In my experience retailers have rather simple pricing methodologies and most of them use variants of cost+ (cost+ = taking your cost and adding a standard margin based on group/category). They manage their pricing in Excel or have built in the pricing calculation into their ERP. Few of them actually uses a price optimization tool, though it’s increasing in popularity in the last few years, especially with the growing competition from online retailers.
To dig deeper, I think a first good step is dividing the retailers into two major sub-groups: own brand sellers (H&M, IKEA, J Crew, Zara) and re-sellers (Media Markt, Bauhaus, Wall-Mart, Home-depot, Carrefour).
