Progressive gender norms can be transmitted from teachers to students and improve classroom achievement through better cooperation among the sexes

The ground-breaking conditional cash transfer programme shows long-term benefits to education, income, geographic mobility and family formation

The use of double-fortified salt in school lunches reduced anaemia by 22–27% among schoolchildren aged 7 and 8 in Bihar, India

A mini-MBA programme for high-school students led to significant gains in profits, business capital investments, new businesses, and job creation

Public recognition rewards for well-performing public-sector teachers are less effective than in-kind rewards at improving student learning

Ageing pipe systems and the absence of complementary sanitation investments compromise the health benefits of water disinfection

Providing vouchers for rice and eggs allowed for better targeting, increased protein consumption, and was cheaper to administer than in-kind benefits

Mothers who received modest cash inputs along with information on practices to reduce malnutrition were more likely to adopt those practices

The offer of an appointment more than doubled the likelihood of men getting an HIV test, and was most effective for men wanting a commitment device