所谓债券的质量,主要是指债券的可靠性、风险程度和收益能力。由专门的证券评级机构——资信评估公司使用简单易懂的符号,向投资者揭示了债券的质量。按国际惯例,债券分为三等九级,即 A、B、C 三等。每等又分三级,即 AAA、BBB、CCC 等。一般来说,A 级债券即最高级别债券,特点是本金和收入安全性最大,受经济环境变化的影响较小,被称为“金边债 The so-called bond quality, mainly refers to the reliability of bonds, the degree of risk and profitability. By a specialized securities rating agencies - credit rating companies using easy-to-understand symbols to investors revealed the quality of bonds. According to international practice, the bonds are divided into third and ninth class, that is, A, B, C three. Each level is divided into three levels, namely AAA, BBB, CCC and so on. In general, Class A bonds, the highest level of bonds, are characterized by the highest security of principal and income and less affected by changes in the economic environment and are referred to as the ”