This study focuses on the interaction between the quantity and the quality of instruction at school. On average, across all studied countries, one hour more instruction time leads to 0.03 standard deviations higher test scores. Importantly, the effect varies according to teachers' formal...

The coronavirus crisis has caused severe economic, social and health disruptions worldwide. Children and young adults were among those who suffered most from the effects of the pandemic. Schoolchildren and students faced learning losses, and time spent on school activities dropped by about...

For school children, the Covid-19 pandemic brought school closures that challenged their learning experiences and social-distancing rules that impeded their peer interactions. Will these experiences have persistent effects on the development of children's cognitive and socio-emotional skills? We...