推荐回答(1个)
所谓杠杆,从狭义上讲,是指资产与股东权益之比;从广义讲,则是指通过负债实现以较小的资本金控制较大的资产规模,从而扩大盈利能力或购买力。
自从次贷危机爆发以来,“去杠杆化”一词遍从国外一直流行到国内。所谓“去杠杆化”,是指公司或者个人减少使用金融杠杆,把原来通过各种方式“借”到的钱退还出去的这样一个潮流。
去杠杆化会的影响
那么,去杠杆化将如何影响当前的资本和资本市场呢?美国债券之王比尔·格罗斯的最新观点是,美国去杠杆化进程,已经导致了该国三大主要资产类别(股票、债券、房地产)价格的整体下跌。格罗斯认为,全球金融市场目前处于去杠杆化的进程中,这将导致大多数资产的价格出现下降,包括黄金、钻石、谷物这样的东西。“我们经常说总有机会存在于市场的某个地方,但我要说现在不是时候。”格罗斯表示,一旦进入去杠杆化进程,包括风险利差、流动性利差、市场波动水平、乃至期限溢酬都会上升。资产价格将因此受到冲击。而且这个进程将不是单向的,而是互相影响、彼此加强的。比如,当投资者意识到次贷风险并解除在次级债券上的投资杠杆时,那些和这些债券有套利关系的其他债券、持有这些债券的其他投资者以及他们持有的其他品种,都会遭受影响。这个过程可能从有“瑕疵”的债券蔓延到无瑕疵的债券,并最终影响市场的流动性,进而冲击实体经济。
杠杆率一般是指资产负债表中总资产与权益资本的比率。高杠杆率意味着在经济繁荣阶段,金融机构能够获得较高的权益收益率,但当市场发生逆转时,将会面临收益大幅下降的风险。商业银行、投资银行等金融机构一般都采取杠杆经营模式。次贷危机爆发前,美国商业银行的杠杆率一般为10-20倍,投资银行的杠杆率通常在30倍左右。
杠杆率的优点
引入杠杆率作为资本监管的补充手段,其主要优点为:一是反映股东出资的真金白银对存款人的保护和抵御风险的作用,有利于维持银行的最低资本充足水平,确保银行拥有一定水平的高质量资本(普通股和留存利润)。二是能够避免加权风险资本充足率的复杂性问题,减少资本套利空间。本次金融危机的教训表明,在新资本协议框架下,如果商业银行利用新资本协议的复杂性进行监管套利, 将会严重影响银行的资本水平。有关数据显示,一些银行的核心资本充足率和杠杆比率出现背离。2008年年末,瑞士信贷(Credit Suisse)的核心资本充足率为13.1% ,但杠杆比率只有2.9%;UBS核心资本充足率为11.5%,杠杆比率却只有2.6%。
通过引入杠杆率,能够避免过于复杂的计量问题,控制风险计量的风险。三是有利于控制银行资产负债表的过快增长。通过引入杠杆率,使得资本扩张的规模控制在银行有形资本的一定倍数之内,有利于控制商业银行资产负债表的过快增长。
杠杆率的缺点
杠杆率也有其内在缺陷:一是对不同风险的资产不加以区分,对所有资产都要求同样的资本,难以起到鼓励银行有效控制资产风险的目的。二是商业银行可能通过将资产表外化等方式规避杠杆率的监管要求。三是杠杆率缺乏国际统一的标准和定义, 同时对会计准则有很强的依赖性。由于杠杆率的相关项目主要来源于资产负债表,受会计并表和会计确认规则的影响很大,在各国会计准则有较大差异的情况下,该指标难以在不同国家进行比较。
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