Macroeconomics Answers

What is the formula to calculate private and public savings

EXPLAIN HOW CHANGES IN EXCHANGE RATE CAN INFLUENCE EXPORTS AND IMPORTS

DRAW A DEMAND AND SUPPLY CURVE FOR BRITISH POUND (ON THE VERTICAL AXIS PLOT RAND PER BRITISHPOUND)

Cutting the deficit over the next four years​ ______.
A.
definitely decreases the number of jobs
B.
increases or decreases the number of jobs but we​ don't know for sure
C.
definitely increases the number of jobs
D.
has no effect on the number of jobs

Can determination of foreign exchange rate be found by change in demand or supply method i.e. without changing price? If no then why not ?

Uk's real GDP was 1360 trillion pounds in 2009 and 1434 trillion pounds in 2010.UK's population was 191.5 in 2009 and 193.5 in 2010. The approximate number of years it takes for real GDP per person in UK to double if the 2010 economic growth rate and population growth rate are maintained

What factors are likely to cause an increase in the demand for British pounds (in exchange for South African rands?)

Consider the following numerical example of the simple Keynesian model with no government spending, taxes or a foreign sector (all figures in R millions):
C = 100 + 0,9Y
I = 50
Answer the following questions.

What is the value of the marginal propensity to consume (MPC) in this model? [2]
Use a graph to illustrate the equilibrium level of output. [5]
Calculate the equilibrium level of output.[5]
In equilibrium, what is the value of consumption spending? Use this number to verify that the sum of C and I in equilibrium equals the value for equilibrium output you obtained [2]above.
What is the value of the multiplier in this economy?[1]
Suppose the level of output that creates full employment in the economy is 1 800. Using the multiplier, determine the level of investment spending that would create full employment in this economy.[3]

Consider the following numerical example of the simple Keynesian model with no government spending, taxes or a foreign sector (all figures in R millions):
C = 100 + 0,9Y
I = 50
Answer the following questions.

What is the value of the marginal propensity to consume (MPC) in this model? [2]
Use a graph to illustrate the equilibrium level of output. [5]
Calculate the equilibrium level of output.[5]
In equilibrium, what is the value of consumption spending? Use this number to verify that the sum of C and I in equilibrium equals the value for equilibrium output you obtained [2]above.
What is the value of the multiplier in this economy?[1]
Suppose the level of output that creates full employment in the economy is 1 800. Using the multiplier, determine the level of investment spending that would create full employment in this economy.[3]

Calculate the equilibrium level level of income if c=100 million +0.8y if ī=125 million