How to distinguish the meaning of these words?

households
economically active persons
income recipients
individual household members

in the first sentence!


There are four types of units for which income data are generally collected: households, economically active persons, income recipients, and individual household members. each of these units is dealing with particular aspects of the problem, representing different stages in the process by which people earn their income by their productive activity and spend it on their consumption. the unit most frequently used is the household, and the next most common unit is the income recipient.