Given f(x,y) = 2x2 - 5xy + 5y2,   and Px= 7, Py= 6 and income, I = 169.   Construct the budget contraint and Lagrange function and solve for the equilibrium values of x and y.   (a) What is the equilibrium value of x? (Give your answer to two decimal places, if required)   (b) What is the equilibrium value of y? (Give your answer to two decimal places, if required)   (c) What is the value of the determinant of the bordered Hessian matrix? (Give your answer to two decimal places, if required)

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter6: Demand Relationships Among Goods
Section: Chapter Questions
Problem 6.9P
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Given f(x,y) = 2x2 - 5xy + 5y2,

 

and Px= 7, Py= 6 and income, I = 169.

 

Construct the budget contraint and Lagrange function and solve for the equilibrium values of x and y.

 

(a) What is the equilibrium value of x? (Give your answer to two decimal places, if required)

 

(b) What is the equilibrium value of y? (Give your answer to two decimal places, if required)

 

(c) What is the value of the determinant of the bordered Hessian matrix? (Give your answer to two decimal places, if required)

 

(d) Based on the value of the Bordered Hessian, comment whether the obejective function is maximised or minimised.

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