ECON 101 Study Guide - Quiz Guide: Opportunity Cost, Fixed Cost, Marginal Revenue

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ECON 101 Full Course Notes

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Chapter 13: (easy) your aunt is thinking about opening a hardware store. She estimates that it would cost $ 500,000/year to rent the location and buy the stock. In addition she would have to quit her , 000/year job as an accountant. What is your aunt"s opportunity cost of running a hardware store per year. The opportunity cost of running the hardware store is ,000, consisting of. ,000 to rent the store and buy the stock and a ,000 opportunity cost of her job as an accountant, which she has to quit to run the store. Since the total opportunity cost of ,000 exceeds revenue of ,000, your aunt should not open the store: (moderate) a commercial fisher notices the following relationship: 30: what is the mp of each hour spent fishing, draw the fisher"s production function and explain your result, the fisher has a fixed cost of . The opportunity cost of fisher"s time is /hr.

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$30,000 QUESTION 3 Imagine you live in a society with progressive taxation. Your friend makes half of your salary and pays 20 percent in income taxes. Which rate most likely would be your income tax rate? (5 points) 2 percent 10 percent 20 percent 40 percent QUESTION 4 02_08_g4_q1.png Look at the bar graph. What kind of tax is depicted here? (5 points) Flat Proportional Progressive Regressive QUESTION 5 Which of these is an example of indirect tax? (5 points) Corporate income tax Gasoline tax Paycheck withholdings Property tax QUESTION 6 02_08_g6_q1.jpg Look at the graph. How does the tax shown differ from a proportional tax? (5 points) A progressive tax increases with income level; a proportional tax decreases with income level. A regressive tax decreases with income level; a proportional tax is the same percentage for everyone. A progressive tax increases with income level; a proportional tax is the same percentage for everyone. A regressive tax is the same percentage for everyone; a proportional tax increases with income level. QUESTION 7 Which of these investments may pay dividends? (5 points) Bonds Savings accounts Certificates of deposit Stocks QUESTION 8 02_08_g8_q1.jpg Assume that the blue section (D) of the chart stands for stocks and the red (A) for mutual funds. This would most likely represent the portfolio of a (5 points) young investor middle-aged investor nearly-retired investor elderly investor QUESTION 9 Assume that the blue section (D) of the chart stands for stocks and the red (A) for mutual funds. This would most likely represent the portfolio of a (5 points) young investor middle-aged investor nearly-retired investor elderly investor QUESTION 9 Which of the following investment plans best reflects diversification? (5 points) Ben has an investment portfolio with numerous stocks and futures. Kenya invests in stocks, bonds, and mutual funds. Jeremiah takes out a CD and keeps the rest of his money in a savings account. Molly splits her investment between mutual funds and a money market account. QUESTION 10 Rudy is a 52-year-old freelance writer who wants a short-term, low-risk investment with low liquidity. Which of these investment vehicles should he consider? (5 points) CD IRA Mutual fund Stocks QUESTION 11 Hometown Bank Products Minimum Opening Deposit Interest Paid per Year Monthly Fee Checking $100.00 0.00% $0.00 Savings $250.00 0.50% $0.00 Platinum Savings $1,000.00 0.75% $10.00 CD (1year) $1,000.00 1.05% $0.00 CD (5 year) $1,000.00 1.80% $0.00 Money Market $1,000.00 0.75% $10.00 Vesna has $1,000 to invest, and she will need to have her money available in the next six months. Which product will yield her the highest interest in her time frame with no monthly fee? (5 points) One-year CD Checking Platinum savings Savings QUESTION 12 Which type of credit involves a set limit based on what a consumer pays up front? (5 points) Loans Installment credit Secured credit cards Unsecured credit cards QUESTION 13 Milo has received several credit card offers. Which of the following features is the riskiest? (5 points) High credit limit Fixed interest Low credit limit Variable interest QUESTION 14 02_08_g14.jpg Amun has four credit cards, each with a different interest rate. He charges $1,000 to each card in January and does not pay down any of the cards for four months. Based on the data in the chart, which two cards accrue the most amount of interest over time? (5 points) Credit 1 and Credit 3 Credit 1 and Credit 4 Credit 2 and Credit 3 Credit 2 and Credit 4 QUESTION 15 Samuel needs to decrease his expenses. To which category should he make cuts first? (5 points) Entertainment Housing Transportation Utilities QUESTION 16 Your friend's job pays $5.00 per hour and he works 20 hours per week. His tax rate is 20 percent. Assuming he works 50 weeks of the year, his yearly gross income is (5 points) $1,000 $4,000 $5,000 $10,000 QUESTION 17 02_08_g17_q3.jpg Gillian graphed her expenses in this pie chart to evaluate how she was spending her income. She would like to purchase health insurance, and calculates that it will cost 10 percent of her income for a year to save for the premium. How could she best shift her expenses to save 10 percent? (5 points) Buy a fuel-efficient car Cut household electricity usage Eat out less often Reduce payments on her debt QUESTION 18 Jonah has a high-paying job and would like to start saving for retirement. He has evaluated his budget in order to add savings to his expenses. He has a moderate amount of debt, and he spends a great deal on housing. His utilities, transportation, and health, expenses are fixed, and he spends little on recreation or eating out. Which action is he most likely to take? (5 points) Consider less costly housing options Pay off his debt Reduce his recreation expenses Search for a job with a higher salary QUESTION 19 Location Starting Salary Cost of Living (per person) Moving Costs Baltimore, MD $51,000 $22,000 $1,200 Cincinnati, OH $42,000 $19,000 none Miami, FL $42,000 $22,000 $1,500 New York, NY $49,000 $26,000 $1,300 Constance will graduate within a year with her teaching certification. She has evaluated teaching jobs in four states. A teaching job in which city would result in the most disposable income in the first year? (5 points) Baltimore, MD Cincinnati, OH Miami, FL New York, NY

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Salvatore Chapter 1:

Discussion Questions: 9. How is the concept of a normal return on investment related to the distinction between business and economic profit?

