A natural experiment always has a control group, which is affected by the policy change, and a treatment group, which is not affected by the policy change.

The maximum likelihood estimation method produces, in general, all of the following desirable properties with the exception of

A) efficiency. B) consistency. C) normally distributed estimators in large samples. D) unbiasedness in small samples.

Historical evidence suggests that monopolization of particular industries had led to lower prices. In such cases the monopolists had reduced profit to increase welfare

Indicate whether the statement is true or false