• Startseite
  • Forschung
  • Anwendungen
    • Überblick

    • Kitaplatzvergabe
    • Schulplatzvergabe

    • Lebensmittelspenden
    • Umweltförderung
  • Medien
  • Kontakt

Application

School places

Which procedures best meet preferences, what parents actually do and what early tracking does.

under 3%

instead of 15% placed only at their fourth-ranked school or lower (Budapest)

5 km

gain from joint allocation, measured as a school that much closer

540

parents and students in the school choice experiment

Findings Materials Publications

Starting point

The problem

At the transition to secondary school, popular schools are often oversubscribed. How places are then allocated determines how many families get their preferred school, whether strategic behaviour pays off and who ends up disadvantaged.

Approach

What the research contributes

A comparison of allocation mechanisms using administrative data and experiments, and an analysis of what tracking into school types means for achievement and opportunity.

What the research shows

Mechanisms

Which mechanism best meets preferences?

The widely used Deferred Acceptance mechanism makes truthful reporting the best strategy, but in Budapest places almost one child in seven at their fourth-ranked school or lower. A mechanism that explicitly minimises poor placements reduces this share to under three per cent.

Games and Economic Behavior, 2023

Experiment

What parents actually do

In an experiment with 324 parents and 216 students, all mechanisms were frequently manipulated, including the one considered strategy-proof. The advantages of the more efficient mechanism nonetheless largely persisted.

Working paper, 2026

Districts

Joint allocation across districts

When school districts merge their allocation, everyone gains on average, especially families from small districts with sought-after schools. In Hungary the gain is equivalent to a school five kilometres closer.

Games and Economic Behavior, 2024

Tracking

Early tracking

Attending an academic-track school improves achievement and university aspirations, at least as much for disadvantaged children as for others. These children are less likely to get there; early and rigid tracking can therefore amplify inequality.

Working papers, 2024 and 2025

Materials

Policy brief

Rethinking Tracking

Lessons from Hungary for German education reform.

ZEW, 2025

Practitioner article

Early tracking and its consequences

Lessons from Hungary for Germany’s three-tier school system.

Wirtschaftsdienst, 2025, German

Report

School admission rules, segregation and inequality

The Implication of School Admission Rules for Segregation and Educational Inequality.

ZEW research report, 2020

Podcast

How are school places allocated?

On early tracking, in conversation with secondary school pupils from Mannheim.

ZEW podcast, September 2026, German

In the press

Coverage is in German.

  • MDR Wissen, 02/2026Frühe Gymnasium-Wahl in Deutschland könnte schädlich sein
  • Süddeutsche Zeitung, 03/2026Article on early tracking
  • Frankfurter Rundschau, 10/2023Der Kampf um den Platz an der Wunschschule
More press coverage (1)
  • Table.Media, 10/2023Modell für eine gerechtere Schulplatzvergabe

Publications

Show list
  1. 10
    Experimental School Choice with Parents
    arXiv 2603.24615 (2026) · M. Freer, T. Klein, J. Ortega
  2. 9
    Frühe Leistungsdifferenzierung und ihre Konsequenzen: Lehren aus Ungarn für das dreigliedrige Schulsystem
    Wirtschaftsdienst 09/2025 (2025) · S. McNamara, T. Klein
  3. 8
    Rethinking Tracking: Lessons from Hungary for German Education Reform
    ZEW Policy Brief 10/2025 (2025) · S. McNamara, T. Klein
  4. 7
    Sorting, Status, and Shadow Education: How Track Placement Shapes Parental Investment
    ZEW Discussion Paper 25-023 (2025) · T. Klein, S. McNamara
  5. 6
    Access, Achievements, and Aspirations: The Impacts of School Tracking on Student Outcomes
    ZEW Discussion Paper 24-076 (2024) · M. Bach, T. Klein, S. McNamara
  6. 5
    School Choice with Independent versus Consolidated Districts
    Games and Economic Behavior 147: 170–205 (2024) · T. Klein, R. Aue, J. Ortega
  7. 4
    The Cost of Strategy-Proofness in School Choice
    Games and Economic Behavior 141: 515–528 (2023) · J. Ortega, T. Klein
  8. 3
    Improving Efficiency and Equality in School Choice
    ZEW Discussion Paper 22-046 (2022) · J. Ortega, T. Klein
  9. 2
    The Implication of School Admission Rules for Segregation and Educational Inequality
    ZEW Research Report (2020) · R. Aue et al.
  10. 1
    What Happens when Separate and Unequal School Districts Merge?
    ZEW Discussion Paper 20-032 (2020) · R. Aue, T. Klein, J. Ortega

School place allocation in your region?

I am happy to discuss what the research means for your admission rules.

Send an email
Kontakt [email protected]
Prof. Dr. Thilo Klein
Hochschule Pforzheim
Fakultät für Wirtschaft und Recht
Tiefenbronner Straße 65
75175 Pforzheim
© 2026 Thilo Klein · Impressum und Datenschutz Nach oben ↑
Contact [email protected]
Prof. Dr. Thilo Klein
Pforzheim University
Faculty of Business and Law
Tiefenbronner Straße 65
75175 Pforzheim, Germany
© 2026 Thilo Klein · Legal notice and privacy Back to top ↑