A study by jobs website Glassdoor has found that Singapore women earn about 13 per cent less than men, and some of that pay gap may be down to persistent gender bias. In a sample of more than 5,000 salaries reported by Singaporean employees, the wage gap was close to 13 per cent when looking at the median base pay, it fell to 5.2 per cent when workers’ ages, job titles, employers and locations, among other factors, were considered. Dr Noeleen Heyzer, a social scientist and a distinguished visiting fellow at RSIS, said the gap of 5 per cent, reflecting income forgone, could seem small, but compounds over time over the course of one’s working career.