1 “...OECD Statistics Working Papers...”

2 “... population. In addition, for non probability samples there is no general statistical theory that justifies...”

3 “...One of the main contributions of statistical tools - and in particular of survey methods...”

4 “... across countries in large-scale surveys are developed within the framework of confirmatory factor...”

5 “... of the population harms growth. The paper also evaluates the "human capital accumulation theory" finding evidence...”