sense of sensitivity: Extending omitted variable bias. Journal of the Royal Statistical Society: Series B (Statistical Methodology), ( ), – . Conley, T. G., Hansen, C. B., & Rossi, P. E. ( ). Plausibly exogenous. e Review of Economics and Statistics, ( ), – . Ding, P., & Miratrix, L. W. ( ). To adjust or not to adjust? Sensitivity analysis of m-bias and butter y-bias. Journal of Causal Inference, ( ), – . van Kippersluis, H., & Rietveld, C. A. ( ). Beyond plausibly exogenous. e Econometrics Journal, ( ), – .