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8/13/2019 Assume That the Quantity Theory of Money Holds and That Velocity is Constant at 5
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Assume that the quantity theory of money holds and that velocity is constant at 5. Output is fixed at its full-
employment value of 10,000, and the price level is 2.
a) Determine the real demand for money and the nominal demand for money.
b) In this same economy the government fixes the nominal money supply at 5000. With output fixed at its full-
employment level and with the assumption that prices are flexible, what will be the new price level? Whathappens to the price level if the nominal money supply rises to 6000?
The quantity theory of money states that (Prices x Output = Nominal money supply x Velocity). Velocity is ameasure of how hard money 'works' (the amount of purchases a single dollar facilitates).
a) PY=MV2*10,000=M*54,000 = M (the nominal money supply/demand)
Real demand for money is defined as (Nominal Demand/Price Level). M/P = 4,000/2 = 2,000
b) i) Y=10,000 (fixed output)M= 5,000 (fixed nominal money supply)
V=5 (constant)
P=MV/YP=5,000*5/10,000P=2.5 (The price level when nominal money supply is held constant at 5,000 is 2.5)
ii) M=6,000
P=6,000*5/1,000P=3 (When the nominal money supply rises to 6,000 the price level increases to 3,ceteris paribus).
Macroeconomics, Seventh Edition Andrew B. Abel, Ben S. Bernanke, Dean Croushore
Pg 272 Long run Economic Performance
4. Assume that prices and wages adjust rapidly so that the markets for labor, goods, and assets are
always in equilibrium. What are the effects of each of the following on output, the real interest rate, and
the current price level?
a. A temporary increase in government purchases :
A temporary increase in government purchases would decrease savings, which would lead to the
government implementing higher taxes in other to math prices and wages.
This would lead for output to stay the same, Real Interest to increase and current price level to increase
as well.
b. A reduction in expected inflation.
8/13/2019 Assume That the Quantity Theory of Money Holds and That Velocity is Constant at 5
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A reduction in expected inflation would lead to an increase in real money demand because people do
not expect inflation to increase for a while. Therefore more demand creates a decrease in the price
level. Everything else stays the same. This would lead for output to stay the same, Real Interest to stay
the same and current price level to decrease.
A temporary increase in labor supply.
A temporary increase in labor supply would mean more people have jobs and therefore more people
can save. If more people save the interest rates are prone to decrease therefore money demand will
increase. . This would lead for output to increase, Real Interest to decline and current price level to
decrease.
An increase in the interest rate paid on money.: .
An increase in the interest rate paid on money will cause a higher demand of money. With the same
nominal money supply and a higher demand of money the price would decline but everything else stays
constant. This would lead for output stay the same, Real Interest to stay the same and current price
level to decrease.
Refer q14 dox
Solution: The meaning of the questions in prices and wages to adjust quickly hypothesis shows that this problem is
to construct the basic spirit of the classical school , the
To highlight the effect of intertemporal substitution of labor , so that a more complete coverage of the model , weuse the following school of thought into the RBC
Line analysis:
( 1 ) the effect of fiscal policy :
Government spending increased , causing real interest rates to rise, through the " labor market intertemporal
substitution effect " , the current increase in labor supply,
The next stage to reduce the supply of labor , thus increasing the total supply , AS curve to the right . Therefore, an
increase in government spending , resulting in increased output
Plus , real interest rates rise ; Regarding the impact on prices determined . Because of increased government
spending , total final demand of goods and services
Increase , however, through the " labor market intertemporal substitution effect " , AS also increased , the larger the
labor market if the intertemporal substitution effect ;
AS AD rate of increase is greater than the rate of increase will cause prices to fall; smaller if the labor market
intertemporal substitution effect ; AS
AD is less than the rate of increase of increase will cause inflation .
8/13/2019 Assume That the Quantity Theory of Money Holds and That Velocity is Constant at 5
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( 2 ) has a neutral monetary policy : money supply , inflation would result in the same proportion , output and real
interest rates remain
Unchanged, there is no intertemporal substitution effect occurs , labor supply will no
(3) the expected inflation rate rose:
ps5_sol IMPORTANT question 8