Does the quality of learning outcomes fall when education expands to include more disadvantaged students?
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Globally, enrolment in secondary education has expanded dramatically over the past decades. This expansion is also reflected in PISA data, particularly for low- and middle-income countries. Between 2003 and 2015, Indonesia added more than 1.1 million students, Turkey and Brazil more than 400 000 students, and Mexico more than 300 000 students, to...
