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A maximal inequality for local empirical processes under weak dependence

Luis Alvarez, Cristine Pinto

arXiv 3 Jul 2023 · Econometrics

arXiv:2307.01328 · PDF · DOI · OpenAlex · Extracted main text

Abstract

We introduce a maximal inequality for a local empirical process under strongly mixing data. Local empirical processes are defined as the (local) averages $\frac{1}{nh}\sum_{i=1}^n \mathbf{1}{x - h \leq X_i \leq x+h}f(Z_i)$, where $f$ belongs to a class of functions, $x \in \mathbb{R}$ and $h > 0$ is a bandwidth. Our nonasymptotic bounds control estimation error uniformly over the function class, evaluation point $x$ and bandwidth $h$. They are also general enough to accomodate function classes whose complexity increases with $n$. As an application, we apply our bounds to function classes that exhibit polynomial decay in their uniform covering numbers. When specialized to the problem of kernel density estimation, our bounds reveal that, under weak dependence with exponential decay, these estimators achieve the same (up to a logarithmic factor) sharp uniform-in-bandwidth rates derived in the iid setting by \cite{Einmahl2005}.

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8
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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
1Einmahl, U. and D. M. Mason (2005) Uniform in bandwidth consistency of kernel-type function estimators1.00054100%
2Rio, E (2017) Asymptotic Theory of Weakly Dependent Random Processes0.7375260%
3van der Vaart, A. W. and J. A. Wellner (1996) Weak Convergence and Empirical Processes0.7373367%
4Merlevède, F., M. Peligrad, and E. Rio (2009) Bernstein inequality and moderate deviations under strong mixing conditions0.6443267%
5Cattaneo, M. D., R. P. Masini, and W. G. Underwood (2022) Yurinskii's coupling for martingales0.51121100%
6Escanciano, J. C (2020) Uniform rates for kernel estimators of weakly dependent data0.51121100%
7Belloni, A., V. Chernozhukov, I. Fernández-Val, and C. Hansen (2017) Program evaluation and causal inference with high-dimensional data0.40511100%
8Merlevède, F., M. Peligrad, and E. Rio (2010, June) (2010) A bernstein type inequality and moderate deviations for weakly dependent sequences0.40511100%

Showing the top 8 of 8 scored citations.