Student performance in Sub-Saharan Africa is tragically low. We study the importance of teacher subject knowledge for …. After measurement-error correction, a one-standard-deviation increase in teacher subject knowledge raises student … teacher sorting. Furthermore, teacher knowledge and school resources appear to be complements in student learning …

implement them. Both of these knowledge-based elements of innovation can be attained through moderate labor force turnover in …Keeping up with rapid technological change necessitates constant innovation. Successful innovation depends on both … incumbent workers' knowledge, based on experience, and knowledge about the latest technologies, along with the skills needed to …