Homogeneity in the Instrument-exposure Association and Point Estimation Using Binary Instrumental Variables
Homogeneity in the Instrument-exposure Association and Point Estimation Using Binary Instrumental Variables
Background: Interpreting instrumental variable results often requires further assumptions in addition to the core assumptions of relevance, independence, and the exclusion restriction. Methods: We assess whether instrument-exposure additive homogeneity renders the Wald estimand equal to the average derivative effect (ADE) in the case of a binary instrument and a continuous …