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Education Outcomes

topic v1.0.0 2026-04-05 Agent-extracted

How education spending, access, and quality affect learning outcomes, human capital formation, and economic returns across countries.

Download .pax.tar.gz 3.2 KB

Domain: Education Systems and Learning Outcomes

How education spending, access, and quality affect learning outcomes, human capital formation, and economic returns

Period: 1990-present Population: Countries worldwide Level: macro

Overview

6
Constructs
8
Findings
3
Engines

Constructs

mean_years_schooling Mean Years of Schooling

Average years of formal education completed by adults aged 25+. Primary macro proxy for human capital stock.

education_expenditure_gdp_pct Education Expenditure as Percent of GDP

Total public expenditure on education as a percentage of gross domestic product, capturing government prioritization of education in national budgets

adult_literacy_rate Adult Literacy Rate

Percentage of population aged 15 and above who can read and write a short simple statement about their everyday life, measuring basic educational attainment

learning_adjusted_years_schooling Learning-Adjusted Years of Schooling

World Bank measure that combines quantity of schooling with quality of learning, discounting years of schooling by actual learning achievement on harmonized test scores

primary_enrollment_rate Primary Enrollment Rate

Gross enrollment ratio in primary education, calculated as total enrollment in primary education regardless of age divided by the population of official primary education age

pupil_teacher_ratio Pupil-Teacher Ratio

Average number of pupils per teacher at a given level of education, serving as a proxy for class size and resource allocation in the education system

Findings

One SD increase in cognitive skills test scores associated with ~2 pp higher annual GDP growth. Robust to IV identification.

Direction: positive Confidence: strong Method: OLS and IV cross-country

Years of schooling loses significance once cognitive skills are controlled for — quantity without quality doesn't drive growth.

Direction: null Confidence: moderate Method: OLS with joint inclusion

Global average private return to one year of schooling is ~9% per year across 1,120 estimates in 139 countries.

Direction: positive Confidence: strong Method: Meta-analysis of Mincerian regressions

Cognitive skills (test scores) are far more important for economic growth than years of schooling, with beta approximately 0.6 on growth versus beta approximately 0.1 for years of schooling.

Direction: positive Confidence: strong Effect: β≈0.6 for test scores vs β≈0.1 for years of schooling Method: Cross-country OLS and IV regressions

School quality (proxied by test scores) explains most of cross-country variation in growth rates, not school quantity. A one standard deviation increase in test scores is associated with approximately 2 percentage points higher annual GDP growth.

Direction: positive Confidence: strong Effect: 1 SD increase in test scores → 2% higher annual GDP growth Method: Cross-country panel regression with IV

Cognitive skills measured by international test scores are more strongly predictive of economic growth than years of schooling alone, with one standard deviation in test scores associated with 2 percentage points higher annual GDP growth

Direction: positive Confidence: strong Method: ols_regression

Global average private returns to an additional year of schooling are approximately 9 percent per year, with returns highest in Sub-Saharan Africa and for primary education

Direction: positive Confidence: strong Method: ols_regression

Pupil-teacher ratio is negatively associated with learning outcomes in developing countries, though the effect size is smaller than often assumed and depends on teacher quality

Direction: negative Confidence: moderate Method: random_forest

Engines

ols_regression correlation_matrix random_forest

Sources

Hanushek, Eric A.; Woessmann, Ludger (2012). Do Better Schools Lead to More Growth? Cognitive Skills, Economic Outcomes, and Causation
Psacharopoulos, George; Patrinos, Harry Anthony (2018). Returns to Investment in Education: A Decennial Review of the Global Literature
World Bank (2020). Human Capital Index 2020 Update: Human Capital in the Time of COVID-19
Glewwe, P., Muralidharan, K. (2016). Improving Education Outcomes in Developing Countries: Evidence, Knowledge Gaps, and Policy Implications

Tags

topiceducation-outcomes

Details

Domain: Education Systems and Learning Outcomes

How education spending, access, and quality affect learning outcomes, human capital formation, and economic returns

Temporal scope: 1990-present | Population: Countries worldwide

Key Findings

  • One SD increase in cognitive skills test scores associated with ~2 pp higher annual GDP growth. Robust to IV identification. (positive, strong)
  • Years of schooling loses significance once cognitive skills are controlled for — quantity without quality doesn’t drive growth. (null, moderate)
  • Global average private return to one year of schooling is ~9% per year across 1,120 estimates in 139 countries. (positive, strong)
  • Cognitive skills (test scores) are far more important for economic growth than years of schooling, with beta approximately 0.6 on growth versus beta approximately 0.1 for years of schooling. (positive, strong)
  • School quality (proxied by test scores) explains most of cross-country variation in growth rates, not school quantity. A one standard deviation increase in test scores is associated with approximately 2 percentage points higher annual GDP growth. (positive, strong)
  • Cognitive skills measured by international test scores are more strongly predictive of economic growth than years of schooling alone, with one standard deviation in test scores associated with 2 percentage points higher annual GDP growth (positive, strong)
  • Global average private returns to an additional year of schooling are approximately 9 percent per year, with returns highest in Sub-Saharan Africa and for primary education (positive, strong)
  • Pupil-teacher ratio is negatively associated with learning outcomes in developing countries, though the effect size is smaller than often assumed and depends on teacher quality (negative, moderate)

Related PAX

topic Human Capital Economics
v1.0.0

Returns to education and human capital economics

Returns to education and human capital economics — how educational attainment, cognitive skills, and schooling investment shape GDP growth and economic development. Built on Mankiw, Romer & Weil (1992), Psacharopoulos & Patrinos (2018), Hanushek & Woessmann (2012), Card (1995), and Barro (2001).

4 constructs 4 engines playbooks
topic 1.5 KB

Installation

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