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Persistent link: https://www.econbiz.de/10003719524
A great proportion of stock dynamics can be explained using publicly available information. The relationship between dynamics and public information may be of nonlinear character. In this paper we offer an approach to stock picking by employing so-called decision trees and applying them to XETRA...
Persistent link: https://www.econbiz.de/10003636039
In this paper we provide a review of copula theory with applications to finance. We illustrate the idea on the … allocation problems, Value-at-Risk and time series models. The paper is complemented with an extensive simulation study and an …
Persistent link: https://www.econbiz.de/10003727552
Risk management technology applied to high dimensional portfolios needs simple and fast methods for calculation of Value-at-Risk (VaR). The multivariate normal framework provides a simple off-the-shelf methodology but lacks the heavy tailed distributional properties that are observed in data. A...
Persistent link: https://www.econbiz.de/10003324161
Normal distribution of the residuals is the traditional assumption in the classical multivariate time series models. Nevertheless it is not very often consistent with the real data. Copulae allows for an extension of the classical time series models to nonelliptically distributed residuals. In...
Persistent link: https://www.econbiz.de/10003850706
Persistent link: https://www.econbiz.de/10003951049
A flexible framework for the analysis of tail events is proposed. The framework contains tail moment measures that allow for Expected Shortfall (ES) estimation. Connecting the implied tail thickness of a family of distributions with the quantile and expectile estimation, a platform for risk...
Persistent link: https://www.econbiz.de/10011349502
Classical asset allocation methods have assumed that the distribution of asset returns is smooth, well behaved with … Event Driven ASset allocation approach determines the dependence between assets at tail measures. TEDAS uses adaptive Lasso … to three gestalts differing in allocation weights’ determination: a Cornish-Fisher Value-at-Risk minimization, Markowitz …
Persistent link: https://www.econbiz.de/10011349525
Decision making can be a complex process requiring the integration of several attributes of choice options. Understanding the neural processes underlying (uncertain) investment decisions is an important topic in neuroeconomics. We analyzed functional magnetic resonance imaging (fMRI) data from...
Persistent link: https://www.econbiz.de/10010379977
assets and opposite tail movements are essential to the asset allocation problem, since they determine the level of risk in a … Driven ASset allocation, one studies the dependence between assets at different quantiles. In a hedging exercise, TEDAS uses … active risk factors, an adjustment for intertemporal correlation is made. Finally, the asset allocation weights are …
Persistent link: https://www.econbiz.de/10010365113