We use a new sample of UK female identical twins to estimate private economic returns to education. We report findings in three areas. First, we use identical twins, to control for family effects and genetic ability bias, and the education reported by the other twin to control for schooling...

Many productivity studies, if they cover the service sector, commonly enter a caveat that the data are uncertain or just look at manufacturing. This paper attempts to clarify what UK market-service-sector data are available, whether they should be treated as inaccurate, and what conceptual...