Imagine that you’re leaving your office building at the end of the day and you see a guy grab a woman’s purse and run down the block. You’re feeling fit and know you can easily catch him and retrieve the purse but you’re carrying a heavy briefcase full of paperwork. There are two people standing beside the entrance there – you don’t know either, but one person is somewhat familiar because you’ve seen him a couple of times in the elevator. Which one do you ask to watch your briefcase so you can catch the thief?
Studies show, and most people would agree, that the (even slightly) familiar person is the one you’re most likely to trust with your briefcase. This is an example of what social scientists refer to as the Familiarity Principle or the Mere Exposure Effect. Continue reading →


