Evidence from Nigeria suggests that TV shows can promote safer sexual practices mainly through learning, rather than social conformity

A novel hygiene education programme uses microscopes to improve hygiene in Pakistan, but traditional medical beliefs may hamper its effectiveness

While urbanisation and socioeconomic factors played a role, the global decline in fertility is largely due to successful population control programmes

Health insurance for families in Nicaragua had a positive impact on parents and their insured younger children, but not on uninsured older children

A skills development programme in Pakistan surpassed its targets largely through monitoring, experimentation, and course-correcting impact evaluations

Evidence from rural healthcare centres in Nigeria suggests that managerial supervision improves health outcomes, but that it must be ongoing

Lottery incentives targeting risk lovers led to a 20% reduction in HIV incidence

Female empowerment is associated with economic development, but cash transfers targeted at women may have unintended consequences

Ultrasound technology has increased sex selection in India, but has also narrowed gender gaps in fertility and under-five mortality