It is the study where we can make comparisons, where we can do the study of two products which are of same category like in case of product related with chocolates, cosmetics, garments and any other. We basically compare two different brands as per their quality, size, style, features, design, maintenance, services, speed, looks and many more. https://www.expertsmind.com/marketing/comparative-study-marketing-homework-assignment-help.aspx