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Bootstrapping GMM Estimators for Time Series
(Vanderbilt University, 2001)
This paper establishes that the bootstrap provides asymptotic refinements for the generalized method of moments estimator of overidentified linear models when autocorrelation structures of moment functions are unknown. ...
Is There Chaos in the World Economy?A Nonparametric Test Using Consistent Standard Errors
(Vanderbilt University, 2001)
A positive Lyapunov exponent is one practical definition of chaos. We develop a formal test for chaos in a noisy system based on the consistent standard errors of the nonparametric Lyapunov exponent estimators. When our ...