Why gdp is determined only by aggregate demand, Macroeconomics

Assignment Help:

Q. Why GDP is determined only by aggregate demand?

Note that we haven't said anything about the aggregate supply so far. In order to justify why GDP is determined only by aggregate demand we have to explain why supply aggregate YS plays no role and why YS always would be exactly equal to YD (that is essential for the goods market to be in equilibrium).

We can explain why YS = Y* by analysing what would have happened if firms didn't supply this quantity.

1. Imagine that firms supplied and also produced a larger quantity so that Y > Y*. 

2. From the figure above, YD< Y and firms can't sell everything they produce. 

3. Unplanned stock investments will increase by Y - YD when companies are forced to put unsold products in stock. 

4. Then firms will want to lower their supply. Reduction will continue until YS = Y*.

5. If, conversely they supply and produce too little, Y < Y* and then Yd> Y. Stocks will now be decreased and firms will want to increase the supply.

Please note that Keynesian model always presumes quantity adjustment to get back to equilibrium. There are no price adjustments in the Keynesian model.


Related Discussions:- Why gdp is determined only by aggregate demand

#title., it has been argued that economic development of developing countri...

it has been argued that economic development of developing countries has been held back by a persistent fall in the terms of trade of developing countries over the long run

Fiscal policy, Fiscal Policy An Increase in Government Spending: Fi...

Fiscal Policy An Increase in Government Spending: Figure 1 Let us examine how an increase in government spending affects the interest rate and the level of income.

Concept of preference - utility function, Concept of Preference, Utility Fu...

Concept of Preference, Utility Function: Concept of Preference, Utility Function and Indifference Curve  Consumer preference ('R') specified by the above axioms can be represe

Stan garner resides in illinois, Stan Garner resides in Illinois and promot...

Stan Garner resides in Illinois and promotes boxing matches for Super sports, INC. an Illinois corporation. Garner created the connect of "ages" promotion- a three fight series of

Inherited a piece of commercial real estate, Until recently you worked as a...

Until recently you worked as an accountant, earning $30,000 annually. Then you inherited a piece of commercial real estate bringing in $12,000 in rent annually. You decided to leav

Explain about IS-LM-model, Q. Explain about IS-LM-model? The key differ...

Q. Explain about IS-LM-model? The key difference between the IS-LM model and the cross model is that nominal interest rate is exogenous in cross model on the other handit is en

How large is the money supply, Assume that the following data describe the ...

Assume that the following data describe the condition of the banking system: Total Reserves                         $200 billion Transactions Deposited          $700 billion

Change in the level of real gdp, Assume that government purchases decrease ...

Assume that government purchases decrease by $10 billion, with other factors held constant, including the price level. Calculate the change in the level of real GDP demanded for ea

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd