Results 101 to 110 of about 4,366 (211)

Archimedean Copulae and Positive Dependence. [PDF]

In the first part of the paper we consider positive dependence properties of Archimedean copulae. Especially we characterize the Archimedean copulae that are multivariate totally positive of order 2 (MTP2) and conditionally increasing in sequence. In the
Alfred Müller, Marco Scarsini
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Some applications of the Archimedean copulas in the proof of the almost sure central limit theorem for ordinary maxima

Open Mathematics, 2017
Our goal is to state and prove the almost sure central limit theorem for maxima (Mn) of X1, X2, ..., Xn, n ∈ ℕ, where (Xi) forms a stochastic process of identically distributed r.v.’s of the continuous type, such that, for any fixed n, the family of r.v.’
Dudziński Marcin, Furmańczyk Konrad
doaj   +1 more source

Hierarchical Archimedean Copulae

, 2012
This paper aims at explanation of the R-package HAC, which provides user friendly methods for dealing with high-dimensional hierarchical Archimedean copulae (HAC). A computationally eficient estimation procedure allows to recover the structure and the parameters of HACs from data.
Okhrin, Ostap, Ristig, Alexander
openaire   +1 more source

Tail Dependence among Agricultural Insurance Indices: The Case of Iowa County-Level Rainfalls [PDF]

Index insurance has been promoted as a cost-effective risk management alternative for agricultural producers in developing countries. In this paper, we ask whether spatially separated weather variables commonly used in index insurance design, such as ...
Liu, Pu, Miranda, Mario J.
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COMPARISON OF COPULA FAMILY (GAUSSIAN, ARCHIMEDEAN, AND REGRESSION) IN A CASE STUDY OF COMPOSITE STOCK PRICE INDEX ON INDONESIA STOCK EXCHANGE

Barekeng
Stocks are one of the most popular financial market instruments. On the other hand, stocks are an investment instrument that is widely chosen by investors because stocks are able to provide attractive profit levels.
Darwis Darwis, Bagus Sartono, Leny Yuliani   +2 more
doaj   +1 more source

Systemic Weather Risk and Crop Insurance: The Case of China [PDF]

The supply of affordable crop insurance is hampered by the existence of systemic weather risk which results in large risk premiums. In this article, we assess the systemic nature of weather risk for 17 agricultural production regions in China and explore
Ji Cao, Martin Odening, Ostap Okhrin, Wei Xu   +3 more
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A note on stochastic survival probabilities and their calibration [PDF]

In this note we use doubly stochastic processes (or Cox processes) in order to model the evolution of the stochastic force of mortality of an individual aged x.
Elena Vigna, Elisa Luciano, Jaap Spreeuw
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Stochastic ordering results on extreme order statistics from dependent samples with Archimedean copula

Journal of Inequalities and Applications
This paper considers parallel and series systems with heterogeneous components having dependent exponential lifetimes. The underlying dependence is assumed to be Archimedean and the component lifetimes are supposed to be connected according to an ...
Mansour Shrahili
doaj   +1 more source

CDO and HAC [PDF]

Modelling portfolio credit risk is one of the crucial challenges faced by financial services industry in the last few years. We propose the valuation model of collateralized debt obligations (CDO) based on copula functions with up to three parameters ...
Barbara Choroś, Ostap Okhrin, Wolfgang Härdle   +2 more
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Copulas in finance and insurance [PDF]

Copulas provide a potential useful modeling tool to represent the dependence structure among variables and to generate joint distributions by combining given marginal distributions. Simulations play a relevant role in finance and insurance. They are used
Elisa M. Molanes, Rosario Romera
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