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There are substantial learning gaps across countries on standardised international assessments. In this paper, I use unique child-level panel data from Ethiopia, India, Peru and Vietnam with identical tests administered across these countries to children at 5, 8, 12 and 15 years of age to ask at what ages do gaps between different populations emerge, how they increase or decline over time, and what the proximate determinants of this divergence are.
There are substantial learning gaps across countries on standardised international assessments. In this paper, I use unique child-level panel data from Ethiopia, India, Peru and Vietnam with identical tests administered across these countries to children at 5, 8, 12 and 15 years of age to ask at what ages do gaps between different populations emerge, how they increase or decline over time, and what the proximate determinants of this divergence are.