f a household’s income falls from R20 000 to R17 000 and its consumption falls from R18 000 to R15 000, then its: a) marginal propensity to consume is –0,67. b) marginal propensity to consume is 0,88. c) marginal propensity to consume is 0,20. d) marginal propensity to save is zero. e) marginal propensity to save is 0,12.

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