These takeovers have little to do with relative efficiency or quality of management.

With manageable expense, she has tweaked my sluggish system back to relative efficiency.

For many practical purposes, 2 or 3 imputations capture most of the relative efficiency that could be captured with a larger number of imputations.

The card has since become valuable, for both its age and relative efficiency compared to similar cards.

Relative efficiency of two such estimators can thus be interpreted as the relative sample size of one required to achieve the certainty of the other.