RT Journal Article SR Electronic T1 Why Shorter Advertisement Breaks Reduce Radio Advertisement Avoidance JF Journal of Advertising Research JO J Advert Res FD WARC SP 2024-008 DO 10.2501/JAR-2024-008 A1 Michelon, Aaron A1 Bellman, Steven A1 Faulkner, Margaret A1 Cohen, Justin A1 Bruwer, Johan YR 2024 UL http://www.journalofadvertisingresearch.com/content/early/2024/03/26/JAR-2024-008.abstract AB Low-clutter radio stations have shorter advertisement breaks to attract listeners, increase advertisement effectiveness, and potentially reduce mechanical advertisement avoidance (i.e. swithcing stations). This research introduces a two-factor theory explaining why mechanical advertisement avoidance has an inverse U-shaped relationship with advertisement position in the break, and advertisement break length in advertisement units. The theory was supported by portable people meter (PPM) ratings data. Peak mechanical avoidance occurred at the fourth advertisement position, similar to the average advertisement break length perceived by radio listeners from the same city as the PPM data. This explains why the two-advertisement breaks that are typical for low-clutter radio stations minimize mechanical avoidance.