Consider a consumer who can borrow or lend freely at an interest rate of 100% per period of time (think of the period as being, say, 30 years, a bit like with a mortgage). So r= 1.0, or 100%. The consumer's two-period utility function is: U=In(ct) + (1/2)In(Ct+1) The consumer earn Y=100 each period, so Y₁-100 and Yt+1 also equals 100. If this consumer is behaving optimally, trying to maximize her lifetime utility subject to the IBC, what's her consumption in period t?
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- Assume a consumer has current-period income y = 200, future-period income y′ = 150, current and future taxes t = 40 and t′ = 50, respectively, and faces a market real interest rate of r = 0.05, or 5% per period. The consumer would like to consume according to the following utility function: U (c, c′ ) = ln(c) + ln(c′ ). Show mathematically the lifetime budget constraint for this consumer. Find the optimal consumption in the current and future periods and optimal saving. Suppose that instead of r = 0.05 the interest rate is r = 0.1. Repeat parts (a) and (b). Does the substitution effect or the income effect dominate?Suppose a household has the following lifetime utility function: U=c1/2 + ẞc¹/2 12tt+1 A) Find expressions for the partial derivatives of lifetime utility, U, with respect to period t and period t + 1 consumption. Is marginal utility of consumption in both periods always positive? B) Find expressions for the second derivatives of lifetime utility with respect to period t and t+1 consumption, i.e., 2U and a 20_Are these second derivatives always negative for ac²²+1 any positive values of period t and t+1 consumption? C) Derive an expression for the indifference curve associated with lifetime utility level Uo (i.e., derive an expression for C++₁ as a function of U₁ and c). What is the slope of the indifference curve? How does the magnitude of the slope vary with the value of c?Suppose interest rate is 10 % and consumer's utility function is given by U(C1,C2)=C1C2. Income in the first period is 100 and income in the second period is 121. a) Find optimal consumption is each period. b) Does the consumer borrow? In which period? How much? c) Show the answers on a diagram.
- Mavis earns income in two periods, M, and M2 and buys consumption goods in twd periods as well, C, and C2 (the numbers indicate the period in which the income is earned and the consumption goods are purchased). Her utility function is as follows: U=U(C, ) +: U(C,) where & is the time rate of preference and 1+8 U(C,)=U(C,) when C, = C, and U(C) is well behaved. Mavis can borrow money from or save money at a local bank. The interested rate (whether saving or borrowing) is r. а. Write out Mavis' utility maximizing Lagrangian equation. No need to solve it. b. Describe the process for conducting the comparative statics necessary to determine the sign of the following change: Or С. What is the significance of 6? Assuming you would graph her consumer choice model with C on the horizontal axis, explain why a higher value for & would make her indifference curves steeper or flatter. d. Draw the consumer choice graph for this situation such that M1 = $10,000, M2 = $20,000 and both 8 =0.25 andr =…Consumer's utility function for consumption in two periods is c1+30ln(c2). The interest rate is r, the income in the first period is 10, the income in the second period is 50. What is the formula for the demand for second-period consumption?Jerry's utility function is U(x,y) = ( 5x + y ) 18. Find Jerry's MRS (for good X in terms of good Y) and then find the value of the derivative dMRS/dx at the point were x=39 and y=69 and enter it below. Remember to enter the number in decimal form. If the number is negative, then use the negative sign (e.g., -3.29839).
- Assume that someone has inherited 2,000 bottles of wine from a rich uncle. He or she intends to drink these bottles over the next 40 years. Suppose that this person’s utility function for wine is given by u(c(t)) = (c(t))0.5, where c(t) is each instant t consumption of bottles. Assume also this person discounts future consumption at the rate δ = 0.05. Hence this person’s goal is to maximize 0ʃ40 e–0.05tu(c(t))dt = 0ʃ40 e–0.05t(c(t))0.5dt. Let x(t) represent the number of bottle of wine remaining at time t, constrained by x(0) = 2,000, x(40) = 0 and dx(t)/dt = – c(t): the stock of remaining bottles at each instant t is decreased by the consumption of bottles at instant t. The current value Hamiltonian expression yields: H = e–0.05t(c(t))0.5 + λ(– c(t)) + x(t)(dλ/dt). This person’s wine consumption decreases at a continuous rate of ??? percent per year. The number of bottles being consumed in the 30th year is approximately ???Suppose a consumer lives in two periods , with his income in period 1 as $100 and his income in period 2 as $150. If the rate of interest in the economy is 12%. Find the equilibrium level of consumption in both the periods(C1*,C2*) if his utility function is given as: U = C10.5C20.5. (125 ,125) (138.17, 110.54) (90.54 , 180.84) (110.54 , 138.17)A consumer who starts at point B will want to borrow, but as little as possible in order to minimise the cost of interest. is it true or false
- Eren’s two main hobbies are taking vacations overseas (V) and eating expensive meals (M). His utility function is given as: U(V,M) = V^2MLast year, the average price of taking a vacation overseas was US$200 and the average price of an expensive meal is $50. However, due to supply problems in Onions, the average price of an expensive meal rose to $75. The average price of a vacation did not change. His income, which is $1500, did not change. Suppose that the Department of Welfare wants to know how much should be given to Eren to offset his change un utility due to the price increase of an expensive meal. Calculate the compensative variation (CV).A consumer can borrow or lend freely at the market interest rate of r=100% per period. [If it's helpful, think of the "period" as being a few decades.] Her utility function is: U = In(ct) + (1/2)In(ct+1) She earns Yt=100 and Yt+1=100. But in period t+1 she will have to pay a tax of Tt+1=40. If she's maximizing her utility function subject to the IBC, how much will she consume in period t?Define time preferences for consumption