under Keynesian Economics, this stopped the circular flow of money and keeping the economy at a standstill. Keynes solution for this poor economic state was to “prime out pump”. Keynes argued that the government should increase their government expenditure or spending. As an example, increase the money supply in the market during the Great Depression.
The stock market crash led to a well-known Great Depression in 1930s, the whole world was mired in the deep and prolonged recession. British economist John Maynard Keynes believed that classical economic theory did not provide a way to end depressions.
The first step of the Keynesian revolution took place in the years 1936, which was the publication of Keynes’s General Theory of Employment, Interest and Money. The General Theory challenged the established classical economics introduced important concepts such as the consumption function, the multiplier, the marginal efficiency of capital, the principle of effective demand and liquidity preference. It saw the neoclassical understanding of employment replaced with Keynes’s view that demand, and not supply, is the main factor determining levels of employment. This provided Keynes and his supporters with a theoretical basis to argue that governments should intervene to soft the severe unemployment problem.
A central aspect of the Keynesian revolution was a change in theory concerning the factors determining employment levels in the overall economy. The classical economic framework which based on Say’s Law argued that unless special conditions prevailed the free market would naturally establish full employment equilibrium with no need for government intervention. However, Keynes declared that uncertainty caused individuals and businesses to stop spending and investing, therefore governments should increase spending and cut taxes to accelerate their economies. His idea led to an economic revolutionary.
Keynes recognized that his deficit spending solution to boost “effective demand” could explode the national debt and cause inflation in the future. But he thought the government could address these problems by increasing taxes once prosperity returned.
Keynes contended that monetary policy was powerless to boost the economy out of a depression because it depended on reducing interest rates, and in a depression interest rates were already close to zero. Increased government spending, on the other hand, would not only boost demand directly but would also set off a chain reaction of increased demand from workers and suppliers whose incomes had been increased by the government’s expenditure. Similarly, a tax cut would put more disposable income in the wallets of consumers, and that too would boost demand. Keynes contended, then, that the appropriate fiscal policy during periods of high unemployment was to run a budget deficit. These ideas had an enormous impact, however, on the field of macroeconomics after the war and, to some extent, on actual fiscal policy. Keynesian fiscal policy, the management of government spending and taxation with the objective of maintaining full employment, became the centrepiece of macroeconomics both in academic research and in the public debate over national policy.
Economic Problem that Required Government Intervention
In article “IMF Executive Board Concludes 2013 Article IV Consultation with Malaysia”, Malaysia’s growth moderated but still-vigorous consumption and in the face of much needed fiscal tightening in the second half of the year. Besides, Executive Directors noted that near term growth prospects for the Malaysian economy are favourable but exposed to risks from tighter global financial conditions and slower growth in major trading partners. This still required government intervention in order to solve the problem. Government intervention includes broaden the tax base, including through the planned introduction of the Goods and Services Tax (GST) and greater reliance on property taxes.
Solution approached by Keynesian economists
Keynes argued that the solution to stimulate economy through two approaches, the first is to increase the government spending and the second is to lower the taxes. Both work by increasing aggregate expenditure. When the contractionary fiscal policy, government decreases its expenditure or raises taxes. In the article, government broaden the tax base, including through the planned introduction of the Goods and Services Tax (GST) and greater reliance on property taxes. These reforms should help secure the sustainability of Malaysia’s public finances while promoting efficiency, equity, and growth objectives.
According to Keynes theory is a rejection of Say’s law to cutting the wages and priceswould cure recessions. If the wages and prices fall, it would make the economy spiral downward. Keynes argued that wages would be ‘sticky price’. The minimum wage law is a legal wage for low-skilled labour. Moreover, Keynes disputed that an increase in wages will lead the rise in consumption and decrease in saving.
Keynes’s income- consumption model
Recalled that real GDP, this model can be divided by four components, investment (I), consumption (C), government (G) and export (X) minus import (m). The income- consumption model considers the relationship between expenditure and current real national income. The aggregate expenditure of this model equation is as follow:
AE= C + I + G + Xm
The marginal propensity to consume (MPC) is the fraction of a change in consumption divided by change in disposal income. However, the marginal propensity to saving (MPS) is the fraction of a change in saving divided by change in disposal income.
Equilibrium real GDP is the level of output whose production will create total spending equal to total consumption.
The multiplier represent that an increase in investment can cause GDP change by a larger amount. Any increase in demand would lead to more people being employed. If more people were employed, then they would spend the extra earnings
The multiplier is defined as:
Multiplier= âˆ†GDP / âˆ† spending
The larger the MPC, the greater the size of the multiplier. MPC and multiplier directly related whereas MPS and multiplier inversely related. Besides, MPC plus MPS will equal to 1.
Multiplier= 1/ 1-MPC Multiplier= 1/MPS
Keynesian inflation and recessionary theory
The equilibrium GDP and the full-employment GDP may differ. A recessionary expenditure gap is the amount which aggregate expenditure at the full-employment below to those needed to achieve the full-employment GDP. This gap will raise negative GDP. An inflation expenditure gap is the amount which aggregate expenditure at the full-employment exceeds those just sufficient to achieve the full-employment GDP. This usually term to demand-pull inflation.
Does this Intervention Effective?
Keynesian Economics Changed Over Time?
New Keynesian economics is the thought in modern macroeconomics that evolved from the ideas of John Maynard Keynes. The primary disagreement between new classical and new Keynesian economists is over how quickly wages and prices adjust. New classical economists build their macroeconomic theories on the assumption that wages and prices are flexible. They believe that prices “clear” markets. New Keynesian economists believe that market-clearing models cannot explain short-run economic instabilities, so they support models with “sticky” wages and prices.
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A long tradition in macroeconomics (including both Keynesian and monetarist perspectives) stresses that monetary policy affects employment and production in the short run because prices respond sluggishly to changes in the money supply. New classical economists criticized this tradition because it lacks a clear theoretical explanation for the sluggish behavior of prices. Much new Keynesian research attempts to remedy this oversight. In conclusion, Keynesian Economics does change over time.
Keynesian Economics is Dead Today?
Keynesian economics still has profound influence upon to the economic policies of various governments. Keynes opposed the classicist idea of free market that will lead the economic prosperity by using the aggregate demand that would lift a country out of recession and depression.
Nowadays, many countries have using the Keynesian economics by promoted their country in economic prosperity. According to Keynesian economics, the government has playing an active role in trying to shore up the economy depend on the price of the house that government increasing expenditure to build low-cost housing. Keynes has argued that the government has exceed spending by maintaining the growth of economy with full employment, effective wages, but with the side effect that it requires government spending to exceed its revenue.
In conclusion, Keynesian economics still has a strong powerful in this century, although it has over 50 years but still have useful for many countries using Keynesian economics to solve the economic recession.
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