Firms and production - Law of Diminishing Returns

3 important questions on Firms and production - Law of Diminishing Returns

What does the law of diminishing returns state?

  • As input increases, while others are constant, output increases become smaller.
  • Eventually, increases may even become negative.
  • Relates to diminishing marginal returns to labor.

Describe the behavior of the Total Product of Labor (TPL) and Marginal Product of Labor (MPL) as labor increases.

  • TPL increases up to labor equal to 20.
  • MPL increases up to labor equal to 10.
  • Beyond labor equal to 10, MPL decreases, leading to reduced efficiency.

Why does the Marginal Product of Labor decrease after reaching a certain level of labor?

  • Growing labor force reduces the amount of capital per worker.
  • Less capital leads to decreased efficiency.
  • Overcrowding reduces job efficiency further.

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