Question

Liza needs to buy a textbook for the next economics class. The price at the college bookstore is $\$ 65 .$ One online site offers it for $\$ 55$ and another site, for $\$ 57 .$ All prices include sales tax. The accompanying table indicates the typical shipping and handling charges for the textbook ordered online. a. What is the opportunity cost of buying online instead of at the bookstore? Note that if you buy the book online, you must wait to get it. b. Show the relevant choices for this student. What determines which of these options the student will choose? 

   Liza needs to buy a textbook for the next economics class. The price at the college bookstore is $\$ 65 .$ One online site offers it for $\$ 55$ and another site, for $\$ 57 .$ All prices include sales tax. The accompanying table indicates the typical shipping and handling charges for the textbook ordered online.
a. What is the opportunity cost of buying online instead of at the bookstore? Note that if you buy the book online, you must wait to get it.
b. Show the relevant choices for this student. What determines which of these options the student will choose?
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Macroeconomics
Macroeconomics
Paul Krugman, Robin… 4th Edition
Chapter 1, Problem 3 ↓

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The opportunity cost in monetary terms would be the cost of the book online plus the shipping cost minus the cost of the book at the bookstore. However, we should also consider the opportunity cost from the point of view of time. If Liza is ready to wait, she can  Show more…

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Liza needs to buy a textbook for the next economics class. The price at the college bookstore is $\$ 65 .$ One online site offers it for $\$ 55$ and another site, for $\$ 57 .$ All prices include sales tax. The accompanying table indicates the typical shipping and handling charges for the textbook ordered online. a. What is the opportunity cost of buying online instead of at the bookstore? Note that if you buy the book online, you must wait to get it. b. Show the relevant choices for this student. What determines which of these options the student will choose?
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Key Concepts

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Opportunity Cost
Opportunity cost is the value of the next best alternative that is foregone when a particular decision is made. It includes not only monetary costs but also any benefits that could have been gained from choosing the alternative option, such as saving time or convenience. Understanding opportunity cost is crucial in evaluating whether the savings on price justify the delay or any additional non-monetary costs.
Trade-off Analysis
Trade-off analysis involves comparing the costs and benefits associated with different options. In economic decision-making, this means weighing the lower monetary cost of one choice against potential non-monetary costs like the time delay or shipping fees. This analysis helps determine which alternative provides the best overall outcome based on individual preferences and priorities.
Rational Decision Making
Rational decision making is the process of selecting the option that maximizes overall benefit or utility after considering all relevant factors, including both explicit costs (such as the price paid) and implicit costs (such as time and convenience). This approach requires a systematic evaluation of different alternatives to make an informed choice.
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