Consumption and saving Suppose Maria gets a sales bonus at her place of work that gives her an extra $400 of disposable income. She chooses to spend $300 and save the remaining $100. From this, you can infer:
a. Maria's marginal propensity to consume is 0.75
b. Maria's marginal propensity to consume is 0.25
c. Maria's marginal propensity to save is 0.75
d. Maria's marginal propensity to save is 0.25
