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This is the table given for levels of output for different levels of inputs.

\begin{pmatrix} Q & K & L\\ 100 & 3 & 6\\ 200 & 5 & 10\\ 300 & 7.5 & 15 \\ 400 & 10 & 20 \\ 500 & 12.5 & 25 \\ 600 & 15 & 30 \end{pmatrix}

These are questions on my Final review guide and I am getting different answers than my professor and feel like he may be wrong. Here are the questions.

1) Which of the following conclusions can be drawn from this information?

  • A)Increasing returns to scale exist between 100 and 200 units of output.

    • B) Constant returns to scale exist throughout all levels of production.
  • C) Labor is subject to diminishing marginal productivity in the short run.

  • D) No firm conclusions can be drawn.

2)Returns to scale are greatest at which level of output?

  • A) 100-200 units

  • B) 200-400 units

  • C) 400-600 units

  • D) There is insufficient information to answer the question.

3) At which level of input are there constant returns to scale?

  • A) 400-600 units

  • B) Constant returns to scale exist throughout all levels of production.

  • C) Constant returns to scale do not exist at any level of production.

  • D) No firm conclusions can be drawn.

The Answers I concluded were 1) D, 2) C, and 3) C

I can give you my professor's answers if need be. But if what you guys respond with is the same as what my professor has then I will contact him.

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  • $\begingroup$ Do you know how to determine increasing, constant, and decreasing returns to scale in general? $\endgroup$ – Herr K. May 2 at 19:23
  • $\begingroup$ Yes I do, at first, it made it hard because there is no equation but after looking at it farther I understand now why I am wrong. $\endgroup$ – Displayer124 May 2 at 20:06

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