Q2. Suppose the U.S. economy is represented by the following equations.Z=C+I+GC = 300+.5 YDT = 400I = 200YD = Y-T G = 1000(a) Given the above variables, calculate the equilibrium level of output (Y).(b) Using the graph below, illustrate the equilibrium level of output for the economy.Aggregate Demand (Z)450(c) Now assume that consumer confidence increases causing an increase in autonomousconsumption from 300 to 400. What is the new equilibrium level of output?(d) How much does income change as a result of this event? What is the multiplier for thiseconomy?(e) Graphically illustrate (in the above graph) the effects of the change in autonomousconsumption on the aggregate demand line and equilibrium Y. Clearly indicate in yourgraph the initial and final equilibrium levels of output.(f) Briefly explain why this increase in output is greater than the initial increase in autonomousconsumption.

Given: Z = C + I + GC = 300 + 0.5YDT = 400I = 200YD = Y - TG = 1000 (a)Let us begin by substituting…

Answered: Q2. Suppose the U.S. economy is…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Analysts say that the increase in gasoline prices comes a drop in SUV sales and trade-in values at dealerships.The U.S. Department of energy said that during the past week, U.S. gasoline topped $3 a gallon - the highest level since October 2008. According to Alec Gutierrez,lead analyst for vehicle evaluation at Kelley Blue Book, SUV sales have decreased about 1 percent since the last major gasoline price hike in spring 2008. He doesn't believe that SUV sales will decrease significantly unless prices reach $3.50 to $4 per gallon. if a gasoline price hike of 5 percent caused the SUV sales drop described, what is the cross-price elasticity of demand between gasoline and SUVs?
7) Suppose an economy is given by the following equations: C = 150 +0.25Yd I= 150 +0.25Y - 1000i G = 250 T = 200 Yd=Y-T (M/P) = 1400 Y L(i)=2Y - 8000i Yn (Natural level of output) = 1200 Using the above information, answer the following. Derive the IS and LM equations. (a) (b) Find equilibrium Y and equilibrium i. Is the economy in a recession or a boom? Suppose that real money supply (M/P) increases to 2800. Calculate the new equilibrium output (Y) and the new equilibrium interest rate (i). Did the economy arrive at the natural level of output? Explain why or why not? (d) If your answer to part "c" above is no, is there an alternative policy that can help the economy arrive at the natural level of output? Does the alternative policy have limits? Explain.
Assume that the long-run aggregate supply curve is vertical at Y = 3.000 while the short-run aggregate supply curve is horizontal at P=1.0, . The aggregate demand curve is Y = 2(M / P) and M = 1,500. Suppose the aggregate demand function shifts to Y = (1.5)(M / P) . What are the short- run values of P and Y? Show the change in short and long- run equilibrium graphically . Describe the short- run and long- run effects of the change in demand .
Assume that GBP|USD = 2.00 (rate chosen for math ease). After the passage of a significant tax increase in the United States, the United States stock market is expected to drop significantly over the next month while the British stock market is expected to show steady growth. As a result which of following is most likely in a graph of the currency market with GBP per USD (original equilibrium is USD|GPB = 0.50) on the vertical axis (quantity of USD on horizontal axis)? Drawing a diagram would be useful. A. The supply curve would shift left and the new price would be greater than 0.50. B. The supply curve would shift right and the new price would be greater than 0.50. C. The supply curve would shift left and the new price would be less than 0.50. D. The supply curve would shift right and the new price would be less than 0.50.
Market equilibrium and disequilibrium The following graph shows the monthly demand and supply curves in the market for keyboards. Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph. Note: Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly. 05010015020025030035040045050080726456484032241680PRICE (Dollars per keyboard)QUANTITY (Keyboards)Demand Supply Graph Input Tool Market for Keyboards Price (Dollars per keyboard) Quantity Demanded (Keyboards) Quantity Supplied (Keyboards) The equilibrium price in this market is per keyboard, and the equilibrium quantity is keyboards bought and sold per month. Complete the following table by indicating at each price whether there is a shortage or surplus in the market, the amount of that shortage or surplus, and…
