Which of the following do the marginal propensity to consume and the marginal propensity to save have in common?

a. They contradict Keynes’s original model.
b. They apply only to certain household consumers.
c. It is impossible for either to be zero.
d. They both require change in disposable income to calculate.

d. They both require change in disposable income to calculate.

Economics

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Refer to Figure 4-1. Arnold's marginal benefit from consuming the fourth burrito is

A) $0. B) $1.00. C) $2.50. D) $3.00.

Economics

Draw a graph illustrating a competitive firm in short-run equilibrium that is earning an economic profit. Be sure to label all curves and axes correctly.

What will be an ideal response?

Economics