Question

In: Economics

Section 1: Using marginal analysis to determine the profit maximizing price and quantity of resources in...

Section 1: Using marginal analysis to determine the profit maximizing price and quantity of resources in a factor market under perfect

Orange Inc. sells cell phones in a perfectly competitive market in the short-run. Capital and labor are two resource factors used to produce the cell phones. Capital is fixed in the short-run but labor can vary. The market for hiring labor is a perfectly competitive market.

Labor is measured in worker weeks. Each worker week costs $700 of wages and Orange Inc. can hire any number of worker weeks. Each cell phone is sold at a price of $300 and can sell any number of phones that are produced. Information is given below on various amounts of labor and output.

Table 1:

Quantity of Labor (in worker weeks)

Output of Phones (per week)

0

0

1

7

2

13

3

18

4

22

5

25

6

27

Step 1

Using the information preceding Table 1 and the table, create a separate table that includes the following for each quantity of labor value: marginal product of labor, total revenue, marginal revenue, marginal revenue product of labor, total variable cost, marginal cost, total resource cost, and marginal resource cost.

The table can be computer-generated or created by hand. Be sure to appropriately label the table so the various calculated values can be identified. Round off to two decimal places for the dollar values.

Step 2

Using the table you created in Step 1, create a graph that illustrates the profit maximizing level of output price and output quantity for the company using marginal analysis.

The graph can be computer-generated or created by hand. Indicate the profit maximizing output quantity and output price in this graph.

Step 3

Using the table you created in Step 2, create a graph that illustrates the profit maximizing level of input price and input quantity for the company using marginal analysis.

The graph can be computer-generated or created by hand. Indicate the profit maximizing input quantity and input price in this graph.

Step 4

In a short paragraph (100 to 200 words), indicate the profit for Orange Inc. (assuming the company maximizes profit) using the information you calculated in the table for Step 1. In addition, explain how the optimal input and optimal output decisions for Orange Inc. are equivalent

Solutions

Expert Solution

a) we have calculated MR = change in TR/change in q = price because MR is the addition to revenue due to an additional unit sold (which is price here). MC = change in TC/change in q because MC is change in Tc with an additional unit of output produced.

P(price) 300
W(wages) 700
Quantity of Labor (in worker weeks) Output of Phones (per week) Marginal product TR = p*q MR = change in TR/change in q MRP = MR*MP TVC = L*wage MC = change in TC/change in q MRC = wage = change in Tc/change in labor MRP/MRC
0 0 0 0 0
1 7 7 2100 300 2100 700 100 700 3
2 13 6 3900 300 1800 1400 116.67 700 2.6
3 18 5 5400 300 1500 2100 140 700 2.1
4 22 4 6600 300 1200 2800 175 700 1.7
5 25 3 7500 300 900 3500 233.33 700 1.3
6 27 2 8100 300 600 4200 350 700 0.9

b)

profit maximising level of output would be where MR = MC which lies at a q level between 25 and 27.

c)

profit maximising level of input will be where MRP of additional labor week ie equal to MRC of additional labor week. which is between and 6 labor weeks.

D) both decisions in part b and c point to employing labor weeks in (5,6) range that will produce output in (25,27) range. this is because profit maximisation from deciding q level is same as cost minimisation decision with respect to L.


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