Showing 491 - 500 of 766,837
Persistent link: https://www.econbiz.de/10003042068
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
This paper studies the causal mechanisms behind poverty traps, building on evidence of nonlinear wealth dynamics among a poor pastoralist population, the Boran from southern Ethiopia. In particular, it explores the roles of adverse weather shocks and individual ability to cope with such shocks...
Persistent link: https://www.econbiz.de/10014049150
This paper is concerned with near-optimal control of manufacturing systems consisting of two unreliable machines in tandem and having the objective of minimizing the total discounted cost of inventories/shortages over an infinite horizon. Asymptotic optimal feedback controls are constructed with...
Persistent link: https://www.econbiz.de/10014218552
This paper proposes a new approach, entitled discrete event simulation with probabilistic event list (DESPEL), for … traditional discrete event simulation approach, which is based on replications to find the project completion time, this approach … only requires one simulation run. This approach is similar to the program evaluation and review technique (PERT) approach …
Persistent link: https://www.econbiz.de/10014157152
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
This paper describes a procedure for efficiently simulating a multi asset Heston model with an arbitrary correlation structure. Very little literature can be found on the topic (e.g. Wadman (2010) and Dimitroff et al. (2011)), the latter being very restrictive on correlation assumptions. The...
Persistent link: https://www.econbiz.de/10012999389
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