The marginal propensity to consume is defined as:

A) ?C/?Yd.
B) ?S/?Yd.
C) ?Yd/?C.
D) ?Yd/?S.

A

Economics

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A recent article suggests that the introduction of the new iPhone 6 increased the demand for iPhone protective cases. The article suggests that these two goods are

A) substitutes and their indifference curves are close to being straight lines. B) complements and their indifference curves are close to being straight lines. C) substitutes and their indifference curves are close to being L shaped. D) complements and their indifference curves are close to being L shaped.

Economics

The relationship between the quantity of inputs and the quantity of outputs is called a:

A. cost function. B. production function. C. profit function. D. resource function.

Economics