I recently wrote this piece for an m/SIX newsletter – it summarises the contribution of six people to the development of marketing effectiveness. SIX pioneers of marketing effectiveness past and present 1. Claude Hopkins, the copywriter who earned $2.7m per year selling Bissell vacuum cleaners We all talk about market effectiveness and marketing science, but … Read More
Simon Broadbent
Adstock and Diminishing Returns: non-linear advertising effects
Adstock is an important concept in marketing effectiveness. It was first quantified by Simon Broadbent in the 1970s. Its value lies in helping make marketing and media mix models more accurate by recognising that advertising and media investments have non-linear “carryover” response effects. These non-linear effects are normally grouped into two areas: the delayed effect … Read More