In the 1970s, Camilo Dagum embarked on a quest for a statistical distribution closely fit- ting empirical income and wealth distributions.It took more than a decade until Dagum's proposal began to appear in the English-language economic and econometric literature.Experimenting with a shifted log-logistic distribution (Dagum 1975), a generalization of a distribution previously considered by Fisk (1961), he quickly realized that a further param- eter was needed.This led to the Dagum type I distribution, a three-parameter distribution, and two four-parameter generalizations (Dagum 1977, 1980).The first paper in a major econometrics journal