BusinessAdvertising adds up to $40bn vrinda sharma10 months ago01 mins Advertising spending contributes about $40 billion a year to the Australian economy, or 2 per cent of GDP. Advertising spending contributes about $40 billion a year to the Australian economy, or 2 per cent of GDP. The Australian | Business | News Post navigation Previous: Three in race for port saleNext: Oil rise fails to lift stocks Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.