【2010年阅读Text 3 第2段】
In many such cases, a cursory search for causes finds that some small group of people was wearing, promoting, or developing whatever it is before anyone else paid attention.
①The supposed importance of influentials derives from a plausible-sounding but largely untested theory called the "two- step flow of communication": Information flows from the media to the influentials and from them to everyone else.
②Marketers have embraced the two-step flow because it suggests that if they can just find and influence the influentials, those selected people will do most of the work for them.
③The theory also seems to explain the sudden and unexpected popularity of certain looks, brands, or neighborhoods.
④In many such cases, a cursory search for causes finds that some small group of people was wearing, promoting, or developing whatever it is before anyone else paid attention.
⑤Anecdotal evidence of this kind fits nicely with the idea that only certain special people can drive trends.