From the political letter itself, the security will naturally be higher. With the endorsement of government credit, security and yield can be fully guaranteed. Therefore, government credit bonds and local bonds are the first choice for many investors. Novices want to judge the security of political trust by themselves. The first is the administrative level. Simply put, the better the economy, the smaller the probability of local default and the higher the security. Other debt ratios, repayment rates, etc. , can be found in professional institutions such as Zheng Xin Investment Group. . I hope my answer can help you. Take it.