Local Asymptotic Normality of Families of Distributions

Abstract

In a number of interesting papers of Hájek, LeCam, and other authors, it was proved that many important properties of statistical estimators follow from the asymptotic normality of the logarithm of the likelihood ratio for neighborhood hypotheses (for values of parameters close to each other) regardless of the relation between the observations which produced the given likelihood function. This chapter is devoted to an investigation of the conditions under which this property is valid for various models and to corollaries of this property.