The long run. A chair manufacturer hires its assembly-line labour for $18 an hour and calculates that the rental cost of its machinery is $6 per hour. Suppose that a chair can be produced using 4 hours of labour or machinery in any combination. The firm is currently using 1 hour of labour for every 3 hours of machine time. (Assume that labour is on the horizontal axis and capital is on the vertical axis). 1. Therefore, the firm       [is, is not]   currently minimizing its costs of production because: a) the ratio of MPL to the MPK is equal to the ratio of the wage to the rental cost.       [true,false]  b) the ratio of MPL to the MPK is greater than the ratio of the wage to the rental cost.       ["", ""]  c) MRTSLK is less than the ratio of the wage to the rental cost.       ["", ""]  d) the MPL divided by the wage is less than the MPK divided by the rental cost.       ["", ""]  e) MRTSLK equals the ratio of input prices.       ["", ""]

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter10: Cost Functions
Section: Chapter Questions
Problem 10.4P
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The long run.

A chair manufacturer hires its assembly-line labour for $18 an hour and calculates that the rental cost of its machinery is $6 per hour. Suppose that a chair can be produced using 4 hours of labour or machinery in any combination. The firm is currently using 1 hour of labour for every 3 hours of machine time. (Assume that labour is on the horizontal axis and capital is on the vertical axis).

1. Therefore, the firm       [is, is not]   currently minimizing its costs of production because:

  • a) the ratio of MPL to the MPK is equal to the ratio of the wage to the rental cost.       [true,false] 
  • b) the ratio of MPL to the MPK is greater than the ratio of the wage to the rental cost.       ["", ""] 
  • c) MRTSLK is less than the ratio of the wage to the rental cost.       ["", ""] 
  • d) the MPL divided by the wage is less than the MPK divided by the rental cost.       ["", ""] 
  • e) MRTSLK equals the ratio of input prices.       ["", ""] 
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