Some poor countries appear to be falling behind rather than catching up with rich countries. Which of the following could explain the failure of a poor country to catch up? a. The poor country has a health epidemic such as the Zika virus b. The poor country imposes heavy tariffs to protect infant industries c. The poor country has many corrupt officials d. All of the above

Which of the following is an element of inventory holding costs? a. material handling costs b. investment costs c. housing costs d. pilferage, scrap, and obsolescence e. all of the above are elements of inventory holding costs.

Which of the following comes after a period of recession in the business cycle? a. stagflation b. a drought c. a boom d. recovery

Until recently, hamburgers at the city sports arena cost $4.70 each. the food concessionaire sold an average of 13 comma 000 hamburgers on game night. when the price was raised to $5.40, hamburger sales dropped off to an average of 6 comma 000 per night. (a) assuming a linear demand curve, find the price of a hamburger that will maximize the nightly hamburger revenue. (b) if the concessionaire had fixed costs of $1 comma 500 per night and the variable cost is $0.60 per hamburger, find the price of a hamburger that will maximize the nightly hamburger profit.