Dr Martina Kirchberger and Professor Carol Newman co-wrote the article with Mathias Allemand, Sveta Milusheva, Brent Roberts and Vincent Thorne.
The results were striking:
- Job retention increased: nine months later, trained workers were about 10 percentage points more likely to still be employed.
- Earnings increased: they earned roughly CFA 17,500 (~US$32) more per month, around a 23% increase over the control group's average earnings.
- Hourly pay increased, rather than workers simply working more hours.
- Supervisors gave trained workers higher performance ratings, suggesting employers noticed and rewarded the behaviours.