Michael Schudson — American Sociologist

Michael S. Schudson is Professor of Journalism in the Graduate School of Journalism, Columbia University and Adjunct Professor in the Department of Sociology. He is Professor Emeritus at the University of California, San Diego. He is a well-respected and widely-cited expert in the fields such as journalism history, media sociology, political communication, and public culture... (wikipedia)

Advertising generally works to reinforce consumer trends rather than to initiate them.
Buy me and you will overcome the anxieties I have just reminded you of.
The effectiveness of advertising depends on the amount and kind of product information available to consumers... advertising will be more successful the more impoverished the consumer's information environment.
The power of ads rests more in the repetition of obvious exhortations than in the subtle transmission of values.
Advertisements ordinarily work their wonders, to the extent that they work at all, on an inattentive public.