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Managerial Economics and Strategy Chapter 6 Q7.3 ​A Korean electronic chip manufacturer has a production function...

Managerial Economics and Strategy Chapter 6 Q7.3
​A Korean electronic chip manufacturer has a production function given by ​q = L0.5K0.5.
​​a). Assume the wage rate is $45 and the cost of capital is $60. Use Excel to determine the amount of capital, K, needed to produce 20 units of output for each value of labor, L. starting from L=2 and going to 40 in increments of 1. Plot this isoquant. (Hint: The formula for that isoquant is 10 = L0.5K​0.5​. Squaring both sides of the quation, we obtain 100 = LK. Dividing both sides of the equation by L, we learn that K = 100/L.)
​b). Which combination of inputs minimizes the cost of producing 20 units of output? Hint L still starts from 2 to 40 in increments. Here you are just to write down the combination of L and K, but you should support your answer.

Solutions

Expert Solution

Solution:

Labor (L) Capital (K) Wage ($) Capital cost ($) Sqrt of Labor Output Sqrt of Capital Capital for 20 output Cost of labor Cost of Capital Total cost for 20 output
2 50 90 3000 1.4 20 14.1 200.0 180 600000.0 600180.0
3 33 135 2000 1.7 20 11.5 133.3 405 266666.7 267071.7
4 25 180 1500 2.0 20 10.0 100.0 720 150000.0 150720.0
5 20 225 1200 2.2 20 8.9 80.0 1125 96000.0 97125.0
6 17 270 1000 2.4 20 8.2 66.7 1620 66666.7 68286.7
7 14 315 857 2.6 20 7.6 57.1 2205 48979.6 51184.6
8 13 360 750 2.8 20 7.1 50.0 2880 37500.0 40380.0
9 11 405 667 3.0 20 6.7 44.4 3645 29629.6 33274.6
10 10 450 600 3.2 20 6.3 40.0 4500 24000.0 28500.0
11 9 495 545 3.3 20 6.0 36.4 5445 19834.7 25279.7
12 8 540 500 3.5 20 5.8 33.3 6480 16666.7 23146.7
13 8 585 462 3.6 20 5.5 30.8 7605 14201.2 21806.2
14 7 630 429 3.7 20 5.3 28.6 8820 12244.9 21064.9
15 7 675 400 3.9 20 5.2 26.7 10125 10666.7 20791.7
16 6 720 375 4.0 20 5.0 25.0 11520 9375.0 20895.0
17 6 765 353 4.1 20 4.9 23.5 13005 8304.5 21309.5
18 6 810 333 4.2 20 4.7 22.2 14580 7407.4 21987.4
19 5 855 316 4.4 20 4.6 21.1 16245 6648.2 22893.2
20 5 900 300 4.5 20 4.5 20.0 18000 6000.0 24000.0
21 5 945 286 4.6 20 4.4 19.0 19845 5442.2 25287.2
22 5 990 273 4.7 20 4.3 18.2 21780 4958.7 26738.7
23 4 1035 261 4.8 20 4.2 17.4 23805 4536.9 28341.9
24 4 1080 250 4.9 20 4.1 16.7 25920 4166.7 30086.7
25 4 1125 240 5.0 20 4.0 16.0 28125 3840.0 31965.0
26 4 1170 231 5.1 20 3.9 15.4 30420 3550.3 33970.3
27 4 1215 222 5.2 20 3.8 14.8 32805 3292.2 36097.2
28 4 1260 214 5.3 20 3.8 14.3 35280 3061.2 38341.2
29 3 1305 207 5.4 20 3.7 13.8 37845 2853.7 40698.7
30 3 1350 200 5.5 20 3.7 13.3 40500 2666.7 43166.7
31 3 1395 194 5.6 20 3.6 12.9 43245 2497.4 45742.4
32 3 1440 188 5.7 20 3.5 12.5 46080 2343.8 48423.8
33 3 1485 182 5.7 20 3.5 12.1 49005 2203.9 51208.9
34 3 1530 176 5.8 20 3.4 11.8 52020 2076.1 54096.1
35 3 1575 171 5.9 20 3.4 11.4 55125 1959.2 57084.2
36 3 1620 167 6.0 20 3.3 11.1 58320 1851.9 60171.9
37 3 1665 162 6.1 20 3.3 10.8 61605 1753.1 63358.1
38 3 1710 158 6.2 20 3.2 10.5 64980 1662.0 66642.0
39 3 1755 154 6.2 20 3.2 10.3 68445 1577.9 70022.9
40 3 1800 150 6.3 20 3.2 10.0 72000 1500.0 73500.0

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