A Bias Bound Approach to Non-parametric Inference
A Bias Bound Approach to Non-parametric Inference
复制标题
非参数推理的偏差约束方法
DOI:
10.1093/restud/rdz065
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Schennach, Susanne M
中科院分区:
文献类型:
--
作者:
Schennach, Susanne M
The traditional approach to obtain valid confidence intervals for non-parametric quantities is to select a smoothing parameter such that the bias of the estimator is negligible relative to its standard deviation. While this approach is apparently simple, it has two drawbacks: first, the question of optimal bandwidth selection is no longer well-defined, as it is not clear what ratio of bias to standard deviation should be considered negligible. Second, since the bandwidth choice necessarily deviates from the optimal (mean squares-minimizing) bandwidth, such a confidence interval is very inefficient. To address these issues, we construct valid confidence intervals that account for the presence of a non-negligible bias and thus make it possible to perform inference with optimal mean squared error minimizing bandwidths. The key difficulty in achieving this involves finding a strict, yet feasible, bound on the bias of a non-parametric estimator. It is well-known that it is not possible to consistently estimate the pointwise bias of an optimal non-parametric estimator (for otherwise, one could subtract it and obtain a faster convergence rate violating Stone’s bounds on the optimal convergence rates). Nevertheless, we find that, under minimal primitive assumptions, it is possible to consistently estimate anupper boundon the magnitude of the bias, which is sufficient to deliver a valid confidence interval whose length decreases at the optimal rate and which does not contradict Stone’s results.
登录
查看更多内容
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
Thomas M. Stoker
通讯作者:
Thomas M. Stoker
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
J. Pinkse;John W. Galbraith;D. Green;N. Heckman;J. Horowitz;Oliver Linton;Rosa L. Matzkin;P. Robinson;M. Slade
通讯作者:
M. Slade
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
T. Cai;Mark G. Low;Yin Xia
通讯作者:
Yin Xia
影响因子:
6.1
作者:
Armstrong, Timothy B.;Kolesar, Michal
通讯作者:
Kolesar, Michal
DOI:
10.1080/01621459.2015.1017578
发表时间:
2015-12-01
影响因子:
3.7
作者:
Calonico, Sebastian;Cattaneo, Matias D.;Titiunik, Rocio
通讯作者:
Titiunik, Rocio