Hudson Oil and Gas Inc., based in Houston, has a plant in Norway that builds cargo ships used to transport the company’s products around the world. Each year this plant has been profitable, but Hudson Inc. is not able to convert the profits into U. S. dollars and take them out of the country. What type of convertibility does this represent

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.