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

Subsequent withdrawals increase, What is the amount of five equal annual de...

What is the amount of five equal annual deposits that can provide five annual withdrawals, where a first withdrawal of $1500 is made at the end of year six and subsequent withdrawa

Discuss about the keynesian economists, Discuss about the Keynesian economi...

Discuss about the Keynesian economists The Keynesian economist A. W. Phillips developed short-run Phillips curve analysis in the 1950s. Phillips had researched the relationshi

National income, # ???? .. difference between gdp at market price and nnp...

# ???? .. difference between gdp at market price and nnp at factor cost

Compute the lost social welfare, Consider a market where supply and demand ...

Consider a market where supply and demand are given by QXS = -18 + PX and QXd = 90 - 2PX. Suppose the government imposes a price floor of $41, and agrees to purchase any and all un

Aggregate supply (as), Aggregate Supply (AS) We now shift our attentio...

Aggregate Supply (AS) We now shift our attention to the supply side of the macroeconomy. Aggregate supply explains the production and pricing side of the economy and the behav

Investment., whwt is the difference between the fixed accelerator and the f...

whwt is the difference between the fixed accelerator and the flexible accelerator theories of investment?

Kinked demand curve, disuss with an aid of a diagram the kinked demand cur...

disuss with an aid of a diagram the kinked demand curve

Balance between automation and labor, Businesses often decide between using...

Businesses often decide between using automation and labor in production. An automotive environment may have high fixed costs and low variable costs, and an industry that utilizes

Define price elasticity of demand, Suppose arm's demand curve is given by P...

Suppose arm's demand curve is given by P = 120? Find the (value of) price elasticity of demand (point elasticity) for the demand curve when the price is $100. Is demand elastic or

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