I need to find out what scientific research has been done (in different
countries) on online store design and merchandising, e.g.; how do you
place a specific product to to get your customers to buy it and at the
same time get the customer to see other products on the way? etc.

I need to find _scientific_ research on this subject ? articles and
reports done by researchers connected to Universities or other
scientific institutes. In these studies the method is very important.