🔎 What This Study Asks

Education is one of the strongest individual predictors of political participation, but the strength of that relationship varies across countries. Drawing on policy feedback and political socialization theories, the paper argues that education policies in adolescence—specifically policies that de‑stratify secondary schooling by promoting more comprehensive models—create lasting feedback effects that shape adult patterns of participation and can reduce political inequality.

📚 How German States and Decades Are Compared

The analysis exploits variation in education policy across Germany’s subnational units (Länder) and over time. Land-level measures of secondary-school stratification and reforms toward comprehensive schooling are combined with individual-level measures of political behavior to trace long-run policy effects originating in adolescence.

Key data and measures:

• Land-level indicators of de-stratifying (comprehensive) secondary education across Länder and years
• Individual-level outcomes: turnout, other forms of political participation, political interest, and political efficacy
• Research design leverages subnational and temporal variation to identify durable policy feedback from schooling into adulthood

🧭 Key Findings

• Moves toward de-stratified (comprehensive) secondary education are associated with reductions in educational inequality across several political outcomes.
• Reductions appear for multiple forms of political participation (beyond turnout), for political interest, and for political efficacy.
• No clear evidence that de-stratifying secondary education reduces educational gaps in turnout.
• The pattern is consistent with adolescence-focused policy feedback and political socialization producing persistent adult differences in engagement.

⚖️ Why It Matters

This evidence suggests that cross-national variation in the education–participation link need not be explained only by political institutions like electoral systems. Education policy—especially decisions about tracking and comprehensiveness at the secondary level—can be a powerful subnational lever to shape long-term political inequality and merits attention from scholars and policymakers interested in widening democratic engagement.