Influence...Not so much
The mind is a deeply complex organ, at times influenced by small, seemingly trivial things, and at others closed off to any external stimuli. Think of it as an onion, with belief at the center and perception at the outermost layer. Subtle stimuli can alter perception not just more easily than they can belief, but alsocan alter perception in nearly imperceptible ways, as air overtime hardens and dries the top layer, not affecting the layer beneath.
Case in point: Associations with brand logos. No core belief is needed to deal with company logos and associations made with them, thus those associations are more easily influenced. A recent study showed people subliminally exposed to Apple's logo were more creative with their tasks than people exposed to IBM's.
Likewise, as posted on the Today show's website, it's easy to send subtle cues to other people physically in order to get them to associate certain positive traits in their mind. For example: having a picture of a dog on your desk to convey loyalty or wearing a black suit to convey authority. This is what is also referred to as "the power of suggestion."
In short, perception is easily manipulated because people are less likely to guard their perceptions than their beliefs. Changing someone's faith, on the other hand, would be a much more difficult task, as belief is protected at the center of the onion.
Understanding this relationship is important when considering the implications of other studies and how those implications apply to marketing efforts. More than one piece of research has found, for example, that people are more likely to be influenced by friends and families than they are an A-list blogger. Part of that rests with the belief that someone is trustworthy versus the perception that someone is trustworthy. Some, though, take that information and jump to the conclusion that blogger endorsements and celebrity endorsements are over-credited for effectiveness.
The underlying assumption is that it all comes down to how much trust people put into a recommendation. People these days are much less likely to put trust in a celebrity they know is paid to say something. That distrust could extend to bloggers as well, either for that reason, or lack of certainty of the person's identity (especially in light of recent hoaxes), or a myriad other reasons not to trust a stranger.
So, a consumer in the market for an automobile is more likely to trust a friend or relative, especially one with long-term brand experience than a blogger in another state. Yeah, well, when you put it that way, it's not such a surprise, is it?
Veteran communications specialist Shel Holtz doesn't think it should be shocking, either, and criticizes competing viewpoints that trust is the most important metric in marketing:
"Whatever happened to the importance of building awareness?" asks Holtz at his blog. "While the influential bloggers-the so-called 'A-listers'-may not have influence, they do have eyeballs. They are A-listers, after all, because people read them. I may have greater trust in my friend in the next cube, but where did he hear about it? And if he heard about it from a trusted friend or family member, they read about it from a source that gets broad distrtibution [sic]. The information has to start somewhere."
- Jason Lee Miller