With SACMEQ and PASEC there are now two large data bases available on student achievement, socio-economic background and school and teacher characteristics in both anglophone and francophone Sub-Saharan Africa. A joint analysis of PASEC and SACMEQ in a common education production function...

Evidence is mounting that the United States is losing its edge as a world leader when it comes to educating its citizens. It now ranks 13th in college graduation rates. In a recent 24-country Survey of Adult Skills, the U.S. ranked 16th in literary proficiency and 21st in numeracy proficiency....

Introduction: Common approaches in cost-effectiveness analyses do not adjust for confounders. In nonrandomized studies this can result in biased results. Parametric models such as regression models are commonly applied to adjust for confounding, but there are several issues which need to be...

The cost-effectiveness of plastic recycling is compared to energy recovery from plastic incineration in a waste-to-energy plant using data for the Netherlands. Both options have specific benefits and costs. The benefits of recycling are the avoidance of both CO2 that otherwise would be emitted...