Browsing over the ever informative marketingmagazine.co.uk, I now know that branded-goods manufacturers spend £25.6 billion annually on sales promotion activity within retailers, according to the Institute of Sales Promotion.

It’s not just promotional products that businesses use to increase sales. Over 50% percent of that total, £14.4 billion, was spent on retailer promotions such as BOGOFs n the 2007/8 financial year. That compares with £18.6 billion spent on above-the-line ad spend in 2008. The research is the first project overseen by retail industry researcher Colin Harper, who was recently named as the ISP’s first head of insight.

‘People only tend to notice the obvious marketing spend, on above-the-line advertising or obvious Point of Sale (POS) activity, for example. But sales promotion is a bit like an iceberg — there is far more going on below the surface than immediately meets the eye,’ Harper said.