Bold, Tessa; Kimenyi, Mwangi; Mwabu, Germano; Ng'ang'a, … - Centre for the Study of African Economies (CSAE), … - 2013
The recent wave of randomized trials in development economics has provoked criticisms regarding external validity. We investigate two concerns – heterogeneity across beneficiaries and implementers – in a randomized trial of contract teachers in Kenyan schools. The intervention, previously...