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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 …
Persistent link: https://www.econbiz.de/10011762259
-Periodic Power Law Singularity (LPPLS) model of financial bubbles. This model is particularly relevant because one of its parameters … synthetic price time series and on three well-known historical financial bubbles …
Persistent link: https://www.econbiz.de/10011514498
Forecasting stock market returns is one of the most effective tools for risk management and portfolio diversification. There are several forecasting techniques in the literature for obtaining accurate forecasts for investment decision making. Numerous empirical studies have employed such methods...
Persistent link: https://www.econbiz.de/10012268500
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) model of endogenous asset price bubbles to monitor crash risk. The model is calibrated to 15 years market history for five …
Persistent link: https://www.econbiz.de/10012419688
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". We observe both stable markets and large bubbles for both small and large markets. The data analysis shows no differences … successfully drives prices back towards the fundamental, but we observe very large bubbles in which the news apparently has no …
Persistent link: https://www.econbiz.de/10011979625
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We propose a Bayesian combination approach for multivariate predictive densities which relies upon a distributional state space representation of the combination weights. Several specifications of multivariate time-varying weights are introduced with a particular focus on weight dynamics driven...
Persistent link: https://www.econbiz.de/10013098263
Nonlinear, non-Gaussian state space models have found wide applications in many areas. Since such models usually do not allow for an analytical representation of their likelihood function, sequential Monte Carlo or particle filter methods are mostly applied to estimate their parameters. Since...
Persistent link: https://www.econbiz.de/10011891373