As any empirical method used for causal analysis, social experiments are prone to attrition which may flaw the validity … reveals under which forms of attrition - in terms of its relation to observable and/or unobservable factors - experiments do … of the results. This paper considers the problem of partially missing outcomes in experiments. Firstly, it systematically …

outcomes are only partially observed due to sample selection or outcome attrition. We assume sequential conditional … missing at random or instrumental variable assumptions on the outcome attrition process. Under these conditions, we derive …

outcomes are only partially observed due to sample selection or outcome attrition. We assume sequential conditional … missing at random or instrumental variable assumptions on the outcome attrition process. Under these conditions, we derive …

independent sample selection or attrition.The estimator is applied to the estimation of the firm size elasticity of product and … process R&D expenditures using a panel of German manufacturing firms, which is affected by attrition and selection into R …

We conduct two large-scale randomised experiments on the British Household Panel Survey (BHPS) to study methods of … reducing panel attrition. The first experiment compares different strategies for tracing and maintaining contact with sample …