As an entrepreneur, you have gathered a great deal of information in order to establish a business.
Market research is just one more way to gather information about the marketplace and consumers.
Most small business owners can easily define their market, based upon the target audience for their products or services. Basic characteristics such as gender, age, income, etc. Since most small businesses are doing business within a defined geographic area, another avenue of information is available. The U.S. Census Bureau has a wealth of information about the number of households, family size, income and age of the local populous. Keep tabs on consumer opinions.