Cash transfer programmes are a popular social protection tool in developing countries that aim, among other things, to improve education outcomes in developing countries. The debate over whether these programmes should include conditions has been at the forefront of recent policy discussions....

Understanding the efficacy of development projects requires not only a plausible counterfactual but also an appropriate match between the shape of impact trajectory over time and the deployment of a corresponding array of research tools capable of empirically discerning such a trajectory. At...