Stress Testing Stress Tests: Challenging the Authority of Indicators
24 Pages Posted: 14 Jun 2012
Date Written: June 13, 2012
This paper examines macroprudential stress tests carried out by financial supervisors from a legal perspective. Stress tests are highly contingent because of their use of a number of controversial indicators such as adverse scenarios and risk models. At the same time, they constitute highly effective exercises of public authority. From a public law perspective, this raises their question whether the current legal framework is suitable. In light of the potential of supervisory stress tests to cause externalities and to second-guess financial regulation, the paper argues that supervisory stress tests should be regulated on the international level. The paper makes specific proposals for international legal rules relating to the design and conduct of stress tests as well as their use and follow-up measures.
Keywords: Stress tests, financial regulation, financial supervision, value-at-risk, Basel Accord, indicators, global administrative law, international public authority, public law
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