Showing 1 - 10 of 4,858
to different methodologies, by employing a bootstrap technique. …
Persistent link: https://www.econbiz.de/10010591258
We develop an approximate solution method for a classical saving for retirement problem in case of random payment scheme and value at risk (VaR) defined investor preferences. As the results of our numerical calculations indicate our approximate approach provides greater accuracy and reduces...
Persistent link: https://www.econbiz.de/10009352660
Model uncertainty, in the context of derivative pricing, can be defined as the uncertainty on the value of a contingent … quantitative framework for defining model uncertainty in option pricing models. After discussing some properties which a … quantitative measure of model uncertainty should verify in order to be useful and relevant in the context of risk measurement and …
Persistent link: https://www.econbiz.de/10008792846
values of key economic indicators, with no information regarding the associated uncertainty. Our assessment is that policy …, presented in this paper quantifies the uncertainty of the coefficients of the behavioural equations, on a reduced version of the … incorporating the uncertainty into the decisional mechanism, have additional information which would help them in efficiently …
Persistent link: https://www.econbiz.de/10009401315
The management of a life insurance portfolio or pension fund must take intoaccount the temporal evolution of its liabilities and its assets through some variables:the factors and returns. Their behaviour is analysed statistically and we deduce it to avector error correction model (VECM). Using...
Persistent link: https://www.econbiz.de/10005515801
A new class of risk measures called cash sub-additive risk measures is introduced to assess the risk of future financial, non financial and insurance positions. The debated cash additive axiom is relaxed into the cash sub-additive axiom to preserve the original difference between the numeraire...
Persistent link: https://www.econbiz.de/10005534188
The integration of quantitative asset allocation models and the judgment of portfolio managers and analysts (i.e. qualitative view) dates back to a series of papers by Black and Litterman in the early 1990s. In this paper we improve the classical Black-Litterman model by applying more realistic...
Persistent link: https://www.econbiz.de/10005495775
We propose a new valuation principle for possibly non-traded assets based on an implicit definition of a benchmark. The valuation principle allows taking (default and shortfall) risk constraints explicitly into account. The resulting risk-adjusted value functional is monotonic, positively...
Persistent link: https://www.econbiz.de/10005495779
We address the problem of portfolio optimization under the simplest coherent risk measure, i.e. the expected shortfall. As is well known, one can map this problem into a linear programming setting. For some values of the external parameters, when the available time series is too short, portfolio...
Persistent link: https://www.econbiz.de/10005495793
In this paper we consider the problem of determining approximations for distortion risk measures of sums of non-independent random variables. First, we give an overview of the recent actuarial literature on distortion risk measures and convex bounds for sums of random variables. Then, we examine...
Persistent link: https://www.econbiz.de/10005407556