Answer:
the 5 year A-rated corporate bond yields 0.3% more than the 10-year Treasury bond
Explanation:
the yield of a 10 year treasury bond = real risk free rate + average future inflation rate + (maturity premium x number of years) = 3.5% + 2.5% + (20% x 10 years) = 8%
the yield of a 5 year A-rated corporate bond = real risk free rate + average future inflation rate + liquidity premium + default risk premium + (maturity premium x number of years) = 3.5% + 2.5% + 0.5% + 0.8% + (20% x 5 years) = 8.3%
difference in yields = 8.3% - 8% = 0.3%