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Thursday, March 28, 2024

Dragon-Kings, Black Swans And The Prediction Of Crises

Courtesy of Tyler Durden

Didier Sornette on “Dragon-Kings, Black Swans and the Prediction of Crises” – for all you Taleb fans:

This leads to two consequences, one pessimistic and the other one more optimistic. The first one is the unavoidable evidence that extreme events occur much more often than would be predicted or expected from the observations of small, medium and even large events. Thus, catastrophes and crises are with us all the time. On the other hand, we have argued that the dragon-kings reveal the presence of special mechanisms. These processes provide clues that allow us to  diagnose the maturation of a system towards a crisis, as we have documented in a series of examples in various systems.

We have emphasized the use of the concept of a “phase transition – bifurcation – catastrophe – tipping – point,” which is crucial to learn how to diagnose in advance the symptoms of the next great crisis, as most crises occur under only smooth changes of some control variables, without the need for an external shock of large magnitude.

 

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