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This note implements two research designs that attempt to isolate the effect of class size on achievement. A first strategy focuses on variation in class size in rural schools with fewer than 30 students, and hence only one classroom, per grade. Second, an approach similar to Angrist and Lavy's exploits regulations that allow schools with more than 30 students in a given grade to obtain an additional teacher. Both designs suggest class size negatively affects test scores.
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Stored only when both papers are in the corpus — 184 citations exist upstream.
Papers that cite the same references — the relational fallback while embeddings are still backfilling.
Imported from OpenAlex (CC0) — nothing here is generated.