EBK ECONOMICS: PRINCIPLES AND POLICY
13th Edition
ISBN: 8220100605932
Author: Blinder
Publisher: Cengage Learning US
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Chapter 8.A, Problem 2TY
To determine
Instance of falling marginal grades and rising average grades.
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Nancy Lerner is trying to decide how to allocate her time in studying for her economics course. There are two examinations in this course. Her overall score for the course will be the minimum of her scores on the two examinations. She has decided to devote a total of 1,200 minutes to studying for these two exams, and she wants to get as high an overall score as possible. She knows that on the first examination if she doesn’t study at all, she will get a score of zero on it. For every 10 minutes that she spends studying for the first examination, she will increase her score by one point. If she doesn’t study at all for the second examination she will get a zero on it. For every 20 minutes she spends studying for the second examination, she will increase her score by one point.
Explain how studying for an exam is subject to the law of diminishing marginal productivity.
The law of diminishing marginal productivity implies that the optimal amount of studying is however many hours will lead to your highest possible score. After this point, your performance falls and you should not study any more.
Assuming you organize your studying reasonably, you will focus on the parts of the text that are most likely to show up on the exam and most likely to raise your grade. As you study less relevant material, your additional time spent studying will yield fewer additional points on the exam. At some point, additional studying can have a negative return.
The law of diminishing marginal productivity pertains to studying in a group only. If you study with one or two people, your grade will likely improve because they can teach you information you don’t know. However, at some point, as you add another person, the grades for everyone decline.
The more and…
When thinking about cost analysis in Microeconomics, what are the real-world problems that occur when applying theories of scale? Describe and give an example of each.
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EBK ECONOMICS: PRINCIPLES AND POLICY
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- How do you apply managerial decisions to all human economic decision?arrow_forwardAaron has been spending five nights studying for his math tests and his current grade in the course is 90 percent. He decides to take a part-time job and study only four nights for his next test. As a result, after his next test, his grade falls to 70 percent. What is Aaron's marginal cost of working one night a week? Aaron's marginal cost of working one night a week is OA. 20 percentage points OB. greater than 70 percentage points and less than 90 percentage points OC. 70 percentage points OD. 90 percentage pointsarrow_forwardAccording to the fallacy of composition, "What is true for one is not true for all." Select one: True Falsearrow_forward
- You have decided that you want to attend a costume party as Black Panther. You estimate that it will cost $40 to assemble your costume. After spending $40 on the costume, you realize that the additional pieces you need will cost you $25 more. What is the marginal cost of completing the costume (in dollars)?arrow_forwardThe law of diminishing returns indicates that?arrow_forwardGive an example of an opportunity cost that an accountant would not count as a cost. Why would the accountant ignore this cost?arrow_forward
- Let's play around with the concepts of total cost versus marginal cost Suppose a grocery store figures out that it costs $500 per week to hire a full time worker who can fill pickup orders. Create a table with room for 5 columns and 6 rows in your notes Use the top row for titles. The first (left) column should be titled Number of Workers and should have 0, 1, 2, 3, 4 as values. We're going to analyze whether the store should hire 0, 1, 2, 3 or 4 workers. Title the next column Total Cost (TC) and the third column Marginal Cost (MC). Put an X in the MC square corresponding to 0 workers. That would be the cost of going from negative 1 workers to 0 workers, let's leave it blank YOu'll see that marginal columns tend to start across from the first unit. We'll use the remaining columns later. What is the Marginal Cost per week of hiring the 4th worker? $500 O $1,000 O $1,500 $2,000arrow_forwardYour Econ. Professor bought airline tickets to leave a conference early on Saturday morning. He later found out that he needed to present a paper later that Saturday, so he changed his tickets at a cost of $200. When he got to the conference, he discovered that he was scheduled twice: on Friday and on Saturday. He was given his choice of when to give the presentation. He said he would present on Saturday, because he paid an extra $200 in order to stay. Explain why you agree or disagree with his logic.arrow_forwardHow would you derive marginal cost from total cost?arrow_forward
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