Suppose the economy of Apple Republic is represented by the following equations: Z = C +|+ G C = 500 + .5YD T= 600 |= 300 YD = Y - T G = 2000 (Enter number only into the boxes) a. Given the above variables, calculate the equilibrium level of output (Y) disposable income (Yp) and consumption (C) Hint: First specify (using the above numbers) the demand equation (Z) for this economy. Second, using the equilibrium condition, equate this expression with Y. Once you have done this, solve for the equilibrium level of output (Y). Third, once you get Y, you can T from Y to get Yp. Finally, once you get Yp, you substitute it into the consumption equation to get consumption (C). b. Now, assume that government spending decreases from 2000 to 1900. What is the new equilibrium level of output (Y) ? What is the multiplier for this economy c. Now, assume that G is still at 2000, but taxes increase from 600 to 700. What is the new equilibrium level of output (Y) ? What is the multiplier for this…
== 2. Consider an IS/LM model of an economy with the following equations:C = 300+ 0.6Ydl 100 5iG 200TR = 200T 200T = 0.1YL = 0.4Y 30iM/P = 500(a) Using the above data, derive the equation for the IS schedule. (b) In this example, what is the equation for the LM schedule? (c) Using simultaneous equations calculate the equilibrium level of income and interestrates. Sketch the IS/LM equilibrium position. (d) What are the values of the monetary policy multipliers with respect to income andinterest rates? If the money supply is increased by 30, what are the new market clearing income and interest rate levels?
(1.4) Consider the following IS-LM model: I Y=C+I+G C=100+0.4(Y-T) I= 150 +0.2Y - 4,000r r = 0.01 with G = 200 and T = 100. (a) Derive the IS curve and draw it in an appropriate diagram. (b) Calculate the equilibrium values of Y, C, I and r. (c) What is the impact of decreasing government spending to G' = 180 in terms of the new equilibrium value Y"? (d) Suppose the central bank decides it wants to counteract the restrictive fiscal policy. What exactly (i.e. we look for graphical and numerical answers) can the central bank do in order to keep equilibrium output at the value obtained for Y in (b)?
2. Suppose an economy is given by the following equations: C = 150 +0.25Yd I= 150 +0.25Y - 1000i G = 250 T = 200 (M/P) = 1400 Y L(i)=2Y - 8000i Yn (Natural level of output) = 1200 Using the above information, answer the following. (a) (5) Derive the IS and LM equations. (b) (5) Find equilibrium Y and equilibrium i. Is the economy in a recession or a boom?
1-1 Consider the following model. AD : Y = 620 + 10 M/P AS :Y = Y' + (P – P^e ) where Y' = 750, P^e= 38, and M = 600 (a) Explain why an increase in the money supply (M) increases output. (b) Graph AD and AS curves. (c) Compute the equilibrium level of price. (d) Suppose that the money supply increases to 750. What is the short-run equilibrium level of output and the price level? (e) What is the long-run price level with M = 900? 1-2. Suppose that the government increases expenditures by $100×(1 + 0.02) billion while increasing taxes by $100x(1– 0.02) billion. Suppose that the MPC is 0.7 × (1 + 0.02) and that there is no crowding out effect. What is the combined effects of these changes? Why is the combined change not zero?
Assuming that each of the following functions are linear, give an economic interpretation of the slope of the function: F(q) is the revenue from producing q units of output b. G(x) is the cost of purchasing x units of some commodity H(p) is the amount of commodity demanded by households when its price is p d. C(Y) is the national consumption when national income is Y e. S(Y) is the total national savings when national income is Y a. С.
Suppose you are given the following information about an economy: Short run Aggregate Supply: SRAS = Y = 5000r+ 14,400 Long run Aggregate Supply: Aggregate Demand: Investment Spending: Consumption Spending: Government Spending: Net Exports (eX – iM): LRAS = Y* = 25,000 AD = Y=C+I+G+NX_ I = 4000 – 250r C = 1000 +0.75(Y – T) G = 2000 NX = 500 Taxes – Transfers: T = 2400 Monetary Policy: Money Demand: Money Market equilibrium: Fisher equation: where i is the nominal interest rate (i.e. when the interest rate is 7%, it means i= 7) r = 2 n м 3 20,000- 2000i M$ = MD i = r+T e. Find the short run equilibrium level of real GDP (Y), and inflation rate (t), in the short run. What is the output gap in the economy? Is it an expansionary or recessionary gap?

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