Answer:
(i)
For comparing countries, their income is considered to be one of the most
important attributes.
(ii) Countries with higher income are more developed
than others with less income.
(iii) This is based on the understanding
that more income means more of all the things that human beings need. Whatever
people like, and should have, they will be able to get with greater income.
So, greater income itself is considered to be
one important goal.
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