- Sandra S.Lv 76 years agoFavorite Answer
I think you'll find The American Thoroughbred Review interesting..
(The AEI measures the earning power of a sire's progeny by comparing the average earnings of his runners with all other runners of the same age that raced in the same country during a given year. AEI is most often cited in relation to the progeny performance of a stallion. Using AEI in reference to an individual runner or to compare progeny by mare or female family, or by damsire/ the sire (father) of a dam (mother); equivalent to a maternal grandfather).