Efficiency

Chris Cook

Your birthday matters: children who are older when they start school as 4 year-olds outperform their peers. This is not a small effect, nor does it peter out as they get older. We can spot it easily at the national level among 16 year-olds. Read more

Chris Cook

The social mobility problem is not that there is a small number of weak schools serving a lot of poor kids. It is that poor children do badly in the majority of England’s schools. Read more