Rules
How the FTC's endorsement guides change persuasion tactics at U.S. ad agencies
Persuasion psychology principles meet FTC endorsement guides: what U.S. ad agencies must disclose, test and document before any claim ships.
Topic
persuasion psychology principles
Reviews
Los Angeles advertising psychology compared with Chicago consumer research
Persuasion psychology principles differ by market: Los Angeles entertainment advertisers test reactions, while Chicago consumer research firms test comprehension.
Rules
Using social influence psychology in U.S. nonprofit fundraising under IRS rules
Persuasion psychology principles meet IRS 501(c)(3) fundraising rules: what charities may do, which donor techniques hold up, and where appeals cross the line.