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

Monopoly without tax and without price ceiling, Here from a), profit maximi...

Here from a), profit maximizing price = 7 and Q = 10. It is shown in the figure below:- The consumer surplus is shown in blue area which is given as (9-7) *10*1/2 =10 dolla

Macroeconomic models, Now we will analyse how macroeconomic variables fit t...

Now we will analyse how macroeconomic variables fit together and present models which explain the main macroeconomic variables.  Using these models we can, for instance, analyse

Advantage and disadvantage of reducing dependence, What are the pros and co...

What are the pros and cons of reducing dependence on outsourcing in order to fulfill social obligations toward stakeholders?

Unusually high period, The consumer price index for the 1978-82 periods and...

The consumer price index for the 1978-82 periods and the GDP deflator follow. This was a period of unusually high, but declining, inflation. (The CPI is equal to 100 in the base ye

Decrease the market equilibrium monthly rent, Suppose that the government w...

Suppose that the government wishes to decrease the market equilibrium monthly rent by increasing the supply of housing. Assuming that demand remains unchanged, by how many units of

Project topics, i want a project topics in macroeconomics

i want a project topics in macroeconomics

How does outsourcing affect the economy, In principle, outsourcing makes th...

In principle, outsourcing makes things a little inexpensive and enhance profitability. Though, some things require to be done 'in house'. For example, some employers (largely) outs

Baumol model, what is the role of advertising in baumol''s model?

what is the role of advertising in baumol''s model?

Production function stuff, 1. Given the following production function: ...

1. Given the following production function: Y = K1/4 L3/4 Find the following: a. Per worker production function. b. Steady-state capital-labor ratio as a function of d and

Fiscal Policy, When is a balanced budget presented?

When is a balanced budget presented?

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