eterminants of Interest Rate for Individual Securities You are considering an investment in 30-year bonds issued by a corporation. The bonds have no special covenants. The Wall Street Journal reports that 1-year T-bills are currently earning 3.80 percent. Your broker has determined the following information about economic activity and the corporation bonds: Real interest rate = 3.40% Default risk premium = 3.55% Liquidity risk premium = 1.60% Maturity risk premium = 3.30%