Question

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Activity
Lydia is a senior in high school. She works 20 hours a week at a popular clothing store. She is trying to save as much
money as possible for her college tuition. However, she has to buy a dress for prom, pay her car insurance, and get a
birthday gift for her sister. This week she received a $400 paycheck. She wants to deposit the entire check in her
savings account for her college tuition, but she stops herself. She decides instead to put $100 in the bank, spend $200
for her prom dress, pay $80 for her car insurance, and buy her little sister a $20 birthday gift. While shopping, she
sees a doll worth $21, which she thinks her sister will absolutely love. As a result, she decided to buy the more
expensive doll and spend less on her dress.

Did Lydia make an all-or-nothing or a marginal decision while spending her money? ​

Answer 1

marginal decision

Step-by-step explanation:

Marginal decision involves spending a little more or a little less than what has already been planned for based on the benefit to be gotten. If the marginal benefit exceeds the marginal cost, then the choice is a good choice. Marginal decision are made by using marginal analysis, that is comparing the cost and benefits of spending a little more or a little less.

In this scenario, she spends $1 more to buy her sister a doll because she thinks her sister would love it. The marginal cost in this case is $1. As a result on spending more on the gift, she spends less on her dress.