Question

In: Economics

Show all work please. 3. Suppose the production function (technology) is given as q = min...

Show all work please.

3. Suppose the production function (technology) is given as q = min {2x1,6x2}, where both inputs x1 and x2 are able to vary.

  1. What kind of technology is this function?

  2. What is the corresponding cost function as a function of w1, w2, and q?

  3. Solve for this cost if w1 = 24, w2 = 18, and q = 2.

Solutions

Expert Solution

Answer 3

(a)

A function exhibit constant returns to scale if f(tx1,tx2) = t*f(x1,x2) for all t > 1.

Here, q = f(x1,x2) = min {2x1,6x2} => f(tx1,tx2) = min {2tx1,6tx2} = t*min {2x1,6x2} = t*f(x1,x2). Hence this function exhibit constant returns to scale.

This producer consider x1 and x2 as perfect complements. Thus this production function is a fixed proportion function and exhibit constant returns to scale.

(b)

Production function is given by :

q = f(x1,x2) = min {2x1,6x2} ----------------------------------(1)

In order to minimize cost for a perfect complement of Leontief production a producer produces at a point where kink of an isoquant will occur.

Kink will occur for this function when 2x1 = 6x2

Putting this in (1) we get :

q = min {2x1,6x2} = min {2x1,2x1} = 2x1

=> x1 = q/2 and hence x2 = q/6

Cost function (C) = w1x1 + w2x2 = (q/2)w1 + (q/6)w2

Hence,Cost function (C) = (q/2)w1 + (q/6)w2

(c)

Now  w1 = 24, w2 = 18, and q = 2.

=> Cost function (C) = (2/2)*24 + (2/6)*18 = 30

Hence,  if w1 = 24, w2 = 18, and q = 2. then Cost = 30.


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