EBK ECONOMICS: PRINCIPLES AND POLICY
13th Edition
ISBN: 9780100605930
Author: Blinder
Publisher: YUZU
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Chapter 8.A, Problem 2TY
To determine
Instance of falling marginal grades and rising average grades.
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Luke is not very experienced with Excel and thus, like many people, doesn’t know how to exploit its advantages. If Luke were your employee, what might you do to ensure he doesn’t underestimate how much Excel can do?
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…
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EBK ECONOMICS: PRINCIPLES AND POLICY
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- Every week, Mary plays the piano for three hours, and her grade on each English test is 80 percent. Last week, after playing for three hours, Mary considered playing for another hour. She decided to play for another hour and cut her study time by one hour But last week, her English grade fell to 60 percent. Did Mary make her decision on the margin? OA Mary's decision was not made at the margin because she could have chosen not to play the piano but didn't OB. Mary's decision was not made at the margin because the marginal cost of a lower grade always exceeds its marginal benefit Oc. Mary's decision was made at the margin because her grade fell by only 20 percentage points OD Mary made her decision at the margin because she considered the benefit and cost of one additional hour of playing the piano OE Mary's decision was not made at the margin because she didn't compare the total benefit and total cost of a third hour of playing the pianoarrow_forwardHow 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_forward
- what are the two most significant issues that occur for the current marginalist theory of the company when the firm employs constant-returns-to-scale (CRS) technology? Please answer correctly.arrow_forwardHow can a programmer profit from the ability to learn new languages, even if they are already proficient in a number of programming languages?arrow_forwardOne fitness club charges a $10 promo sign-up fee and $15 per month. Another club charges a $25 promo signup fee and $10 per month. For what number of months is the cost of the clubs equal?arrow_forward
- Imagine that you own one of several popular restaurants in your area. Due to the Covid Pandemic of 2020, all restaurants were forced to close down for two months. You are now allowed to reopen your restaurant to the public. During this time, labor costs were reduced however, overhead such as rent, electricity, etc. was still a large percentage of your total costs. You are facing a dilemma; you are short on funds. What options should you consider? For example, should you raise menu prices to make up for the lost revenue? Should you lower menu prices to attract more customers? Is your customer volume elastic? If you raise prices and the customer volume falls will the increase in prices compensate for the loss of volume? If it does not, is there some way you can make up the revenue shortfall? If you lower menu prices and revenue falls is there some way you can increase your business revenue? Explain your reasoning in terms of demand and elasticity.arrow_forwardRefer to the figure. What is the marginal cost of the 15th hour spent on this activity? (Round to the nearest tenth) Total Cost E b n Z a=122 b= 82 c=56 x=9 y = 15 z = 19 Hoursarrow_forwardA firm is thinking of hiring an additional worker to their organization who can increase total productivity by 100 units a week. The cost of hiring him is $1,500 per week. If the price of each unit is $12, which of the following is correct? Group of answer choices the MR of hiring the worker is $1,500. The MC of hiring the worker is $1,200. The worker should be hired at that wage because the marginal benefit exceeds the marginal cost. All of the above are correct. None of the above is correct.arrow_forward
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