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Large scale, computationally expensive simulation models pose a particular challenge when it comes to estimating their … parameters from empirical data. Most simulation models do not possess closed form expressions for their likelihood function …, requiring the use of simulation-based inference, such as simulated method of moments, indirect inference or approximate Bayesian …
Persistent link: https://www.econbiz.de/10013439970
Persistent link: https://www.econbiz.de/10010438204
This paper will outline the functionality available in the CovRegpy package for actuarial practitioners, wealth managers, fund managers, and portfolio analysts written in Python 3.7. The major contributions of CovRegpy can be found in the CovRegpy_DCC.py, CovRegpy_IFF.py, CovRegpy_RCR.py,...
Persistent link: https://www.econbiz.de/10014253907
This paper develops an unbiased Monte Carlo approximation to the transition density of a jump-diffusion process with state-dependent drift, volatility, jump intensity, and jump magnitude. The approximation is used to construct a likelihood estimator of the parameters of a jump-diffusion observed...
Persistent link: https://www.econbiz.de/10012904646
We develop a simulation algorithm that generates multivariate samples with exact means, covariances, and multivariate … simulation of risk factors for the risk management of financial institutions. We use the Kollo measure of multivariate skewness …
Persistent link: https://www.econbiz.de/10012855299
methodology is thus termed "ROM simulation''. We discuss certain classes of random orthogonal matrices and show how each class … produces samples with different characteristics. ROM simulation has applications to many problems that are resolved using … illustration, we apply ROM simulation to determine the value-at-risk of a stock portfolio …
Persistent link: https://www.econbiz.de/10014204404
In this paper an attempt has been made to estimate the parameters of Gielis superformula (modified by various functions). Simulated data have been used for this purpose. The estimation has been done by the method of simulated annealing. It has been found that the simulated annealing method is...
Persistent link: https://www.econbiz.de/10014057421
simulation experiment we conclude that among the studied analytical approaches the one based on approximating the distribution of … the multiple period shocks by a skew-t was the best. It was almost as good as the simulation based alternative. We also …
Persistent link: https://www.econbiz.de/10013155481
simulation exercise is informative about the actual ranking of various estimators when applied to a particular problem. We …
Persistent link: https://www.econbiz.de/10010229930
In the context of an autoregressive panel data model with fixed effect, we examine the relationship between consistent parameter estimation and consistent model selection. Consistency in parameter estimation is achieved by using the tansformation of the fixed effect proposed by Lancaster (2002)....
Persistent link: https://www.econbiz.de/10003817214