f a household’s income falls from R20 000 to R17 000 and its consumption falls from R18 000 to R15 000, then its: a) marginal propensity to consume is –0,67. b) marginal propensity to consume is 0,88. c) marginal propensity to consume is 0,20. d) marginal propensity to save is zero. e) marginal propensity to save is 0,12.

3. Analytic Question on Durable Consumption It is known that durable consumption is more sensitive to interest rates and expected income. In this question, we investigate if this is the case in the context of the model we have been studying. We investigate the following decision: U (c1, c2) 1 max {c1,c2} 2 VCi + xo + subject to the following budget constraints: The time 1 budget constraint: a = Y1 - Ci and the time 2 budget constraint: C2 = Y2 + (1 +r) a. The novelty is that ro is now a variable to represents past purchases of goods 1. You can think of this as a car. In turn, we have that x1 = c1 so a1 is consumption derived utility in period 2 derived from past purchases. For this question assume that B (1+ r) = 1. Answer the following questions. а. Substitute out a from both budget constraints, the one at time 1 and time 2, to write a single intertemporal budget constraint. b. Show that the Euler equation (the equation that relates the marginal utility of consumption to the interest…

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O Saving Propensity to Save Curve Dis-saving { Saving O a. Is negative. O b. Is zero. O c. None of the answers is correct. O d. Is positive. 4 Income According to the above diagram: when consumption is a positive amount, saving S

Exercise 4. You are a manager at a certain factory that designs small gadgets. The factory has been quite successful in the past years. Your CEO is wondering whether or not it is a good idea to expand the factory this year. The cost to expand the factory is $1.5M. Doing nothing will result in expected $3M in revenue if the economy stays good and people continue to buy plenty of gadgets, but only $1M in revenue is expected if the economy is bad. On the other hand, expanding the factory carries an expected $6M in revenue if economy is good and $2M if the economy is bad. Assume there is a 40% chance of a good economy and a 60% chance of a bad economy. Also, assume the costs of operating the factory account to $.5M if the factory is expanded and $.3M if not. a. Illustrate a Decision Tree showing these choices. b. What should you do?

Answer it correctly and explain well.Typed answer only. Do it fast. Minimum two steps with explanation.

1) In the IS equation why wasnt G in the calculations.   2)Suppose that with all exogenous variables, including T and M at their original values, households become less confident about the future and reduce their autonomous level of consumption from 200 to 150. Solve for the new values of e, Y and NX. With the help of graphs, explain very carefully the mechanisms by which a new equilibrium is reached.  3)Suppose that with all exogenous variables at their original values, the autonomous part of money demand increases to 70. Solve for the new values of e, Y and NX. With the help of graphs, explain very carefully the mechanisms by which a new equilibrium is reached.

Let's incorporate the labor-leisure trade-off and capital income taxes in the two-period model. Let c₁, c₂ be consumption in two periods, I the number of hours worked, Te Te the proportional taxes on consumption in 2 periods, s the saving rate, w the wage rate, b pension in the 2nd period, and 7, the tax on savings (capital income tax). The household's maximization problem in this case is: given by maxe₁,e2,8,1-1 log(c₁) + log (1-1)+5log (c₂) such that (1+T₂) C₁+8 = (1-7)wl and (1+T₂)C₂ = [1+r(1-Ts)]s+b, where measures how the household values leisure vis-a-vis consumption.

Suppose that there are T periods to maximize over. Show that the intertemporal budget constraint is Ct+2 Yt+2 Yt+1 (1+r) (1+r)² (1 + r)² Ct + Ct+1 (1 + r) + 2+...+ Ct+T+1 (1+r)² \ T = Yt + + +...+ Yt+T+1 (1+r)

Figure 7.1 C b. 100 In Figure 7.1, all of the following is true except: An additional dollar of income always induces some additional consumption. O There is some level of consumption that is independent of income. O The marginal inclination to consume is greater than zero. O At zero income there is zero consumption.