recency

Revisit Erwin Ephron's Enduring Lessons for Media and Marketing in this eBook

  • ARF

This eBook tribute to Erwin Ephron, compiled by the ARF, revives over 150 of his iconic newsletters—each reinterpreted through a modern lens using AI. Known as the “father of recency theory,” Erwin championed simple truths in media and advertising, transforming industry paradigms. His timeless observations, from reach versus frequency to engagement confusion, remain strikingly relevant in today’s digital, data-heavy marketing landscape.

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  • Article

WOW! The Wit and Wisdom of Erwin Ephron

Despite a significant amount of research focusing on optimal frequency and recency, stemming back to the 1960’s, there is very little consensus on how many exposures/impressions are “too many” across platforms. Indeed, a blank frequency cap is likely to lead to inefficiencies. The bottom line, there is no simple “rule of thumb” for optimal frequency planning. Read more.

Member Only Access
  • Article

ARF KC CRR: Creative and Media Balance

Despite a significant amount of research focusing on optimal frequency and recency, stemming back to the 1960’s, there is very little consensus on how many exposures/impressions are “too many” across platforms. Indeed, a blank frequency cap is likely to lead to inefficiencies. The bottom line, there is no simple “rule of thumb” for optimal frequency planning. Read more.

Member Only Access
  • Article

The Wit and Wisdom of Erwin Ephron

Despite a significant amount of research focusing on optimal frequency and recency, stemming back to the 1960’s, there is very little consensus on how many exposures/impressions are “too many” across platforms. Indeed, a blank frequency cap is likely to lead to inefficiencies. The bottom line, there is no simple “rule of thumb” for optimal frequency planning. Read more.

Member Only Access