The above table shows the total product schedule for the campus book store. If employees are paid $6 per hour and there are no other variable costs, then what is the marginal cost (MC) per book of increasing book sales from 83 to 87 books per hour?
A) $6.00
B) $4.00
C) $2.07
D) $1.50
D
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The invention of the integrated circuit by Jack Kilby of Texas Instruments gave rise to the information age. What did this technological change do the short-run supply curve?
A) It moved the economy up along a stationary short-run aggregate supply curve. B) It shifted the short-run aggregate supply curve to the left. C) It shifted the short-run aggregate supply curve to the right. D) It moved the economy down along a stationary short-run aggregate supply curve.
Suppose you have $200 with which you can buy shares of stock from two companies: ABC Hot Chocolate Company and XYZ Lemonade. Each company's stock currently sells for $100 per share. If the temperature next year is lower than average, the stock price for ABC will increase by $20, and the stock price for XYZ will not change. If the temperature next year is higher than average, the stock price for XYZ will increase by $20, and the stock price for ABC will not change. There is a 50% chance that it will be colder than average next year, and a 25% chance that it will be warmer than average. If you purchase two shares of ABC stock and no shares of XYZ stock, your expected gain will be ________.
A. $0 B. $20 C. $40 D. $30