Arbeitspapier
Bootstrap based asymptotic refinements for high-dimensional nonlinear models
We consider penalized extremum estimation of a high-dimensional, possibly nonlinear model that is sparse in the sense that most of its parameters are zero but some are not. We use the SCAD penalty function, which provides model selection consistent and oracle efficient estimates under suitable conditions. However, asymptotic approximations based on the oracle model can be inaccurate with the sample sizes found in many applications. This paper gives conditions under which the bootstrap, based on estimates obtained through SCAD penalization with thresholding, provides asymptotic refinements of size O (n −2) for the error in the rejection (coverage) probability of a symmetric hypothesis test (confidence interval) and O (n −1) for the error in rejection (coverage) probability of a one-sided or equal tailed test (confidence interval). The results of Monte Carlo experiments show that the bootstrap can provide large reductions in errors in coverage probabilities. The bootstrap is consistent, though it does not necessarily provide asymptotic refinements, even if some parameters are close but not equal to zero. Random-coefficients logit and probit models and nonlinear moment models are examples of models to which the procedure applie
- Sprache
-
Englisch
- Erschienen in
-
Series: cemmap working paper ; No. CWP06/23
- Klassifikation
-
Wirtschaft
- Thema
-
: extremum estimation
nonlinear models
high-dimensional inference
bootstrap based confidence intervals
asymptotic refinemen
- Ereignis
-
Geistige Schöpfung
- (wer)
-
Horowitz, Joel
Rafi, Ahnaf
- Ereignis
-
Veröffentlichung
- (wer)
-
Centre for Microdata Methods and Practice (cemmap)
- (wo)
-
London
- (wann)
-
2023
- DOI
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doi:10.47004/wp.cem.2023.0623
- Handle
- Letzte Aktualisierung
-
10.03.2025, 11:43 MEZ
Datenpartner
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Objekttyp
- Arbeitspapier
Beteiligte
- Horowitz, Joel
- Rafi, Ahnaf
- Centre for Microdata Methods and Practice (cemmap)
Entstanden
- 2023
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