=+32. Student skills surplus. According to the OECD’s How’s life? 2013 study, the dimension of education and skills consists of three different indicators: ‘Educational attainment’,

‘Student skills’, and ‘Years in education’. A linear model to predict Student skills from Years in education was fit to the 34 OECD countries, Russia, and Brazil. The model was:

Student skills = 213.645 + 16.028 Years in education