"Singapore women earn 6% less than men, but gap has narrowed: Study", 9 January 2020

A woman may be doing the same job as her male colleague, in the same industry, at the same age and education level, but for lower pay.

This adjusted gender pay gap was 6 per cent in 2018....

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Overall, the median monthly salary of a woman in full-time work was 16.3 per cent less than a man in full-time work....

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“This suggests that despite women upgrading their occupations and improving their labour market attachment, gender differences in occupational wages had become larger due to occupation income growth favouring men,” the researchers said in the report.

They found that occupation played the biggest role, accounting for 43 per cent of the pay gap in 2018. [...]

A possible reason for this could be that there is more occupational segregation today than in 2002, with men becoming increasingly over-represented in higher-paying occupations while women are taking up a larger share of roles in lower-paying occupations, the report said.

Alternatively, the degree of occupational segregation could be similar, but people in higher-paying occupations could have seen greater pay increases than people in lower-paying occupations.