Write any formula you use, and explain how you arrive at the answer in your own words.

Write the name of any financial function you use, the inputs to it, and your input entries so I can understand how you got to your solution.

The real risk-free rate is 3 percent. The rate of inflation is expected to be 4 percent in years 1 and 2, and then 4.5 percent in Years 3 and 4, and 5 percent in each year thereafter. The liquidity and default risk premiums are equal to zero for Treasury securities. The 6-year bond's yield 0.6 percent more than the 4-year treasury bond's yield, and the maturity risk premium on the 6-year bond (MRP₆) is 0.9 percent. What is the maturity risk premium on the 4-year bond (MRP₄)?