Luxembourg: Ranked 13th in Smartest Countries in 2023

Luxembourg, renowned for its high educational standards and commitment to intellectual growth, ranks 13th in the world's smartest countries in 2023, boasting an impressive average IQ of 99.9.

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Understanding Luxembourg's Ranking

Genetic Factors: Contemporary research indicates that genetic predispositions are primarily responsible for the observed levels of intelligence. 1

Education: The efficacy of Luxembourg's educational system is significantly influenced by the inherent intellectual capabilities of its population, a conclusion supported by recent advancements in genetic research. 2

Economy: Luxembourg's economic strength in 2023 is characterized by a projected decrease in GDP growth, mainly due to weaker investment and lower net exports. The government has implemented measures to mitigate the impact of high energy prices and to support household purchasing power. The economic slowdown and cost of these fiscal support measures are expected to influence public finances significantly. Despite these challenges, Luxembourg's economy is forecast to recover, driven by domestic demand and private consumption.3


  1. Plomin, R., von Stumm, S. The new genetics of intelligence. Nat Rev Genet 19, 148–159 (2018).
  2. Okbay, A., Wu, Y., Wang, N. et al. Polygenic prediction of educational attainment within and between families from genome-wide association analyses in 3 million individuals. Nat Genet 54, 437–449 (2022).
  3. Autumn 2023 Economic Forecast for Luxembourg. European Commission.