Numerically Accelerated Importance Sampling for Nonlinear Non-Gaussian State Space Models

Autor: Siem Jan Koopman, Marcel Scharth, Andre Lucas
Přispěvatelé: Econometrics and Operations Research, Finance, A-LAB, Tinbergen Institute, Econometrics and Data Science
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Koopman, S J, Lucas, A & Scharth, M 2015, ' Numerically Accelerated Importance Sampling for Nonlinear Non-Gaussian State Space Models ', Journal of Business and Economic Statistics, vol. 33, no. 1, pp. 114-127 . https://doi.org/10.1080/07350015.2014.925807
Koopman, S J, Lucas, A & Scharth, M 2015, ' Numerically Accelerated Importance Sampling for Nonlinear Non-Gaussian State-Space Models ', Journal of Business and Economic Statistics, vol. 33, no. 1, pp. 114-127 . https://doi.org/10.1080/07350015.2014.925807
Journal of Business and Economic Statistics, 33(1), 114-127. American Statistical Association
ISSN: 0735-0015
Popis: This paper led to a publication in the 'Journal of Business & Economic Statistics' , 2015, 33 (1), 114-127. We introduce a new efficient importance sampler for nonlinear non-Gaussian state space models. We propose a general and efficient likelihood evaluation method for this class of models via the combination of numerical and Monte Carlo integration methods. Our methodology explores the idea that only a small part of the likelihood evaluation problem requires simulation. We refer to our new method as numerically accelerated importance sampling. The method is computationally and numerically efficient, facilitates parameter estimation for models with high-dimensional state vectors, and overcomes a bias-variance trade-off encountered by other sampling methods. An elaborate simulation study and an empirical application for U.S. stock returns reveal large efficiency gains for a range of models used in financial econometrics.
Databáze: OpenAIRE