Comparative study helps to define the organization structure of the subjects as well as give the differential points between the subjects matter. In comparative study we attempt to identify a cause effect relationship between two or more groups.
What is the purpose of comparative study?
The major aim of comparative research is to identify similarities and differences between social entities. Comparative research seeks to compare and contrast nations, cultures, societies, and institutions.
Why do we do comparative analysis?
The primary reason for comparative analysis is the explanatory interest of gaining a better understanding of the causal processes involved in the production of an event, feature or relationship. Typically it achieves this by introducing (or increasing) variation in the explanatory variable or variables.