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

Consumption function of an economy, The consumption function of an economy ...

The consumption function of an economy is given by c = 200+0.75(y-t) And the investment function by I = 200 = - 25r. Government purchases G and taxes Τ are both 100.  T

Static and dynamic multipliertitle.., suppose c=a+by and investmentI is giv...

suppose c=a+by and investmentI is given.assuming mpc=.80 and I=50,find static and dynamic moel question #Minimum 100 words accepted#

True or False, 1) Consumption is positively related to stock market wealth ...

1) Consumption is positively related to stock market wealth but negatively related to taxes and tax rates.

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

What is the basic function of central banks, Q. What is the basic function ...

Q. What is the basic function of Central banks? A central bank is a public authority which is responsible for monetary policy for a country or a group of countries. Two signifi

Country personal consumption expenditures, If in some country personal cons...

If in some country personal consumption expenditures in a specific year are $50 billion, purchases of stocks and bonds are $30 billion, net exports are $-10 billion, government pur

Define the term - productivity, Define the term - Productivity Producti...

Define the term - Productivity Productivity is the concept which measures how outputs can be maximised from given inputs. In factories labour productivity is normally calculate

What are the four different measures of gdp, What are the Four different me...

What are the Four different measures of GDP Using circular flow model we see that there are 4 equivalent techniques of measuring GDP: Using the definition: market value

Inflation unemployment trade off under adaptive expectations, Explain how i...

Explain how inflation unemployment trade off is not feasible under adaptive expectations?

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