applications in settings of randomized experiments with noncompliance. I discuss the assumptions underlying instrumental variables …

Abstract Most scientists consider randomized experiments to be the best method available to establish causality. On the … Internet, during the past twenty-five years, randomized experiments have become common, often referred to as A/B testing. For …

highlight that data quality and modeling assumptions are crucial even (or especially) for randomized experiments. …

In this chapter, we present econometric and statistical methods for analyzing randomized experiments. For basic … from a large population. We show how this perspective relates to regression analyses for randomized experiments. We discuss … the analyses of stratified, paired, and clustered randomized experiments, and we stress the general efficiency gains from …