Problems:

5. Determine which of the two investment projects a manager should choose if the discount rate of the firm is 10%. The first project promises a profit of $100,000 in each of the next 4 years, while the second project promises a profit of $75,000 in each of the next 6 years.

6. Determine which of the two investment projects of Problem 5 the manager should choose if the discount rate of the firm is 20%.

15. Integration Problem Samantha Roberts has a job as a pharmacist earning $30,000 per year, and she is deciding whether to take another job as the manager of another pharmacy for $40,000 per year or to purchase a pharmacy that generates a revenue of $200,000per year. To purchase the pharmacy, Samantha would have to use her $20,000 savings and borrow another $80,000 at an interest rate of 10% per year. The pharmacy that Samantha is contemplating purchasing has additional expenses of $80,000 for supplies, $40,000 for hired help, $10,000 for rent, and $5,000 for utilities. Assume that income and business taxes are zero and that the repayment of the principle of the loan does not start before 3 years. (a) What would be the business and economic profit if Samantha purchased the pharmacy? Should Samantha purchase the pharmacy? (b) Suppose that Samantha expects that another pharmacy will open nearby at the end of 3 years and that this will drive the economic profit of the pharmacy to zero. What would the revenue of the pharmacy be in 3 years? (c) What theory of profit would account for profits being earned by the pharmacy during the first 3 years of operation? (d) Suppose that Samantha expects to sell the pharmacy at the end of 3 years for $50,000 more than the price she paid for it and that she requires a 15% return on her investment. Should she still purchase the pharmacy?

Spreadsheet Problem (see attached Excel doc)

Using the data below, (Excel doc) where column A represents student numbers, column B the finishing time for a 1 mile race for 10 students, and column C the age of the students, (a) Use the data analysis tools to plot a line graph of all the finishing times. (b) Calculate a mean, median, mode, sample variance, sample standard deviation, and coefficient of variation to statistically describe the data. (c) Use Excel to fine the covariance between the two variables. What does the covariance indicate about the relationship between finishing time and age?

Note:

P15(d): Change ââ¦ for $50,000 more than â¦â to ââ¦ for $50,000 less than â¦â Compare the present value of economic profit in each of the next three years and the loss of $50,000 in the third year using 15% as the discount rate.

The spreadsheet problem (b): Calculate a mean, â¦. to statistically describe the data of both variables, Time and Age.

Individual problems:

3-1 You won a free ticket to see a Bruce Springsteen concert (assume the ticket has no resale value). U2 has a concert the same knight, and this represents your next-best alternative activity. Tickets to the U2 concert cost $80, and on any particular day, you would be willing to pay up to $100 to see this band. Assume that there are no additional costs of seeing either show. Based on the information presented, what is the opportunity cost of seeing Bruce Springsteen?

3-3 Because of the housing bubble, many houses are now selling for much less than their selling price just 2 to 3 years ago. There is evidence that homeowners with virtually identical houses tend to ask for more is they paid more for the house. What fallacy are they making?

Salvatore Chapter 3:

Discussion Questions:

9. How would you react to a sales managerâs announcement that he or she has in place a marketing program to maximize sales?

Problems:

1(a). Given the following total-revenue function: TR= 9Q - Q^2

Derive the total-, average-, and marginal- revenue schedules from Q=0 to Q=6 by 1âs.

7. Given the total-cost schedule: Q 0 1 2 3 4

TC 1 12 14 15 20

Derive the average- and marginal-cost schedules.

9. With the total-revenue curve of Problem 1 and the total-cost curve of problem 7, derive the total-profit function and show how the firm determines the profit-maximizing level of output.

Note:

DQ9: Does maximum sales (revenue) equal maximum profit (see figure 3-4)?

Revised P1(a): Derive the total-revenue, average-revenue, and marginal-revenue schedules from Q = 0 to Q = 4 by 1s.

Average revenue (AR) = total revenue (TR)/Q

Marginal revenue (MR) = change in total revenue/change in Q

For example:

Q	TR	AR	MR
2	14	7 (=14/2)
3	18	6 (=18/3)	4 (=(18-14)/(3-2)

Revised P9: With the total-revenue schedule of Problem 1 and the total-cost schedule of Problem 7, show the profit-maximizing level of output (profit=TR-TC).

Froeb et al. Chapter 4:

Individual problems:

4-5 Your insurance firm processes claims through its newer, larger high-tech facility and its older, smaller low-tech facility. Each month, the high-tech facility handles 10,000 claims, incurs $100,000 in fixed costs and $100,000 in variable costs. Each month, the low-tech facility handles 2,000 claims, incurs $16,000 in fixed costs and $24,000 in variable costs. If you anticipate a decrease in the number of claims, where will you lay off workers?

4-6 A copier company wants to expand production. It currently has 20 workers who share eight copiers. Two months ago, the firm added two new copiers, and output increased by 100,000 pages per day. One month ago, they added five workers, and productivity also increased by 50,000 pages per day. Copiers cost about twice as much as workers. Would you recommend they hire another employee or buy another copier?

ECON 101 Study Guide - Quiz Guide: Opportunity Cost, Fixed Cost, Marginal Revenue

ECON 101 Full Course Notes

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