
ADVERTISING WEEK, an annual stretch of industry meetings that began on September 26th in New York, is usually defined by schmoozing and self-congratulation. This year’s event has been marred by suspicion. In the week leading up to it, Dentsu Aegis, a big agency, admitted overbilling by its digital-ad division in Japan; and Facebook, a tech giant, said it had inflated the average time people spent watching video ads.








