Figure 10.3 P AS2 AS: P2 P1 AD: Y2 Which of the following is not true in Figure 10.3: O The economy is going through a stagflationary period O The cost of crude oil has increased Output is stagnating, while inflation is increasing O Offshore wind farms are delivering cheap energy
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- The short run aggregate supply curve was constructed assuming that as the price of outputs increases, the puce of inputs stays the same. How would an increase in the prices of important inputs, like energy, affect aggregate supply?1Why low rate inflation is considered necessary for economic grwoth? Oa It does not affect the purchasing power of wages Ob. It indicates that the currency is in continuous demand by the people Oc taffects only the rich and not the poor Od itact as an incentive to boost in supply in the economy 2When the economy is in Keynesian macroeconomic equilibrium, planned investment is greater than actual investment. O a False O b. True 3Government fixes the floor and ceiling price which will not allow the producers to increase the price on their wish, this is a type of. O a Physical control called price pegging O b. Monetary policy control measures O. Physical control called price tagging Od. Fiscal policy control measures O e None 4Rising output coupled with falling prices is called stagflation O a. False O b. True 5The Value of marginal propensity to consume lies O a. O to 1 O b. Less than zero Oc -1 to 1 Od. Between O to 1 6The Central Bank way to control inflation is Oa Monetary policy…Imagine there is a consumption smoother (also known as a PIH consumer) who expectsto live for another 40 years and to work for another 30 years. They just learned thatthey will receive a permanent pay increase from their job of $800. How much extra dothey consume this year? What is their marginal propensity to consume?
- Consider the following macroeconomy. All amounts are in millions (m.) of $: C = 750 + 0.8 YD I = 1200 G = 150 T = 250 Calculate eqm Y and prove that I=sum of S at this equilibrium. What is meant by the “Paradox of Thrift” (POT)? Go back to the original eqm of part a. Now prove using multiplier analysis that the POT holds in this economy by assuming that the change in co is -$50 m. As part of your answer, explain “intuitively” why this paradox exists. Show what happens in the Z-Y space graph.Suppose that in Macroland the consumption and the investment have a negative relationship withthe real interest rate and positive relationship with Y. The Central Bank of the country targets acertain nominal interest rate and lets the money supply adjust in order to reach that interest rate.a. Draw a graph of the IS-LM model in this situation.b. Suppose that the Central Bank announces an increase of the interest rate in the future.Represent graphically the initial position of IS-LM curves. Then, show the IS-LM curves of thefuture, after the announced increase in the interest rate is implemented. (Assume that the ISis constant.).c. Suppose that agents today take into consideration the resulting income of the future whendeciding the amount of consumption and investment. Show what happens to the IS-LMcurves today after the announcement of the CB (tip: the CB is NOT increasing the nominalinterest rate today).d. The government decides to step in and avoid any deviation of Y from the initial…Assume that the marginal propensity to consume is 0.75 and that taxes are exogenous. Imagine that government expenditure increases by $10m. Begin by assuming that the interest rate and prices stay fixed. 1. What is the value of the aggregate expenditure multiplier (k)? 2. How would the change be represented in an AD-AS diagram? 3. How would the change differ if the interest rate could change (assuming prices remain fixed)? 4. How would the change differ if the price level could also change?
- Focus on the concept of marginal propensity to consume and reflect on which of the following would be implied by a highmarginal propensity to consume.O A small change in consumption when income changesO A high saving rateO A high marginal tax rateO An equilibrium level of income near full employmentO A low marginal propensity to saveConsider a keynesian macromodel Y=(C0+G+I) / (1-c) where C0 is autonomus consumption, G is government consumption expenditure, I is investment expenditure, c is the marginal propensity to consume. In this model, if lthere is an increse in both labor productivity and the marginal propensity to consume while autonomus expenditures remain unchanged, what will happen to the level of employment? a. can't say for sure b. decreses c. stays the same d. increasesQuestion 1) a) In panel (a) the curve shifts upward, what could cause this? O Increase in G (govermment spending)O Decrease in HH wealth due to a decrease in housing pricesO An increase in the overall price levelo Areduction in govemment spending (G) b) Using Figure 2, if this economy is currently at Y1 and consumer wealth increases, then___O AD1 will shift to the left, reflecting a decrease in the real GDP at every price level.O AD1 willshift to the right. reflecting an increase in the real GDP at every price level.O an upward movement along the AD1 wiltake place., reflecting an increase in the price level.O a downward movement along the AD1 will take place, reflecting a decrease in the price level.
- Define the terms recessionary gap and the inflationary gap. Why do they occur? Please frame your answer within the context of the COVID-19 impact in the economy.Suppose an economy's macro equilibrium is such that a shift in either AD or AS (or both) to the right is desired. From this we can conclude that the economy may be experiencing O wartime production O economic growth O excess demand O unemploymentConsider the economy of XYZ, has the following indicators in the table below:Ct = 0.7Yt̅Gt = 0.2Yt̅EXt = 0.20Yt̅IMt = 0.25Yt̅It = 0.30 − 2.0(Rt − 1.2)Yt̅A. Derive the IS equation. Explain why the IS curve has downward slope.B. Estimate the short-run output when real interest rate equals to 2 percent.C. Calculate the value of multiplier and interpret the result.D. Suppose the government increases the expenditure such as:Gt = 0.3Yt̅Show the impact on IS curve in graphically, and calculate the government expenditure multiplier.How much short-run output change? Explain the reason.