模拟得分法在有限因变量模型估计中的应用

The Method of Simulated Scores for the Estimation of LDV Models

Econometrica · 1998
被引 310
人大 A+FT50ABS 4*

中文导读

提出模拟得分法(MSS)来估计具有灵活不可观测相关结构的有限因变量模型,并给出两种连续模拟器,证明了估计量的一致性和渐近正态性。

Abstract

The method of simulated scores (MSS) is presented for estimating limited dependent variables models (LDV) with flexible correlation structure in the unobservables. We propose simulators that are continuous in the unknown parameter vectors, and hence standard optimization methods can be used to compute the MSS estimators that employ these simulators. The first continuous method relies on a recursive conditioning of the multivariate normal density through a Cholesky triangularization of its variance-covariance matrix. The second method combines results about the conditionals of the multivariate normal distribution with Gibbs resampling techniques. We establish consistency and asymptotic normality of the MSS estimators and derive suitable rates at which the number of simulations must rise if biased simulators are used.

模拟得分法受限因变量模型Cholesky三角分解Gibbs重抽样