国债和企业债的风险差异有哪些？

Group 1 - The core difference between government bonds and corporate bonds lies in credit risk, with government bonds backed by national credit and having a very low default risk, while corporate bonds depend on the issuer's financial health and can face higher default probabilities, especially for lower-rated bonds [1] - Government bonds have a strong repayment guarantee as their repayment is included in the annual fiscal budget, while corporate bonds are subject to market fluctuations and operational risks [1] Group 2 - Interest rate risk affects both types of bonds, but government bonds are more sensitive due to their longer durations, while corporate bonds also face credit spread changes that can amplify price declines during market downturns [2] - Both bond types are vulnerable to inflation, but corporate bonds may have an advantage if issuers can adjust prices or optimize costs, thus maintaining more stable real returns compared to long-term government bonds [2] Group 3 - Liquidity risk varies significantly, with government bonds being highly liquid and easily tradable, while corporate bonds' liquidity depends on the issuer's size and credit rating, with smaller or lower-rated issuers facing potential liquidity issues [3] - High-rated corporate bonds from large state-owned enterprises tend to have better liquidity compared to those from smaller or lower-rated companies [3] Group 4 - Policy risk impacts government and corporate bonds differently, with government bonds influenced by macroeconomic fiscal and monetary policies, while corporate bonds are more susceptible to industry-specific regulations and policies that can directly affect their credit status [4] - Changes in fiscal policy and central bank operations generally do not pose substantial risks to government bond principal, whereas corporate bonds can be significantly affected by industry regulations that may increase financing costs or disrupt cash flows [4]