The Following Question Refers to the Figure Below, Which Depicts

question 21

Multiple Choice

The following question refers to the figure below, which depicts the age structure populations.

In the figure, populations of a plant species labeled I, II, and III are depicted using simplified age structures containing three age classes: young seedlings, middle-aged juveniles, and older adults. Which population(s) appear(s) to have stable growth?

• A) I
• B) III
• C) I and II
• D) II and III

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Definitions:

MPS

The marginal propensity to save, which is the proportion of an increase in income that is saved rather than spent on consumption.

Disposable Income

Funds at households' discretion for savings and spending pursuits after the deduction of income taxes.

Autonomous Consumption

The minimum level of consumption that would still occur even if a consumer had no income, based on basic needs and obligations.

MPS

Marginal Propensity to Save, which is the fraction of an increase in income that is not spent on an increase in consumption.