If diminishing marginal returns have already set in for Golden Lark Woodworks, and the marginal product of the 6th carpenter is 8 chairs, then the marginal product of the 7th carpenter is

A) negative.
B) less than 8 chairs.
C) more than 8 chairs.
D) zero.

Answer: B

Economics

Which of the following countries is NOT a member of the Eurozone?

A) Germany B) Ireland C) Spain D) Poland

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Which of the following can be thought of as a barrier to entry?

A) scale economies. B) patents. C) strategic actions by incumbent firms. D) all of the above

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Economics