世界银行-模拟COVID-19对学校和教育的潜在影响（英文）-2020.6-57页_3mb

Summary of "Simulating the Potential Impacts of COVID-19 School Closures on Schooling and Learning Outcomes: A Set of Global Estimates"

Core Content

This paper explores the potential long-term impacts of school closures due to the COVID-19 pandemic on schooling attainment and learning outcomes globally. It presents simulations based on three scenarios: optimistic, intermediate, and pessimistic, which reflect different lengths of school closure (3, 5, and 7 months) and levels of mitigation effectiveness (e.g., remote learning). The analysis uses data from 157 countries to estimate the learning-adjusted years of schooling (LAYS) and the economic consequences of these disruptions.

Main Findings

1. Impact on Schooling and Learning

• Global Learning Loss: School closures could result in a loss of 0.3 to 0.9 years of schooling adjusted for quality, reducing the effective years of basic schooling from 7.9 years to between 7.0 and 7.6 years.
• Learning Poverty: Before the pandemic, 53% of children in low- and middle-income countries were already in learning poverty, unable to read and understand a simple text by age 10. The pandemic may exacerbate this crisis, potentially halting progress toward the SDG4 goal of halving the percentage of learning poor by 2030.
• Dropout Rates: An estimated 7 million students from primary to secondary education may drop out due to the income shock caused by the pandemic alone.

2. Economic Consequences

• Earnings Loss: Without policy interventions, students could face annual earnings reductions of $355,872 to $1,408, with lifetime earnings losses estimated at $6,472 to $25,680 in present value.
• Global Economic Cost: In the intermediate scenario, the learning loss could result in a $10 trillion loss in lifecycle earnings, equivalent to 16% of government investments in basic education for this cohort.

3. Learning Distribution and Inequality

• Learning Gaps: In the intermediate scenario, the share of lower secondary students below the minimum proficiency threshold could increase by 25% (from 40% to 50%).
• Vulnerable Groups: Girls, ethnic minorities, and persons with disabilities are likely to be more adversely affected due to exacerbated exclusion and inequality.

4. Mitigation Strategies

• Remote Learning: While remote learning is a key mitigation strategy, its effectiveness varies widely across countries. Some countries have implemented emergency response teaching using various modalities (radio, TV, mobile phones, internet, etc.).
• Technology and Learning: Digital technology can provide moderate learning gains, but it is not a substitute for traditional teaching. The effectiveness of remote learning depends on alignment with learning goals and support systems for students, teachers, and parents.

Key Scenarios

Policy Recommendations

• Swift Policy Responses: Governments must implement swift and effective policy responses to offset learning losses and accelerate recovery.
• Equitable and Resilient Systems: Building more equitable and resilient post-COVID education systems is essential to ensure continuous learning both in schools and at home.
• Remote Learning Support: Effective remote learning strategies using multiple education technology solutions should be prioritized, with support for students, teachers, and parents.
• Safe Reopening: Schools should be reopened safely, in line with each country’s health response.
• Monitoring and Data Use: The simulated effects should be used to inform mitigation, recovery, and "building back better" strategies.

Methodology

• The paper uses two global datasets: the World Bank’s Learning Adjusted Years of Schooling (LAYS) and the OECD’s PISA.
• It combines data on school productivity, duration of school closures, reach of remote learning, and effectiveness of mitigation strategies.
• Economic projections are used to simulate the impact of income shocks on schooling and future earnings.
• The analysis accounts for welfare quintiles, income groups, and different learning modalities.

Conclusion

The paper emphasizes that school closures due to COVID-19 have created a perfect storm of educational and economic challenges. Without effective mitigation and recovery strategies, the learning crisis will worsen, and global progress toward SDG4 will be severely impacted. The findings highlight the urgent need for policy action to ensure learning continuity, reduce inequality, and build resilient education systems.

Key Information

• Total students affected: Over 1.6 billion at the peak of the pandemic.
• Learning Poverty: 53% of children in low- and middle-income countries were already in learning poverty.
• Income Shock Impact: 7 million students may drop out due to income shocks.
• Earnings Loss: $355,872 to $1,408 in annual earnings and $6,472 to $25,680 in lifetime earnings.
• Global Economic Cost: $10 trillion in lifecycle earnings could be lost in the intermediate scenario.
• Inequality: Girls, ethnic minorities, and persons with disabilities are more vulnerable to learning loss and exclusion.
• Policy Action Needed: Swift and effective policy responses are necessary to prevent learning losses from becoming permanent and to build better education systems.