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Estimating Dynamic Treatment Effects from Project STAR (Working Paper 36)
This paper considers the analysis of data from randomized trials which offer a sequence of interventions and suffer from a variety of problems in implementation. In experiments that provide treatment in multiple periods ...
Do Peers Affect Student Achievement in China's Secondary Schools (Working Paper 35)
Peer effects have figured prominently in debates on school vouchers, desegregation, ability tracking and anti-poverty programs. Compelling evidence of their existence remains scarce for plaguing endogeneity issues such as ...