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promising class of models are the hierarchical Archimedean copulae (HAC) that allow for non-exchangeable and non … for stock indices the copula parameter changes dynam- ically but the hierarchical structure is constant over time …
Persistent link: https://www.econbiz.de/10010270704
demand and supply conditions. In three out of the four investigated cases, exchange rate posed as a main source of risk for …
Persistent link: https://www.econbiz.de/10010291928
at Risk and Expected Shortfall from the time-varying copula models. We found that both reach low values when the oil … countries, using copula models. We used the Normal, Plackett, rotated-Gumbel, and Student's t copulas to measure the constant … dependence, and we captured the dynamic dependence using the Generalized Autoregressive Score with the Student's t copula. We …
Persistent link: https://www.econbiz.de/10012611099
We propose a measure for systemic risk: CoVaR, the value at risk (VaR) of financial institutions conditional on other … institutions being in distress. We define an institution's (marginal) contribution to systemic risk as the difference between CoVaR … systemic risk contribution. We argue for macro-prudential regulation based on the degree to which such characteristics forecast …
Persistent link: https://www.econbiz.de/10010287112
Archimedean opulas and allows for general non-exchangeable dependency structures. We show that the structure of the copula can be … uniquely recovered from all bivariate margins. We derive the distribution of the copula value, which is particularly useful for …
Persistent link: https://www.econbiz.de/10010263762
This paper make an overview of the copula theory from a practical side. We consider different methods of copula … Gaussian copulae but also Hierarchical Archimedean Copulae. Afterwards we provide an empirical part to support the theory. …
Persistent link: https://www.econbiz.de/10010270716
and dynamic Value-at-Risk of portfolio returns and Profit-and-Loss function. In our findings copula based multivariate …. 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 this paper we apply different copulae to the calculation of the static …
Persistent link: https://www.econbiz.de/10010274191
The forward premium puzzle (FPP) is the negative correlation between the forward premium and the realized exchange rate return at maturities of a month and beyond. Some recent evidence shows that at maturities of multiple years and at the highest intra day frequency the correlation is positive...
Persistent link: https://www.econbiz.de/10010325480
This paper documents the existence of large structural breaks in the unconditional correlations among the British pound, Norwegian krone, Swedish krona, Swiss franc, and euro exchange rates (against the US dollar) during the period 1994-2003. Using the framework of dynamic conditional...
Persistent link: https://www.econbiz.de/10010325483
The Japanese zero-interest rate period provides a "natural experiment" for investigating the effectiveness and transmission channels of sterilized intervention when traditional monetary policy options are constrained. This paper takes advantage of the fact that all interventions in the JPY/USD...
Persistent link: https://www.econbiz.de/10010320998