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Local Polynomial Estimation of Time-Varying Parameters in Nonlinear Models

Dennis Kristensen, Young Jun Lee

arXiv 10 Apr 2019 · Econometrics

arXiv:1904.05209 · PDF · Extracted main text

Abstract

We develop a novel asymptotic theory for local polynomial extremum estimators of time-varying parameters in a broad class of nonlinear time series models. We show the proposed estimators are consistent and follow normal distributions in large samples under weak conditions. We also provide a precise characterisation of the leading bias term due to smoothing, which has not been done before. We demonstrate the usefulness of our general results by establishing primitive conditions for local (quasi-)maximum-likelihood estimators of time-varying models threshold autoregressions, ARCH models and Poisson autogressions with exogenous co--variates, to be normally distributed in large samples and characterise their leading biases. An empirical study of US corporate default counts demonstrates the applicability of the proposed local linear estimator for Poisson autoregression, shedding new light on the dynamic properties of US corporate defaults.

Citation extraction

31
references
91
in-text mentions
31
distinct cited
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self-citations
16,722
main-text words

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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Bardet, J.-M., P. Doukhan, and O. Wintenberger (2022) Contrast estimation of time-varying infinite memory processes1.000113100%
2Fan, J., N. E. Heckman, and M. P. Wand (1995) Local polynomial kernel regression for generalized linear models and quasi-likelihood functions1.00073100%
3Agosto, A., G. Cavaliere, D. Kristensen, and A. Rahbek (2016) Modeling corporate defaults: Poisson autoregressions with exogenous covariates (PARX)0.97614393%
4Dahlhaus, R., S. Richter, and W. B. Wu (2019) Towards a general theory for nonlinear locally stationary processes0.95014486%
5Dahlhaus, R. and S. Subba Rao (2006) Statistical inference for time-varying ARCH processes0.87452100%
6Truquet, L (2019) Local stationarity and time-inhomogeneous markov chains0.81142100%
7Truquet, L (2020) A perturbation analysis of markov chains models with time-varying parameters0.73732100%
8Doukhan, P. and O. Wintenberger (2008) Weakly dependent chains with infinite memory0.6936333%
9Vazquez-Abad, F. J. and H. J. Kushner (1992) Estimation of the derivative of a stationary measure with respect to a control parameter0.5112250%
10Newey, W. K. and D. McFadden (1994) Large sample estimation and hypothesis testing0.5112250%

Showing the top 10 of 31 scored citations.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1Indirect Inference for Locally Stationary Models0.81142
2A new GARCH model with a deterministic time-varying intercept0.51122
3Testing parametric additive time-varying GARCH models0.40511