Suppose most investors expect the rate of inflation to be 2 percent next year, 4 percent the following year, and 3 percent thereafter. The real risk-free rate is 3 percent. The maturity risk premium is zero for bonds that mature in one year or less, 0.1 percent for two-year bonds; the MRP increases by 0.1 percent per year thereafter for 20 years, then becomes stable. What is the interest rate on one-year, 10-year, and 20-year Treasury bonds

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.