英语翻译However,efficiency efforts – largely driven by new entra

英语翻译However,efficiency efforts – largely driven by new entrants – shuffle profits and power within the industry.A significant portion of advertising inventory that was proprietary is now “open” – sold through exchanges,as a result bypassing traditional intermediaries.New exchanges take major share in all advertising categories,and inventory that was once exclusively available to large advertisers – including historically proprietary national television spots – is now available to smaller buyers.