Google is selling ad inventory where it didn't previously. Google Shopping is slowly rolling out across the world, initially in new markets there is a lot less

Google is selling ad inventory where it didn't previously. Google Shopping is slowly rolling out across the world, initially in new markets there is a lot less competition than established ones, so the clicks can be had a lot cheaper. For example we are probably paying half for the same quality Google Shopping clicks in New Zealand than we are in Australia or the US. This won't last.