In a world first, this study evaluates radio advertising effectiveness in detail in terms of revenue return on investment across a broad dataset. The results are
based on an analysis conducted by Holmes & Cook of ROI data supplied
by nine econometrics agencies representing all major media agency groups,
covering over 2,000 individual campaigns across 517 separate advertising
campaigns. The campaigns covered ten major sectors, and used a variety of multimedia
combinations. All data were supplied direct by the agencies, and unbranded
to preserve client confidentiality. Find out more...