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Nassim Taleb Explains In An IMF Paper Why The Fed’s And ECB’s Bank Stress Tests Are Bogus – Business Insider

A New Heuristic Measure of Fragility and Tail Risks: Application to Stress Testing Abstract Pdf

A better approach, according to Taleb and his IMF co-authors Elie Canetti, Tidiane Kinda, Elena Loukoianova, and Christian Schmeider, is to measure the difference between outcomes arising from different scenarios instead of focusing on the estimates of potential losses themselves.

According to Taleb, this is the real way to measure the “fragility” of a bank or a country in the event of a negative economic shock. Because point estimates are so prone to errors from faulty model assumptions, measuring the distance between them to detect how quickly losses pile up as the economic shock gets larger becomes a vastly more reliable measure of risk.

In other words, it’s not the size of the losses themselves that is important. Instead, it’s the rate of change of potential losses as the economic situation deteriorates that determines how fragile a bank is, by Taleb’s standards.

via Nassim Taleb Explains In An IMF Paper Why The Fed’s And ECB’s Bank Stress Tests Are Bogus – Business Insider.

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