Should you invest into bonds? Learn about factors that influence the price of a bond, such as interest rates, credit ratings, yield, and market sentiment.Capital appreciation: Bond prices can rise for several reasons, including a drop in interest rates and an improvement in the credit standing of the issuer. Learn about the relationship between bond prices and interest rates. Question: Use the graph and the supply and demand for bonds to show what will happen to interest rates if the economy's GDP expands. When the Federal Reserve purchases bonds, the price of bonds will go up. This is because the demand for bonds has increased, which increase bond prices. The spike in bond yields presents an opportunity for fixed income investors to earn capital gains and diversify portfolios. In recent months, there has been a substantial increase in the supply of corporate bonds. Are driving up costs for existing tenants.