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Informal employed workers (informal workers) are those who have
jobs in one of the following five groups: (i) Unpaid family workers; (ii)
Own-account workers, self-employed workers in the informal sector; (iii)
Wage worker who are not allowed to sign a labor contract or are allowed to
sign a labor contract but their compulsory social insurance premiums are not
paid by the recruitment establishment; (iv) Cooperative members who do
not pay compulsory social insurance; (v) Self-employed or wage workers in
households or agriculture, forestry and fishery households.

Workers in the agriculture, forestry and fishery households.

Informal employment rate is the ratio of the number of informal
employed persons to the total number of employed persons.

Formula:
Number of informal

Informal employment rate = employed persons × 100
(%) Total number of
employed persons

Labour productivity is the indicator reflecting the working
performance of labour, usually measured by Gross Domestic Product to a
worker on an average in the reference period, usually a calendar year.

Labour productivity = Gross Domestic Product (GDP)
(VND/employee) Average employed population

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