Sieve M inference on irregular parameters
Sieve M inference on irregular parameters
复制标题
不规则参数的 Sieve M 推断
DOI:
10.1016/j.jeconom.2014.04.009
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发表时间:
2014
影响因子:
6.3
通讯作者:
Z. Liao
中科院分区:
文献类型:
--
作者:
Xiaohong Chen;Z. Liao
This paper presents sieve inferences on possibly irregular (ie, slower than root-n estimable) functionals of semi-nonparametric models with iid data. We provide a simple consistent variance estimator of the plug-in sieve M estimator of a possibly irregular functional, and the asymptotic standard normality of the sieve t statistic. We show that, for hypothesis testing of irregular functionals, the sieve likelihood ratio statistic is asymptotically Chi-square distributed. These results are useful in inference on structural parameters that may have singular semiparametric efficiency bounds. A simulation study and an empirical application of Heckman and Singer (1984) duration model are presented.