The key finding is that the incidence of vulnerability is the highest when consumers face complex advertising or when they have problems comparing deals because of market-related or personal factors, giving them difficulties getting informed, comparing, accessing and choosing between offers. Presenting offers in a simpler and clearer way significantly improves consumers' ability to select the best deals and to exercise their right to choose other alternatives.
If you are interested, take a look at the Commission's factsheet and final report here.