Jane Has Been Saving $450 in Her Retirement Account Each

question 107

Multiple Choice

Jane has been saving $450 in her retirement account each month for the last 20 years and plans to continue contributing $450 each month for the next 20 years. Her account has been earning a 9 percent annual interest rate and she expects to earn the same rate for the next 20 years. Her twin brother, Hal, has not saved anything for the last 20 years. Due to sibling rivalry, he wants to have as much as Jane is expected to have at the end of 20 years. If Hal expects to earn the same annual interest rate as Jane, how much must Hal save each month to achieve his goal?

• A) $1,791.34
• B) $2,109.28
• C) $2,872.91
• D) $3,154.12

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Definitions:

Monopsony Power

Buyer’s ability to affect the price of a good.

Marginal Expenditure

The additional cost incurred from purchasing one more unit of a good or service.

Average Expenditure

Average expenditure is the amount of money spent per unit of goods or services purchased, calculated by dividing total expenditure by the total number of units bought.

Competitive Quantity

is the quantity of goods produced or services offered based on the equilibrium in a competitive market.