Abstract
The estimation of Quantile Regression with Selection (QRS) requires the estimation of the entire quantile process several times to estimate the parameters that model self-selection. Moreover, closed-form expressions of the asymptotic variance are too cumbersome, making the bootstrap more convenient to perform inference. I propose streamlined algorithms for the QRS estimator that significantly reduce computation time through preprocessing techniques and quantile grid reduction for the estimation of the parameters. I show the optimization enhancements and how they can improve the precision of the estimates without sacrificing computational efficiency with some simulations.
Funding source: Ministerio de Universidades
Award Identifier / Grant number: RMZ-18
Funding source: Ministerio de Ciencia e Innovación
Award Identifier / Grant number: MCIN/AEI/10.13039/501100011033
Acknowledgments
I would like to thank Manuel Arellano Stéphane Bonhomme, and Domenico Depalo for helpful comments and discussion. This work is part of the I + D + i project Ref. TED2021-131763A-I00 financed by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR. I gratefully acknowledge financial support from the Spanish Ministry of Universities and the European Union-NextGenerationEU (RMZ-18).
References
Arellano, M., and S. Bonhomme. 2017a. “Quantile Selection Models with an Application to Understanding Changes in Wage Inequality.” Econometrica 85 (1): 1–28. https://doi.org/10.3982/ecta14030.Search in Google Scholar
Arellano, M., and S. Bonhomme. 2017b. “Sample Selection in Quantile Regression: A Survey.” In Handbook of Quantile Regression, 209–24. Chapman and Hall/CRC.10.1201/9781315120256-13Search in Google Scholar
Chen, S., and Q. Wang. 2023. “Quantile Regression with Censoring and Sample Selection.” Journal of Econometrics 234 (1): 205–26. https://doi.org/10.1016/j.jeconom.2021.11.018.Search in Google Scholar
Chernozhukov, V., I. Fernández-Val, and B. Melly. 2022. “Fast Algorithms for the Quantile Regression Process.” Empirical Economics 62 (1): 7–33, https://doi.org/10.1007/s00181-020-01898-0.Search in Google Scholar
Heckman, J. J. 1979. “Sample Selection Bias as a Specification Error.” Econometrica: Journal of the Econometric Society 47 (1): 153–61. https://doi.org/10.2307/1912352.Search in Google Scholar
Koenker, R., and G. Bassett. 1978. “Regression Quantiles.” Econometrica: Journal of the Econometric Society 46 (1): 33–50, https://doi.org/10.2307/1913643.Search in Google Scholar
Ma, S., and M. R. Kosorok. 2005. “Robust Semiparametric m-Estimation and the Weighted Bootstrap.” Journal of Multivariate Analysis 96 (1): 190–217. https://doi.org/10.1016/j.jmva.2004.09.008.Search in Google Scholar
Pereda-Fernández, S. 2023. “Identification and Estimation of Triangular Models with a Binary Treatment.” Journal of Econometrics 234 (2): 585–623. https://doi.org/10.1016/j.jeconom.2021.11.019.Search in Google Scholar
Pereda-Fernández, S. 2025. “Decomposition of Differences in Distribution Under Sample Selection and the Gender Wage Gap.” Journal of Business & Economic Statistics 43 (2): 378–90. https://doi.org/10.1080/07350015.2024.2385823.Search in Google Scholar
Portnoy, S., and R. Koenker. 1997. “The Gaussian Hare and the Laplacian Tortoise: Computability of Squared-Error Versus Absolute-Error Estimators.” Statistical Science 12 (4): 279–300. https://doi.org/10.1214/ss/1030037960.Search in Google Scholar
Sancetta, A., and S. Satchell. 2004. “The Bernstein Copula and its Applications to Modeling and Approximations of Multivariate Distributions.” Econometric Theory 20 (3): 535–62, https://doi.org/10.1017/s026646660420305x.Search in Google Scholar
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Articles in the same Issue
- Frontmatter
- Research Articles
- The Story of a Model: The First-Order Diagonal Bilinear Autoregression
- Maximum Likelihood Estimation of Regression Effects in State Space Models
- Software
- QR.break: An R Package for Structural Breaks in Quantile Regression
- Practitioner's Corner
- Fast Algorithms for Quantile Regression with Selection
Articles in the same Issue
- Frontmatter
- Research Articles
- The Story of a Model: The First-Order Diagonal Bilinear Autoregression
- Maximum Likelihood Estimation of Regression Effects in State Space Models
- Software
- QR.break: An R Package for Structural Breaks in Quantile Regression
- Practitioner's Corner
- Fast Algorithms for Quantile Regression with Selection