For a fixed proportion production function, at the vertex of any of the (L-shaped) isoquants the marginal productivity of either input is
a. constant
b. zero.
c. negative.
d. a value that cannot be determined.
Question 2
Suppose the production function for good q is given by q = 3K + 2 L where K and L are capital and labor inputs. Consider three statements about this function: I. The function exhibits constant returns to scale. II. The function exhibits diminishing marginal productivities to all inputs. III. The function has a constant rate of technical substitution. Which of these statements is true?
a. All of them.
b. None of them.
c. I and II but not III.
d. I and III but not II.
e. only I.
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A fixed action pattern as an example of innate behaviour.
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