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

Demand for a product, 1. Suppose the demand for a product is given by QD = ...

1. Suppose the demand for a product is given by QD = 2000 - 25P. a) Calculate the Price Elasticity of Demand when the price is $30. b) What price should the firm charge if it

Happens with the budget constraint, Suppose that Ana is buying only 2 goods...

Suppose that Ana is buying only 2 goods: good 1 and 2. If the price of good 1 doubles and the price of good 2 drops by one third, then what happens with the budget constraint? (Ass

Circula flow of economic, list and discuss the major markets and four agent...

list and discuss the major markets and four agents in the circular flow economic?

The supply and demand for oil in the us, Over the last year both the supply...

Over the last year both the supply and demand for oil in the US has gone up. What might have caused this and what happened to the price and quantity of oil?

Calculate the desired capital stock, Suppose that the desired capital stock...

Suppose that the desired capital stock is given as: K* = 0.3Y/i r Where Y = GDP, and i r is the real interest rate.  Suppose further that Y = $5 trillion and that i r

Value of this expansion project, Bruno's Lunch Counter is expanding and exp...

Bruno's Lunch Counter is expanding and expects operating cash flows of $26,000 a year for 4 years as a result. This expansion requires $39,000 in new fixed assets. These assets wil

How can we define the real wage as nominal wage, How can we define the real...

How can we define the real wage as nominal wage We define real wage as nominal wage divided by a price index (typically CPI). In the illustration above, your real wage was 20 i

Identification problem associated, Note and explain the identification prob...

Note and explain the identification problem associated with the following statement. "During Bill Clinton's presidency the US economy saw unusually strong economic growth; thus, Mr

#title. phillip curve, what does phillip curve signify? how do you reconcil...

what does phillip curve signify? how do you reconcile the difference in the shap of the curve in the short run and the long run?

Aplia Chapter Questions, Need answers for the questions (Chapters 10, 11 & ...

Need answers for the questions (Chapters 10, 11 & 12) Please see attached questions. Thanks!

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