Bringing Down Wall Street as Ratings Let Loose Subprime Scourge
``I view the ratings agencies as one of the key culprits,'' says Joseph Stiglitz, 65, the Nobel laureate economist at Columbia University in New York. ``They were the party that performed that alchemy that converted the securities from F- rated to A-rated. The banks could not have done what they did without the complicity of the ratings agencies.''