Mrs. o is negotiating to purchase a tract of land from dc company, a calendar year taxpayer. dc bought this land six years ago for $480,000. according to a recent appraisal, the land is worth $800,000 in the current real estate market. according to dc's director of tax, the company's profit on the sale will be taxed at 35 percent if the sale occurs this year. however, this tax rate will definitely decrease to 21 percent if the sale occurs next year. mrs. o is aware that dc would prefer the sale close next year. however, mrs. o needs the land immediately to begin construction of a new retail outlet. she offers to pay $875,000 for the land with the stipulation that the sale close by december 31. should dc accept mrs. o's offer?

Because of the violent nature of the sport, professional american football players are at risk of suffering concussions (or brain injuries) during the violent collisions that occur between players during the game. violent collisions involving hits to the head are particularly risky. suppose the commissioner of the national football league (nfl) institutes a rule requiring players to wear a new, lighter helmet that is designed to reduce head trauma during collisions between players on the field. while the new helmets the probability of a concussion resulting from each individual collision, at the same time the new helmets could also give football players an incentive to play more , which could potentially the amount of violent collisions and thus the number of concussions suffered by nfl players, all else equal.