On the Impossibility of Specification Testing of Interference Models Based on Exposure Mappings
基于暴露映射的干扰模型设定检验之不可能性
Researchers use interference models based on exposure mappings to facilitate estimation of causal effects in randomized experiments with interference. To test the veracity of such models, researchers can use specification tests that aim to detect departures from the stipulated model. However, existing tests suffer from poor power and are often unable to detect important model violations. The main result in this paper is to show that the specification testing problem for…