世界发展银行-Saving-the-American-Dream--Education-Policies-in-Spatial-General-Equilibrium_67页_644kb

Summary of "Saving the American Dream?" - Education Policies in Spatial General Equilibrium

Core Content

This paper investigates the long-term effects of education policies, specifically school funding equalization, on children's education outcomes and social mobility in the United States. It introduces a spatial equilibrium model that integrates local labor market access and local education quality to analyze how these factors interact with families' education and residential choices.

Main Points

1. Neighborhood Effects on Education and Economic Outcomes

• Childhood neighborhoods significantly influence children's future wages and educational attainment.
• Two key channels are identified: local labor market access and local education quality.
• These channels interact and respond to policy changes, making spatial equilibrium an essential framework for understanding long-term impacts.

2. Spatial Equilibrium Model

• The model is designed to capture the dynamic interaction between local labor markets, local education environments, and household decisions.
• Individuals live for two periods: childhood and adulthood.
• Education is a binary choice (high or low skill), and residential choices depend on the child opportunity value of a location, which combines education quality and labor market access.
• The model is dynastic, with each generation representing a time period, and it incorporates forward-looking behavior.

3. Key Components of the Model

• Local Labor Markets: Firms in each location produce a homogeneous good with location-specific technology. Wages and skill premia are determined by labor market clearing.
• Local Education Quality: Defined as a function of endogenous school funding and exogenous factors. It affects the cost of becoming high-skill.
• Residential and Education Choices: These are influenced by taste shocks, moving costs, and child opportunity values. Parents choose locations based on the expected utility for their children.

4. Policy Evaluation: School Funding Equalization

• The reform increases school funding for low-skill families and reduces it for high-skill families.
• Direct effects of the reform are significant for low-skill families: the probability of college attendance increases by 3.15 percentage points.
• However, general equilibrium effects reduce this impact to +0.6 percentage points due to:
  • Declining average returns to education.
  • Low-skill families moving to areas with lower education quality.
• For high-skill families, the reform slightly decreases the probability of college attendance (-0.5 p.p.), but the effect is smaller in equilibrium (-0.3 p.p.) as they move to areas with better education quality, offsetting the decline in returns.

5. Geographic Variation in Education Outcomes

• There is substantial variation in college attendance rates across US commuting zones (CZs).
• Low-income families have college attendance shares ranging from 0.35 to 0.8, while high-income families range from 0.7 to almost 1.
• This variation is largely causal, as shown by Chetty and Hendren (2018b), who use administrative data to estimate the effects of childhood location on education outcomes.

6. School Funding and Its Impact

• School funding varies widely across CZs, with per-student funding ranging from $7,000 to $25,000.
• The composition of funding (federal, state, and local) also differs significantly.
• Jackson et al. (2016) and Biasi (2019) highlight the large causal effects of school funding on children's education outcomes.

7. Model Estimation and Methodology

• The model is estimated using census data and a two-step estimator.
• The first step estimates the mean utility of each education and family type in each neighborhood.
• The second step identifies preferences for regional characteristics using instruments and residential choices of non-parents.
• The model incorporates peer effects and endogenous school funding as determinants of local education quality.

Key Findings

• School funding equalization has mixed effects on education outcomes and social mobility:
  • Low-skill families benefit more from the reform in the short term, but the long-term equilibrium effects are weaker due to shifts in residential and educational choices.
  • High-skill families experience a slight negative effect, but this is offset by moving to areas with better education quality.
• The reform increases geographic variation in education outcomes as it reduces resources in lower-funded areas, further deteriorating their educational environment.
• Local wage adjustments mitigate the direct negative effects of the reform by increasing skill premia in response to reduced education quality.
• Rent subsidies are also evaluated as an alternative policy to improve equality of opportunity, though the paper focuses on school funding reforms.

Conclusion

The paper underscores the importance of spatial interactions in evaluating education policies. It highlights that local labor markets, education quality, and household decisions are deeply interconnected, and any policy affecting one can have complex and indirect effects on others. The findings suggest that equalizing school funding may not achieve the desired long-term improvements in social mobility due to these equilibrium effects.