Sornette, Didier; Cauwels, Peter; Smilyanov, Georgi - 2017
We inspect the price volatility before, during, and after financial asset bubbles in order to uncover possible … commonalities and check empirically whether volatility might be used as an indicator or an early warning signal of an unsustainable … volatility increase before a crash, but we do not see this as a consistent behavior. We examine forty well-known bubbles and …