The American Economic Association's registry for randomized controlled trials
Select the trial sections you'd like to search within...
142 Trials Found
Henan Province
Zhejiang Province
Central Province
Sichuan
Southern Province
Buenos Aires Province
Shandong Province
Province of Kossi
Beijing, Jilin, Hebei, Ningxia, Sichuan, Zhejiang, Jiangsu, Anhui, and Yunnan.