Interest Rates: Changes in prevailing interest rates significantly influence bond prices; when interest rates rise, bond prices typically fall, and vice versa.

Inflation Expectations: Anticipated future inflation erodes the real return on fixed-income investments, so rising inflation expectations usually depress bond prices.

Credit Rating: The creditworthiness of the issuer affects the perceived risk of default; a downgrade lowers the bond's price, while an upgrade increases it.

Economic Growth: Strong economic growth often leads to higher interest rates and inflation, which can negatively impact bond prices, while slower growth may boost them.

Market Sentiment: Investor confidence and risk appetite play a role; in times of uncertainty, investors may seek safety in bonds, driving up prices, and vice-versa.

Liquidity: Highly liquid bonds are more easily traded and tend to command higher prices than less liquid ones.

Supply and Demand: The balance between the supply of bonds being issued and investor demand for them directly impacts prices.

Government Policies: Fiscal and monetary policies, such as quantitative easing, can influence interest rates and bond yields, thereby affecting prices.