# Thread: Asymptotic Variance

1. ## Asymptotic Variance

What is the asymptotic variance of an estimator? There seems to be several definitions on the web but I know the one I'm after includes the expectation of the second derivative of the log-likelihood.

2. ## Re: Asymptotic Variance

Asymptotic variance of an estimator is Cramer Rao Lower Bound (CRLB) Cramér