Many international comparisons of education over the past 50 years have included some measure of students’ opportunity to learn (OTL) in their schooling. Results have typically confirmed the common sense notion that a student’s exposure in school to the assessed concepts, operationalized in...

As governments around the world struggle with doing more with less, efficiency analysis climbs to the top of the policy agenda. This paper derives efficiency measures for more than 8,600 schools in 30 countries, using PISA 2012 data and a bootstrap version of Data Envelopment Analysis as a...

Many international comparisons of education over the past 50 years have included some measure of students’ opportunity to learn (OTL) in their schooling. Results have typically confirmed the common sense notion that a student’s exposure in school to the assessed concepts, operationalized in...