
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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Examine the impact of a decrease in taxes using IS-LM model on the interest rates, investment and
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- You are studying an economy with an income tax rate, t1, of 32%and an MPS of 0.3. It is currently suffering from a “recessionary gap” of $500 m. (i.e., Eqm Y<Y full employment, FE, aka Yn). Make the necessary calculations for the topolicythat it should institute; who does what? Provide the full name of this policy. Compare this economy to one without income taxes to explain the term “automatic stabilizer.”[Hint: Let I change and compare the I multipliers in each of these economies.] \arrow_forwardConsider an economy described by the IS-LM model. You are given the following data: MPC = 0.6, C * = 10 AE = Y G = 75,T = 60 I(r) = 500 – 1200r M = 250, P = 5 - k(r)Y = 0.1Y – 10r (A) Write out the planned expenditure function and solve for equilibrium output as a function of the interest rate (the IS curve). (B) Using the money demand function, solve for equilibrium output given the interest rate in the money market (the LM curve). (C) Using the IS and LM curves, derive equilibrium output and the interest rate.arrow_forwardSuppose a closed economy has an aggregate consumption function given by C = 50 + 0.50Yd and generates $2500 output and income in equilibrium. Suppose also that the government spends 400 and imposes a lump-sum tax of 100. What is the level of intended investment?arrow_forward
- YAS = 742 + 15 P- 28Poil YAD = 478 - 45P + 18G Suppose initially, the Poil = $93 per barrel and government spending is equal to $630. %3D Part (a): Calculate equilibrium GDP and the price level. Part (b): Determine the magnitude of the multiplier if oil prices exogenously rise by $1. Part (c): Using 2 to 3 sentences, provide a theoretical explanation for why the multiplier you calculated in part (b) is smaller (in absolute value) than the simple multiplier. Hint: you should be mentioning how the price level impacts AE and AD variables. Part (d): Determine the magnitude of the multiplier if government spending exogenously increases by $1. Part (e): Using 2 to 3 sentences, provide a theoretical explanation for why the multiplier you calculated in part (d) is smaller than the simple multiplier. Hint: you should be mentioning how the price level impacts AE and AD variables.arrow_forwardgiving the following information C= 20+4/5Yd T=5+1/5Y I=18 and G=20 find out equilibrium levels of national income and consumption?arrow_forwardMatch the following terms ( terms are labeled 1-10 )to the correct definition(definitions are labeled a through J) aggregate consumption function, multiplier, planned aggregate expenditure (PAE), income-expenditure equlibrium GDP, marginal propensity to consume (MPC), consumption function, unplanned inventory investment, actual investment spending,inventory, autonomous spending A) The amount by which consumption rises when disposable income rise by one dollar marginal propensity to consume (MPC) B) The level of output (real GDP) at which output (real GDP) equals planned aggregate expenditure. income-expenditure equlibrium GDP C) The ratio of total change in real GDP caused by an autonomous change in aggregate spending. multiplier D) Total planned spending on final goods and services in the economy. aggregate consumption function E) The equation showing how individual household's consumer spending varies with its current disposable income. consumption function F) Consumption…arrow_forward
- Find the equilibrium level of national income in the basic Keynesian macroeconomicmodel. C = 40 + 0.5YI = 200arrow_forwardGiven the following information, S = -200 + 3Y I = 100 Calculate the national income equilibrium by using the Leakage-Injection Calculate the value of saving Draw the aggregate expenditure grapharrow_forwardIS-LM model is defined via seven equations given below: C=15+0.8(Y-T) T= -25+0.25Y I=65-R G=94 X=50-10-0.1Y L=5Y-50R M=1500 C: Consumption, Y: Income, T: Tax, I: Investment, R: Interest Rate, G: Government Expenditure, X: Net Exports, L: Money Demand and M: Money Supply. Solve this system for Y and R in the matrix format by reducing it to IS and LM equations. Calculate government and trade deficits. Note that IS-LM structure is based on Y and R.arrow_forward
- Suppose a closed economy has an aggregate consumption function given by C = 100 + 0.75Yd and generates $3000 output and income in equilibrium. Suppose also that the government spends 300 and imposes a lump-sum tax of 50. What is the level of intended investment? (round your answer to the nearest whole value)arrow_forwardConsider the Aggregate expenditure model. Where:AD = C + I + G + NX where G, and NX are all autonomous.C = C + c∗(Y + T R − T A) where T A = tY with t ∈ [0, 1] is the proportional tax rate and c∗ ∈ (0, 1) is the marginal propensity to consume. In addition, investment is given by: I = I − bi where I is autonomous investment and b > 0 determines the sensitivity ofinvestment to changes in the interest rate, i. A. Using the information above, solve for the IS function. Combine all the autonomous terms into one term, A. B. In an (x, y) plane, where Y is on the horizontal axis and i is on thevertical axis, illustrate the IS curve you derived above. Make sure to explainhow you got the Y-intercept and solve for the slope. c. How does c∗ affect the slope of the IS curve? Explain your answerintuitively. d. Consider the LM curve, where the real demand for money is such that:MD/P= kY − hi where k ∈ (0, 1) represents how sensitive the demand for money is to changesin income (or the inverse of…arrow_forwardSuppose a closed economy has an aggregate consumption function given by C = 300 + 0.75Yd and generates $3000 output and income in equilibrium. Suppose also that the government collects a lump-sum tax of 350. %D How much will the private sector be saving total in equilibrium? (round your answer to the nearest whole value)arrow_forward
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