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When Should Pre-trends Be Parallel?

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Bibliographic Details
Title: When Should Pre-trends Be Parallel?
Authors: GHANEM, DALIA1 dghanem@ucdavis.edu, SANT'ANNA, PEDRO H. C.2 pedro.santanna@emory.edu, WÜTHRICH, KASPAR3 kasparwu@umich.edu
Source: AEA Papers & Proceedings. May2026, Vol. 116, p64-69. 6p.
Database: Business Source Ultimate
Description
ISSN:25740768
DOI:10.1257/pandp.20261109