Showing 1 - 10 of 699
In this paper the performance of locally risk-minimizing hedge strategies for European options in stochastic volatility … large class of diffusion-type stochastic volatility models, and they are as easy to implement as usual delta hedges. Our … simulation results on model risk show that the locally risk-minimizing hedges are robust with respect to uncertainty and even …
Persistent link: https://www.econbiz.de/10005858246
We propose several connectedness measures built from pieces of variance decompositions, and we argue that they provide natural and insightful measures of connectedness among financial asset returns and volatilities. We also show that variance decompositions define weighted, directed networks, so...
Persistent link: https://www.econbiz.de/10010500191
In this paper, we examine the evolution of the S&P500 returns volatility around market crashes using a Markov …-Switching model. We find that volatility typically switches into the high volatility state well before a crash and remains in the high … volatility by uniformed traders result in a crash. …
Persistent link: https://www.econbiz.de/10010294846
squared DJIA return is used as the variability measure. The main findings are as follows: (i) the potential market risk in the … potential market risk fluctuated a lot during 2008, especially in early August and in the middle of September; and (iii) the … actual market risk in the DJIA was considerably higher near the end of 2008, especially in October, compared with the rest of …
Persistent link: https://www.econbiz.de/10010321428
There is a renewed interest of banks and supervisors in operational risk. In the new Capital Adequacy Framework of June …
Persistent link: https://www.econbiz.de/10005857015
Praktiker wie Akademiker setzen sich im Allgemeinen mit Finanzrisiken vertieft auseinander und vernachlässigen dabei die übrigen Risiken. Damit geht ein unnötiger Wertverzehr einher...
Persistent link: https://www.econbiz.de/10005857042
to condition default intensities of mortgages on relevant economic risk drivers. We calibrate our model on a large … from CreditRisk+ as commonly applied in the industry. The conditional loss distribution and risk measures for a large … aggregated res-idential mortgage default risk is not only driven by the rating but also by variables such as the loan …
Persistent link: https://www.econbiz.de/10005858102
In this paper we discuss some statistical pitfalls that may occur in modeling cross-dependences with copulas in financial applications. In particular we focus on issues arising in the estimation and the empirical choice of copulas as well as in the design of time-dependent copulas.
Persistent link: https://www.econbiz.de/10005858145
explained by an individual’s perception of the risk that is involved whenever an outcome is to be received in the future. This … risk may concern the size of the actual outcome or the endowment consumption stream to which the outcome is added. Both … experiments. We show how relative degrees of changes in risk over time can predict choices. …
Persistent link: https://www.econbiz.de/10005858206
. Because of risk, the firm may default. The firm manager takes investment and default decisions in order to maximize the value …
Persistent link: https://www.econbiz.de/10005858212