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This paper introduces the minCluster portfolio, which is a portfolio optimization method combining the optimization of downside risk measures, hierarchical clustering and cellwise robustness. Using cellwise robust association measures, the minCluster portfolio is able to retrieve the underlying...
Persistent link: https://www.econbiz.de/10014514018
A clustering procedure is introduced based on the Hausdorff distance as a similarity measure between clusters of elements. The method is applied to the financial time series of the Dow Jones industrial average (DJIA) index to find companies that share a similar behavior. Comparisons are made...
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This paper verifies the endogenous mechanism and economic intuition on volatility clustering using the coexistence of … processes can endogenously generate volatility clustering and long range dependence in volatility observed in financial markets …. Economically, volatility clustering occurs when neither the fundamental nor trend following traders dominate the market and when …
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The inhomogeneity of the cross-sectional distribution of realized assets’ volatility is explored and used to build a …-sectional distribution of realized volatility is captured by a finite Gaussian mixture model plus a uniform component that represents … abnormal variations in volatility. Based on the cross-sectional mixture model, at each time point, memberships of assets to …
Persistent link: https://www.econbiz.de/10012302505
Over 50 years ago, two physicists Montroll and Weiss in the physical context of dispersive transport and diffusion introduced stochastic process, named Continuous-Time Random Walk (CTRW). The trajectory of such a process is created by elementary events ‘spatial’ jumps preceded by waiting...
Persistent link: https://www.econbiz.de/10014105816
Volatility clustering is a well-known effect in equity markets. In simple meaning, volatility clustering refers to a … tested two hypotheses: (1) firstly, if there is a volatility clustering present in equity factor strategies, (2) secondly …, whether past factor volatility predicts future factor performance. We were able to confirm the first hypothesis. However, a …
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