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

Elasticity of supply, The supply equation for widgets is P = 100 + 10QS. Th...

The supply equation for widgets is P = 100 + 10QS. The elasticity of supply between quantity supplied of 9 and 11?

Economic cost of your business annually, Suppose that you decide to leave y...

Suppose that you decide to leave your current job(with a salary of $60,000) to start your own business in a building (with a market value of $400,000) you already own. You pay $45,

Energy supply, What happens to the extraction path if the choke price falls...

What happens to the extraction path if the choke price falls

Using algebra find the equilibrium price, The demand equation for champagne...

The demand equation for champagne is given by P = 10 - Q. The supply schedule for champagne is given by P = Q. Note that P denotes price per bottle in dollars, and Q is quantity me

Automatic stabilizer, what is automatic stabilizer, example with diagram or...

what is automatic stabilizer, example with diagram or graph please

International trade, Suppose home cost pricing prevails in international tr...

Suppose home cost pricing prevails in international trade, while world output is declining. Consider two economies, A and B, both having floating exchange rates and the same moneta

Intertemporal choices , ) Consider an economy where individuals live for 2 ...

) Consider an economy where individuals live for 2 periods and have prefer- ences represented by ln(c) + ß ln(c') where c and c' represent consumption in the first and second perio

Estimate the wacc and cost of capital, Cowboy Corporation is estimating its...

Cowboy Corporation is estimating its WACC.  The firm's debt structure contains: (1) 30,100 long-term bonds with an 8.1% coupon, paid semiannually, a 10 years-to-maturity, and a $10

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