Question

1. Consider the figure below illustrating an isoquant and isocost line for the ABC Fruit Companys production of guavas: x 6
b. [5 pts) Suppose that the marginal product of labor (MPL) = 6 and the marginal product of capital (MPK) = 3 at point A in t
c. [5 pts] Now suppose were told that ABC Fruits production function takes the form Q-LK. What is the marginal rate of tech
d. [6 pts] Using the same production function in (c), suppose we learn that input prices have changed. We learn only that the
e. [6 pts) Suppose the production function remains the same, but now w falls so that it equals r. That is, war. What K and L
Choice of L: What is the firms cost function at any quantity Q? Does this function exhibit economies or diseconomies of scal
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line . and ka 6 a The iso quant is tangent to the Iso cost at point A tie at optimal bundle (3,6) Where c = 3 ond K-6 and k=6да Pu bike •1. . I b2 suppose that the marginal procact of labor MPL=6: marginal product of capital mPk 3 at point e. At poin- a Now suppose we learn only that . the wage is nine times as lange as r. ie w=ar, we know 8=1, hence W=(9x1) = 9 Now, optime suppose w falls so that it eques mi je way. We know re 1 hence w= 1 Now optimal input min condition will be MPL = 8 MPK MPK. AS LEK , hence L. Q 12 Now, choice of Ki Q/ Choice of i= Q/ Now hims cost for it on! es WL+MK substituting . W =r=1 and L=

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