Bernstein-smoothed estimation and bootstrap inference for the lower-tail Spearman's rho curve
下尾Spearman相关曲线的Bernstein平滑估计与自助推断
This paper studies a Bernstein-smoothed plug-in estimator for the lower-tail Spearman's rho curve, a rank-based measure of local concordance defined through a normalized copula integral over the lower-left square $[0,p]^2$. The estimator applies the lower-tail Spearman functional to the empirical Bernstein copula and introduces a degree parameter that controls finite-sample regularization. The contribution is target-specific estimation and inference for the lower-tail…