This paper assembles a panel data set that measures cognitive achievement for 128 countries around the world from 1965 to 2010 in 5-year intervals. The data set is constructed from international achievement tests, such as the Programme for International Student Assessment and the Trends in International Mathematics and Science Study, which have become increasingly available since the late 1990s. These international assessments are linked to regional ones, such as the South and Eastern African Consortium for Monitoring of Educational Quality, the Programme d’Analyse des Systemes Educatifs de la Confemen, and the Laboratorio Latinoamericano de Evaluacion de la Calidad de la Educacion, in order to produce one of the first globally comparable data sets on student achievement. In particular, the data set is one of the first to include achievement in developing countries, including 29 African countries and 19 Latin American countries. The paper also provides a first attempt at using the data set to identify causal factors that boost achievement. The results show that key drivers of global achievement are civil rights and economic freedom across all countries, and democracy and economic freedom in a subset of African and Latin American countries.
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