Showing 1 - 10 of 1,013
In this paper we provide a unified methodology for conducting likelihood-based inference on the unknown parameters of a general class of discrete-time stochastic volatility (SV) models, characterized by both a leverage effect and jumps in returns. Given the nonlinear/non-Gaussian state-space...
Persistent link: https://www.econbiz.de/10014185810
Simulation estimators, such as indirect inference or simulated maximum likelihood, are successfully employed for … variance suffers from an additional component, which depends on the stochastic simulation involved in the estimation procedure …. To reduce this undesirable effect, one could increase the number of simulations (or the length of each simulation) and …
Persistent link: https://www.econbiz.de/10014197185
In Longstaff and Schwartz (2001) a method for American option pricing using simulation and regression is suggested, and … since then the method has rapidly gained importance. However, the idea of using regression and simulation for American …
Persistent link: https://www.econbiz.de/10014212073
Algorithms for simulation of a Lévy process X(t) are discussed, with particular emphasis on two algorithms … perform substantially better. Other algorithms are briefly surveyed and we sketch a new one for simulation of a tempered …
Persistent link: https://www.econbiz.de/10014082623
Kriging provides metamodels for deterministic and random simulation models. Actually, there are several types of … estimation of the trend in the input-output data of the underlying simulation model; this estimation deteriorates the Kriging … replications that varies with the input combination of the simulation model. To compare the performance of intrinsic Kriging and …
Persistent link: https://www.econbiz.de/10014142481
In this short note we derive an exact simulation scheme for the joint distribution of (r(t),N(t)), where r denotes the … generate biases if the model uses larger simulation time-steps.Large time-step simulation of short rate models and the American …
Persistent link: https://www.econbiz.de/10012998214
In this paper we present an efficient implementation of automatic differentiations of random variables (see 'https://ssrn.com/abstract=2995695' https://ssrn.com/abstract=2995695).Using this implementation can increase the speed of the calculation of the automatic differentiation and reduce the...
Persistent link: https://www.econbiz.de/10012950879
We present a stochastic simulation model for estimating forward-looking corporate probability of default and loss given … identify the default condition, and solve the model by Monte Carlo simulation. First, we present the model; then we show how to …
Persistent link: https://www.econbiz.de/10013023044
Markov chain Monte Carlo (MCMC) methods have an important role in solving high dimensionality stochastic problems characterized by computational complexity. Given their critical importance, there is need for network and security risk management research to relate the MCMC quantitative...
Persistent link: https://www.econbiz.de/10013029835
In this paper we develop a new form of agent-based model for limit order books based on heterogeneous trading agents, whose motivations are liquidity driven. These agents are abstractions of real market participants, expressed in a stochastic model framework. We develop an efficient way to...
Persistent link: https://www.econbiz.de/10013030178