This I think fits into your bucked "translating evidence into policy" - but the Behavioral Insights Team (full disclosure - where I work) did some work several years ago published in the Lancet, where sending a single letter to doctors that reduced antibiotic prescribing by 3.3% among the highest prescribing 20% of doctors. This translated into around 75,000 fewer doses nationwide in the study period. While we've replicated this in a few places successfully, I don't think this idea is in use globally and would be quite cost effective in the near-term.
This I think fits into your bucked "translating evidence into policy" - but the Behavioral Insights Team (full disclosure - where I work) did some work several years ago published in the Lancet, where sending a single letter to doctors that reduced antibiotic prescribing by 3.3% among the highest prescribing 20% of doctors. This translated into around 75,000 fewer doses nationwide in the study period. While we've replicated this in a few places successfully, I don't think this idea is in use globally and would be quite cost effective in the near-term.