Distributional Effects in Censored Quantile Regressions with Endogeneity and Heteroskedasticity

Xi Wang

Papers from arXiv.org

Abstract: Distributional effects, characterized by quantile frameworks, are well-known to capture heterogeneous impacts of economic factors across the unobserved relative ranks. Censored outcome, endogenous regressor and heteroskedastic error are prevalent in empirical work, yet challenge the consistency of existing quantile estimation methods. This paper develops a Sequential Control Function Censored Quantile (SCFCQ) estimator for distributional effects in censored quantile models with unbounded endogenous regressors. Our method combines the sequential analysis with the control function approach, particularly adapting for conditional heteroskedasticity in the endogenous regressor. The estimation algorithm is a two-step procedure composed of series quantile regressions, thereby providing applied researchers with a computationally tractable and practically feasible tool. We apply the SCFCQ method to estimate heterogeneous income elasticities over household preferences using data from the UK Family Expenditure Survey.

Date: 2026-02
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