投资等级是对证券评定的资信等级。由于证券投资风险既大且变化多端,所以投资者需要一种客观公正的资信评价。一些证券资信评价机构承担了此项业务。美国两家最为著名的资信评价机构是摩迪投资者服务公司和标准普尔公司。他们依据发行证券公司的信用程度,运用一套科学方法对证券进行资信等级评定。一般而言,证券大致划分为投资级和投机级两类。
伦敦CMC Markets国际金融公司的一位分析人士,Michael Hewson说:下调(希腊)信贷等级已经让证券市场陷入危机,资本投资者纷纷推出。
The downgrade [Greece's] has "sent the bond markets into meltdown and equity investors toward the exits," said Michael Hewson, an analyst with CMC markets in London.
伦敦CMC Markets 国际金融公司的一位分析人士,Michael Hewson说:下调(希腊)信贷等级已经让证券市场陷入危机,资本投资者纷纷推出。
The downgrade [Greece's] has "sent the bond markets into meltdown and equity investors toward the exits, " said Michael Hewson, an analyst with CMC Markets in London.
她还呼吁创建欧洲信用评级机构,和那些为投资者评定公司和国家信用等级的大型私人评级机构竞争。
She also called for the creation of a European credit rating agency to rival large, private companies that rate the credit of companies and countries for investors.
They have a formula that defines how much Tier I and Tier II capital a bank has to hold and the amount depends on the risk class of their investments.
有一个公式可以计算出,一个银行到底需要持有多少一级和二级资本,其数量取决于他们投资项目的风险等级
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