Secondary research is mostly conducted to understand market trends or to understand if there are any changes in the preferences of the people. It is something that has been collected and analyzed by someone else. Some of the sources of data for secondary research are:
i. Official publications by the Central and local government.
ii. Reports submitted by research scholars, economist.
iii. Reports submitted by research and educational institutions.
iv. Newspapers and periodicals.
v. Trade journals specific to your industry.
vi. Online websites
vii. Unpublished data maintained by private firms, business enterprise, research workers etc.