Production in the cities of Westeros is a function of the number
of people in each city. If we denote the number of people in a city
as N, the amount of private good that could be producted in that
city will be N1/2/N and the amount of the public good
that could be producted in the city will be N1/2.
Citizens of Westeros all have a utility function of the form
U=(pri)1/2(pub)1/2, where pri is the amount
of the private good in the city and pub is the amount of public
goods in the city. Find an equation for citizens utility as a
function of the number of citizens in the city.
Consider the given problem here “N” be the number of people and numbers of private good produced is given by, “N^1/2/N = N^(-1/2)”. Similarly, numbers of public good produced is given by, “N^1/2”. Now, the utility function is a function of "numbers of private goods produce" and the "numbers of public good produced", is given below.
=> U = (Private)^1/2*(Public)^1/2 = (N^-1/2)^1/2*(N^1/2)^1/2 = N^-1/4*N^1/4 = N^0 = 1.
So, the required utility function is given by, “U(N) = 1”. So, the utility function is constant for values of “N”.
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