Linear Estimation of Parameters of the Cauchy Distribution Based on Sample Quantiles
基于样本分位数的柯西分布参数线性估计AI 解读 ↓
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AI 根据所提供的论文材料归类:样本分位数用于一般柯西参数估计,摘要未涉及经济变量的分位数回归或分布效应。
基于样本分位数的柯西分布参数线性估计AI 解读 ↓
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Asymptotically best linear unbiased estimates (ABLUE) of the location and scale parameters (when both are unknown) of the Cauchy distribution, based on k order statistics selected from a large sample, are considered. It is shown that the joint asymptotic relative efficiency (JARE) of the two estimates is maximized when the sample quantiles are equally spaced, and expressions are derived for the coefficients used in these estimates. In estimating the scale parameter using a reasonably large number of quantiles, it is found that not much weight is attached to the extreme observations or those close to the median.
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异质性高维分位数回归的全局推断
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This paper develops a smoothed generalized method of moments (GMM) framework for panel quantile models with individual-specific fixed-effects and endogenous regressors. By smoothing the indicator in the quantile moment conditions and profiling out the individual effects through smoothed individual quantile restrictions, the proposed estimator can be implemented using standard GMM algorithms. We establish consistency, asymptotic normality, and feasible inference under weak…
非精确匹配何时能在无需调整的情况下保证平衡与有效推断?
One-to-one matching without replacement is a classical approach to constructing comparable treated and control samples in the design of observational studies. It pairs each treated unit with a distinct control while minimizing a covariate distance objective. With continuous covariates, the matched pairs generally remain inexact, which contributes to bias in downstream analysis. Its key theoretical properties, such as the resulting imbalance between matched pairs and when it…