Solve for the short run equilibrium output using the Keynesian Model. Use the fact that Output = Y = C + I + G + X – M in equilibrium.
(a) C = Consumption function = 125 + 0.75(Y-T).
T = Net Taxes = 100.
G = Government Spending = 100.
I = Investment Spending = 120.
Closed economy.
(b) C = Consumption function = 20 + 0.75(Y – T)
T = 0.2Y
G = Government Spending = 50
I...
1A.Using the Keynesian-cross model, explain what happens to
output following a decrease in the interest rate?
1B. Using the IS-LM model, show and explain how a decrease in
taxes affects the interest rate and output.
In the expenditure–output or Keynesian cross model, the
equilibrium occurs where the aggregate expenditure line (AE line)
crosses the 45° line. Given algebraic equations for two lines, the
point where they cross can be calculated easily. Imagine an economy
with the following characteristics.
Y = Real GDP or national income
C = Consumption = 50 + 0.8Y
I = Investment = 200
G = Government spending = 100
Calculate the equilibrium level of income (Y)
Suppose G increases to 125...
1a. Derive government spending and tax multiplier in the
Keynesian-cross model using calculus
1b. Consider the model of Keynesian cross with fixed planned
investment expenditure, government spending and taxes. Assume that
consumption function is given by C=a+mpc*(Y-T), where the parameter
a >0 is called autonomous consumption, and the marginal
propensity to consume satisfies 0< mpc <1. Compute
equilibrium output (income) as a function of parameters (a and mpc)
and exogenous variables. How does equilibrium output depend on a?
mpc? Government...
1a. Derive government spending and tax multiplier in the
Keynesian-cross model using calculus
1b. Consider the model of Keynesian cross with fixed planned
investment expenditure, government spending and taxes. Assume that
consumption function is given by C=a+mpc*(Y-T), where the parameter
a >0 is called autonomous consumption, and the marginal
propensity to consume satisfies 0< mpc <1. Compute
equilibrium output (income) as a function of parameters (a and mpc)
and exogenous variables. How does equilibrium output depend on a?
mpc? Government...
Using the AD-AS model show what will happen to the equilibrium
level of output Y and the level of prices P if
a. There is an increase in oil prices.
b. The government raises taxes.
c. There is an increase in oil prices and the government
increases spending to fight a recession.
1a. Using the Keynesian-cross model, explain what happens to
output following a decrease in the interest rate? (5pts)
b. Using the IS-LM model, show and explain how a decrease in
taxes affects the interest rate and output. (5pts)
Question 1
a) Explain the effect on the equilibrium interest rate and
output level of an increase in the real money supply, state if this
is an contractionary monetary or fiscal policy and show the effect
graphically. fully label the graph (10)
b) Explain the effect on the equilibrium interest rate and
output level of a decrease in taxation. State if this is an
expansionary or contractionary monetary or fiscal policy and show
the effect graphically. (10)