Weak convergence of non-stationary multivariate marked processes with applications to martingale testing
This paper establishes the weak convergence of a class of marked empirical processes of possibly non-stationary and/or non-ergodic multivariate time series sequences under martingale conditions. The assumptions involved are similar to those in Brown's martingale central limit theorem. In particular, no mixing conditions are imposed. As an application, we propose a test statistic for the martingale hypothesis and we derive its asymptotic null distribution. Finally, a Monte Carlo study shows that the asymptotic results provide good approximations for small and moderate sample sizes. An application to the S&P 500 is also considered.
Year of publication: |
2007
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Authors: | Escanciano, J. Carlos |
Published in: |
Journal of Multivariate Analysis. - Elsevier, ISSN 0047-259X. - Vol. 98.2007, 7, p. 1321-1336
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Publisher: |
Elsevier |
Keywords: | Marked empirical processes Weak convergence Martingale hypothesis Non-stationary time series |
Saved in:
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