A stairwell in a certain office building is always congested at 12:00 p. m. and 1:00 p. m. The congestion is so bad that people have been complaining to the building's owner. Which of the following methods would be the most efficient way of reducing congestion?
a. Charge everyone who uses the stairwell when it is congested the same fee. People who value the use of the stairs the most will be the ones who use the stairwell at peak times. b. Assign each person in the building a time when they are allowed to use the stairwell. c. Hold a lottery to determine who wins the right to use the stairwell at peak times. d. Encourage people to voluntarily keep off the stairwell during peak times.

Profits from using currency options and futures.on july 2, the two-month futures rate of the mexican peso contained a 2 percent discount (unannualized). there was a call option on pesos with an exercise price that was equal to the spot rate. there was also a put option on pesos with an exercise price equal to the spot rate. the premium on each of these options was 3 percent of the spot rate at that time. on september 2, the option expired. go to the oanda.com website (or any site that has foreign exchange rate quotations) and determine the direct quote of the mexican peso. you exercised the option on this date if it was feasible to do so. a. what was your net profit per unit if you had purchased the call option? b. what was your net profit per unit if you had purchased the put option? c. what was your net profit per unit if you had purchased a futures contract on july 2 that had a settlement date of september 2? d. what was your net profit per unit if you sold a futures contract on july 2 that had a settlement date of september 2