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Question 3 6 pts Imagine the consumers utility function is: U = Vevo and that the consumer must pay a proportional profit ta
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a).

Consider the given problem here the utility function of the consumer is, => U = L^0.5*C^0.5. Now, here the consumer get wage “W” for each unit of labor supplied, => the profit of the consumer is “W*N = P”. So, the budget constraint of the consumer is given by.

=> C = (1-t)*P, where “P=W*N=W*(T-L)”, where “N=labor supply”, “L=leisure” and “T=time available”.

=> C = (1-t)*W*(T-L) = W(1-t)*(T-L) = W(1-t)*T - W(1-t)*L.

=> C + W(1-t)*L = W(1-t)*T, be the budget line.

So, the lagrang function is given by.

=> V = L^0.5*C^0.5 + c*[W(1-t)*T – W(1-t)*L - C], where “c=lagrang multiplier”.

So, the FOC for utility maximization require “dV/dC = dV/dL = 0”.

=> dV/dC = 0.5*L^0.5*C^(-0.5) + c*(- 1) = 0, => 0.5*L^0.5*C^(-0.5) = c, ……………(1).

=> dV/dL = 0, => 0.5*L^(-0.5)*C^0.5 + c*[–W(1-t)] = 0.

=> 0.5*L^(-0.5)*C^0.5 = c*W(1-t), ……………………..(2).

So, these are the required two equations for consumer maximization.

b).

Here by (1) divided by (2) we have the following conditions.

=> L^0.5*C^(-0.5) / L^(-0.5)*C^0.5 = 1/ W(1-t).

=> L/C = 1/W(1-t), => C = W(1-t)*L,……………………..(3).

The budget line is given by, => C +W(1-t)*L = W(1-t)*T, => W(1-t)*L +W(1-t)*L = W(1-t)*T.

=> 2W*(1-t)*L = W(1-t)*T, => L = T/2, => N = T-L=T-T/2 = T/2, => N=T/2.

So, the level of consumption demanded is “C = W(1-t)*N = W(1-t)*T/2, => C = W(1-t)*T/2.

c).

Here the consumption function is directly related to wage rate, => as the wage increases the level of consumption increases. Here as the wage increases the “SE=substitution Effect” induce the consumer to reduce leisure and increase the working hours that also increase the consumption. On the other hand the “IE=income effect” induce the consumer to increase leisure and reduce working that reduce consumption. Now, the SE is stronger than the IE on consumption, => consumption increases as wage increases.

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