Posted by ks55 > 2014-11-14 10:09 | Report Abuse

Sources of income inequality easily obtained from income tax department (HDN) and EPF.

Different categories needed to make meaningful comparison:-
1. Wage earner
2. Self employed like hawker
3. Businessman

Household income carry less accurate picture compare with individual income. Reasons:-
1. Single (male/female) staying separately from parents
2. Young couples both are working
3. Working children staying with parents

You see, one person working it is definitely earn less than two working.
Moreover, household income changes when new family member start working or retire.
Today the household income could be 200k.
If one child start working tomorrow and adds 50k, Household income then is 250k.
If one retire, household income becomes 100k.