Debt markets involve the trading of fixed income instruments where issuers like governments and corporations borrow money from investors at fixed interest rates. A bond is a loan where the issuer is obligated to repay the principal along with predetermined interest to the investor. While equity ownership involves risk, debt instruments make the investor a creditor with a higher claim than shareholders. The face value of a bond is the amount repaid, while the coupon rate is the periodic interest payment calculated on the face value. Debt markets play a vital role in allocating resources for economic growth. Bonds, debentures, commercial paper and other instruments allow balancing risk in investment portfolios.