Theorists[who?] have examined the value of repetition for soft sell versus hard sell messages, in order to determine their relative efficacy. Frank Kardes and others have concluded that a soft sell, with an implied conclusion rather than an overt hard sell, can often be more persuasive. Soft sell is also less likely to be irritating to consumers.
Herbert E. Krugman. An Application of Learning Theory to TV Copy Testing. The Public Opinion Quarterly, Vol. 26, No. 4 (Winter, 1962), pp. 626-634
Frank R. Kardes. Spontaneous Inference Processes in Advertising: The Effects of Conclusion Omission and Involvement on Persuasion. The Journal of Consumer Research, Vol. 15, No. 2 (Sep., 1988), pp. 225-233
David A. Aaker, Donald E. Bruzzone. Causes of Irritation in Advertising. Journal of Marketing, Vol. 49, No. 2 (Spring, 1985), pp. 47-57
This business-related article is a stub. You can help Wikipedia by expanding it.