For example, marketers are facing decline in the sales of the product and they do business research on "Impact of packaging and shelf positioning on impulse buying behavior of consumers". This research will show that why consumers go for impulse buying and how marketers can get benefit by offering attractive packaging and locating products on front shelves.
There are various fields of business and suppose a researcher is interested in carrying out a research on business ethics then he can do research on "Business ethics and sales risks". Business research can also be carried out for the new start ups and the topic can be "How to write a business plan".
For more examples: Business researches