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Elasticity is a very popular concept in economics and physics, recently exported and reinterpreted in the statistical field, where it has given form to the so-called elasticity function. This function has proved to be a very useful tool for quantifying and evaluating risks, with applications in...
Persistent link: https://www.econbiz.de/10013161568
The aim of this work was to test how returns are distributed across multiple asset classes, markets and sampling frequency. We examine returns of swaps, equity and bond indices as well as the rescaling by their volatilities over different horizons (since inception to Q2-2020). Contrarily to some...
Persistent link: https://www.econbiz.de/10012596311
We propose several numerical algorithms to compute the distribution of gross loss in a positively dependent catastrophe insurance portfolio. Hierarchical risk aggregation is performed using bivariate copula trees. Six common parametric copula families are studied. At every branching node, the...
Persistent link: https://www.econbiz.de/10013368496
This paper suggests a new approach to evaluate realized covariance (RCOV) estimators via their predictive power on return density. By jointly modeling returns and RCOV measures under a Bayesian framework, the predictive density of returns and ex-post covariance measures are bridged. The forecast...
Persistent link: https://www.econbiz.de/10012697796
The objectives of this paper are to analyse the presence of multifractality in daily exchange rates of the US dollar (USD), British Pound (GBP), Euro (EUR), and Japanese Yen (JPY) relative to the Indian Rupee (INR) for a specific period (1999-2018) and to investigate the source of the observed...
Persistent link: https://www.econbiz.de/10015194278
to as PD-LGD correlation (here PD refers to probability of default, which is often used synonymously with default rate …). There is a large literature on modelling stochastic LGD and PD-LGD correlation, but there is a dearth of literature on using … deviation probabilities across a wide variety of PD-LGD correlation models that have been proposed in the literature. …
Persistent link: https://www.econbiz.de/10012203783
The co-dependence between assets tends to increase when the market declines. This paper develops a correlation measure … focusing on market declines using the expected shortfall (ES), referred to as the ES-implied correlation, to improve the … existing value at risk (VaR)-implied correlation. Simulations which define period-by-period true correlations show that the ES …
Persistent link: https://www.econbiz.de/10012004764
Netherlands were asked to choose between train and plane, given scenarios for price and travel time. Conclusion / findings: The … results point to a significant correlation between price sensitivity and travel time, with price sensitivity being lowest for …
Persistent link: https://www.econbiz.de/10015323447
correlation among individual forecasts explains the group level forecast performance. In an experiment in which participants make …
Persistent link: https://www.econbiz.de/10012587644
, where both output price and production cost are stochastic processes, and add a novel focus on how the correlation between … correlation between the processes, as it seeks a greater profitability variance which maximizes its value. …
Persistent link: https://www.econbiz.de/10012795559