Avi (A) and Brad (B) live in an exchange economy where they consume cakes, z, and litres of beer, y. Both of their preferences are given by: u=aln(x) + (1-a) In(y) where 0< a < 1. There are a total of n cakes and 3n litres of beer in the economy, where 3 > 0. a. Assuming Py = 1 and letting pe=p, show that there will be a constant equilibrium price, p* (a, 3), regardless of the initial distribution of a and y between Avi and Brad. What is this price? b. Consider a beer-heavy economy in which n = 10, a = 0.2 and 3= 8. Suppose Avi starts with all the beer, and Brad starts with all the cake. What will be the post-trade equilibrium? Who trades how much for what? Show the situation on an Edgeworth-box diagram with post-trade indifference curves. (Your diagram. does not have to be 'to scale'.)

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Avi (A) and Brad (B) live in an exchange economy where they consume
cakes, r, and litres of beer, y. Both of their preferences are given by:
u = a ln(x) + (1 – a) In(z)
where 0 < a < 1. There are a total of n cakes and Bn litres of beer in the economy,
where 3 > 0.
a. Assuming Py =1 and letting p = p, show that there will be a constant equilibrium
price, p"(a, 3), regardless of the initial distribution of r and y between Avi and
Brad. What is this price?
b. Consider a beer-heavy economy in which n 10, a = 0.2 and B = 8. Suppose
Avi starts with all the beer, and Brad starts with all the cake. What will be the
post-trade equilibrium? Who trades how much for what? Show the situation on
an Edgeworth-box diagram with post-trade indifference curves. (Your diagram
does not have to be 'to scale'.)
Transcribed Image Text:Avi (A) and Brad (B) live in an exchange economy where they consume cakes, r, and litres of beer, y. Both of their preferences are given by: u = a ln(x) + (1 – a) In(z) where 0 < a < 1. There are a total of n cakes and Bn litres of beer in the economy, where 3 > 0. a. Assuming Py =1 and letting p = p, show that there will be a constant equilibrium price, p"(a, 3), regardless of the initial distribution of r and y between Avi and Brad. What is this price? b. Consider a beer-heavy economy in which n 10, a = 0.2 and B = 8. Suppose Avi starts with all the beer, and Brad starts with all the cake. What will be the post-trade equilibrium? Who trades how much for what? Show the situation on an Edgeworth-box diagram with post-trade indifference curves. (Your diagram does not have to be 'to scale'.)
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