安全资产是指获得AAA评级的发达国家的主权债资产和高等级公司债资产,特别是由一国政府发行的主权债曾被市场认为是零风险资产。2010年欧债危机爆发后,全球投资者疯狂追求安全资产。目前,投资者认为的安全资产主要集中于美国国债、德国国债和日本国债。安全资产在逐步减少资产的“绝对安全”这一概念不仅标志着信用评级机构的最高评级,而且融入政府部门审慎 Security assets refer to the sovereign debt assets and high-grade corporate debt assets of the developed countries that have been rated AAA. In particular, the sovereign debt issued by a government of a country was considered zero-risk assets by the market. After the outbreak of the European debt crisis in 2010, global investors are crazy about pursuing safe assets. At present, investors think security assets are mainly concentrated in the U.S. treasuries, German government bonds and Japanese government bonds. The concept of “absolute security” in the progressive reduction of assets by security assets not only marks the highest rating of credit rating agencies, but also integrates into prudent government departments