In: Economics
Consider a pure-exchange economy, with two consumers and two commodities. Initial endowments are given by w1 = (4, 2) and w2 = (2, 3). Individual utility functions are u1(x11, x21) = x11 · x21 and u2(x12, x22) = x12 + x22. Find the competitive equilibrium.
At CE, MRS1= MRS2= P1/P2
As MRS2= 1, so P1/P2= 1
P1= P2= 1
so, as from demand function of individual 1
X11= M1/2*P1, X21= M1/2*P2
Endowment income of 1 at Equilibrium = 4P1 + 2P2
= 6
so at CE, x11= X21= 6/2= 3
Now from total Endowments x11+x12= 4+2= 6
So, x12= 6-3= 3
similarly , x22= (2+3)-3= 2