treatments are conditionally randomly assigned and the controls are sufficiently flexible to avoid omitted variables bias … treatments. Thus, recent concerns about heterogeneity-induced bias in regressions leveraging potential outcome restrictions (e … contamination bias and propose a new class of efficient estimators of weighted average effects that avoid bias. In a re-analysis of …

tax evasion is subject to a self-serving bias. We find that tax morale is egoistically biased: Subjects with the …

tax evasion is subject to a self-serving bias. We find that tax morale is egoistically biased: Subjects with the …