RT Journal Article
SR Electronic
T1 Media Scheduling and Carry-over Effects:
JF Journal of Advertising Research
JO J Advert Res
FD WARC
SP 66
OP 70
DO 10.2501/JAR-42-4-66-70
VO 42
IS 4
A1 Erwin Ephron
A1 Colin McDonald
YR 2002
UL http://www.journalofadvertisingresearch.com/content/42/4/66.abstract
AB The current U.S. recency-based scheduling model focuses entirely on the short-term effects of advertising, arguing that in competitive markets the data show that response to advertising dissipates rapidly. This approach leads to consistent moderate weight and near continuous scheduling. Others disagree. Adstock, a well-established concept in the United Kingdom, has been seeping into U.S. planning through globalization and marketing-mix modeling. It has introduced carry-over effects into U.S. TV schedling, which encourage GRP concentration, flighting, and less continuous advertising. We believe that the way Adstock is currently being used by U.S. agencies to modify GRP lay-down is seriously flawed, because it is based on a misunderstanding of what Adstock is. This paper wil explain what we consider to be the fallacy and pinpoint just what place, if any, Adstock can have in media scheduling.