Toward a taxonomy and review of honesty interventions

What types of honesty interventions have been tested and to what extent? We conducted a systematic literature review of single-element intervention studies designed to curtail individual-level dishonesty and classified the obtained interventions in a taxonomy that encompasses three frameworks: nudging, economic, and internal-reward. We find moral reminders that we classify as educative nudges as well as external commitments (pledges, oaths, honor codes) and priming that we classify under the internal-reward framework to be the most frequently studied interventions, whereas architectural nudges (defaults, sludge) have hardly been developed. Most importantly, we identify two areas for improvement essential for our collective ability to successfully translate and scale honesty interventions: a more thorough examination of the interventions' underlying psychological processes and precise description of the experimental designs.