3.4 Now, using the Jacobian derivative matrix and matrix algebra, calculate the vector the firm decides to increase K by 5 units and decrease L by 0.2 units. dq₁ dq2 if 3.5 Construct the Hessian matrix for equation (3). Using the information contained in the Hessian matrix, does the firm have increasing or diminishing marginal productivity for good 1 (91)? You need not evaluate the Hessian matrix at a specific point.

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Chapter1: Making Economics Decisions
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Just 3.4 and 3.5 please
Question 3
Consider the following system of production functions for firm i which produces two outputs,
namely good 1 and good 2:
91(K, L) = 5K1/8 L7/8
(3)
= 4(-K/2 + L!/2)2
(4)
where q1 is the quantity produced of good 1, q2 is the quantity produced of good 2, K is capital
and L is labour.
3.1 Calculate an equation for the marginal rate of technical substitution (MRTS) for the
production of good 1 (91) in order to illustrate how much more labour L the firm would
require to compensate for losing 1 unit of capital K while remaining on the same isoquant.
You need not evaluate the MRTS at a specific point.
3.2 If the firm is currently producing where K = 2 and L = 2 and would like to increase
production of good 1 (q1) as rapidly as possible, in what ratio should it increase its current
levels of inputs of K and L in order to reach a higher isoquant? Present your answer as a
unit vector (i.e. a vector of length 1).
3.3 Suppose again that the firm is producing where K = 2 and L = 2. Set up the Jacobian
derivative matrix to approximate the rate of change in Q(q1, 42) for changes in K and L
at this point on the production function.
dqi
3.4 Now, using the Jacobian derivative matrix and matrix algebra, calculate the vector
if
dq2
the firm decides to increase K by 5 units and decrease L by 0.2 units.
3.5 Construct the Hessian matrix for equation (3). Using the information contained in the
Hessian matrix, does the firm have increasing or diminishing marginal productivity for
good 1 (g1)? You need not evaluate the Hessian matrix at a specific point.
Transcribed Image Text:Question 3 Consider the following system of production functions for firm i which produces two outputs, namely good 1 and good 2: 91(K, L) = 5K1/8 L7/8 (3) = 4(-K/2 + L!/2)2 (4) where q1 is the quantity produced of good 1, q2 is the quantity produced of good 2, K is capital and L is labour. 3.1 Calculate an equation for the marginal rate of technical substitution (MRTS) for the production of good 1 (91) in order to illustrate how much more labour L the firm would require to compensate for losing 1 unit of capital K while remaining on the same isoquant. You need not evaluate the MRTS at a specific point. 3.2 If the firm is currently producing where K = 2 and L = 2 and would like to increase production of good 1 (q1) as rapidly as possible, in what ratio should it increase its current levels of inputs of K and L in order to reach a higher isoquant? Present your answer as a unit vector (i.e. a vector of length 1). 3.3 Suppose again that the firm is producing where K = 2 and L = 2. Set up the Jacobian derivative matrix to approximate the rate of change in Q(q1, 42) for changes in K and L at this point on the production function. dqi 3.4 Now, using the Jacobian derivative matrix and matrix algebra, calculate the vector if dq2 the firm decides to increase K by 5 units and decrease L by 0.2 units. 3.5 Construct the Hessian matrix for equation (3). Using the information contained in the Hessian matrix, does the firm have increasing or diminishing marginal productivity for good 1 (g1)? You need not evaluate the Hessian matrix at a specific point.
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