2. Model the simple Keynesian model. 9/11/2001 created a large amount of uncertainty. Consumer confidence dropped. Model and explain the effect of this event on GDP.
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- Macroeconomics question: In an economy, the government wants to increase aggregate demand by $50 billion at each price level to increase real GDP and reduce unemployment. If the MPS is 0.4, then it could increase government spending by: A. $20 billionB. $10 billionC. $40.50 billionD. $31.25 billionMacroeconomics: Assuming marginal propensity to consume is 0.5. If there is a shock to the economy that increases investment spending by 200 billion dollars what will the total Change to GDP be? (Ignore taxes and imports)Comment, on the likely outcome with sufficient arguments? a) Impact on GDP when, Interest rates have come down in the countryb) Impact on balance of payment, when there is a huge demand of vaccines produced in India in South Africa.c) Inflation rate in India reaches negative 2% (-2%)d) The aggregate demand falls short of aggregate supply in the economy
- a. What is the equilibrium rate of real GDP? $ __ billion b. If full-employment real GDP is $800 billion, what problem does this economy have? multiple choice This economy has a recessionary gap. This economy has an inflationary gap. This economy does not have a problem. c. How large is the real GDP gap? $ __ billion3. Derive the expression for government purchase multiplier in Keynesian model. If the value of G multiplier = 2.55 How do you interpret this? Explain with Graph. Apply your own understanding (based on Book N. GREGORY MANKIW 7th Edition) Not more than 13 sentence(d) Suppose government spending increases by some amount AGo to become Go+AGo. Show the change in Y and C as a response to this increase in spending.
- b. From the Intertemporal Choice Model, many theories (non-Keynesian theories ofConsumption) came into being. Using graphical and mathematical expressions, compareand contrast the following theories on consumption behaviours:i. Franco Modigliani: Life-Cycle Hypothesisii. Milton Friedman: Permanent-Income Hypothesisiii. Robert Hall: Random Walk HypothesisGiven the following consumption function, C = 400 + 0.75YD,where C= consumption expenditure, YD = disposable income, Investment= $1200, Government spending = $1600,Exports = $500, Imports = $600, Taxes = $1200 and Potential GDP = $9000Choose corrcct optiona) Aactual output is less than potential outputb) actual output is zeroc) actual output is equal to potential outputd) actual output is higher than potential outputGive an example of a concept you think may be associated with weak macroeconomic performance. Explain why this is the case. Use real-world examples and explanations. concepts lists - economics and the economic way to thinking - economic theory - scarcity -opputunity cost - market and competitive markts -supply -how markets reach equilibrium price and quantity
- Aggregate Variables Value (in billions of dollars) in the base year Consumption spending $900 Investment spending $400 Government spending $200 Transfer payments $60 The marginal propensity to save is equal to 0.4 and there are no exports or imports, (a) Calculate the real GDP in this country, Show your work (b) Calculate the marginal propensity to consume Show your work. (c) Suppose that the government increases spending from $200 billion to $300 billion (i) Calculate the maximum change in real GDP. Show your work (ii) Given the change in real GDP in part (c)(i), calculate the maximum level of the new equilibrium real GDP. Show your work (d) Suppose that taxes decrease by $100 billion. Will the maximum change in real GDP be larger than, smaller than, or equal to the change in part (c)(i)? Explain.S 5 What is found in Arthur Latter's model of the macro economy? A. The trade off between the MPC and the MPS. B. The trade off between inflation and unemployment C. The spending multiplier. D. The tradeoff between leisure and all other economic goods E. None of the above is in his modela) What generally happens to the major macroeconomic variables such as GDP, unemployment rate, and inflation rate during an economic recession? b) Define economic expansion using the reference terms of actual GDP and potential GDP. c) Explain how investment spending and interest rate related. What is the reason behind such a relationship? d) Find the correlation coefficient between interest rate and Real Investment. Does this (actual) value support the theoretical relationship between the variables? Explain. (e) Explain the importance of investment spending for the economy. Only typed answer