Abreu and Brunnermeier (2003) have argued that bubbles are not suppressed by arbitrageurs because they fail to … with the alternative according to which bubbles persist due to the difficulty of agreeing on the end of bubbles. We present …. We find overwhelming evidence that the beginning of bubbles is much better constrained that their end. Our results are …

bubbles. By using the formalism of dynamical system theory, we explain what drives the bubbles and how foreshocks or … rationalises the log-periodic power law singularity pattern documented in many historical financial bubbles. The notion of ‘ghosts …

Inspired by the question of identifying the start time τ of financial bubbles, we address the calibration of time …. Applied to synthetic models of financial bubbles with a well-defined transition regime and to a number of financial time …-defined reasonable determinations of the starting times for major bubbles such as the bubbles ending with the 1987 Black-Monday, the 2008 …