Answer
Economic groups look for some sort of economic gain for their members and these are the most common type of interest group. These groups are well funded and they willingly contribute money so that they would benefit in future through more political influence and higher profit. They work to win private goods, which are payback that only the members of the group will enjoy. Two main economic groups are:
BUSINESS GROUP: It works to encourage the welfare of private companies and corporations by seeking tax cuts, regulatory changes, and other pro-business benefits. Firms also form associations with companies from the same industry to promote all of their interests.
LABOR GROUPS: Labor groups represent unions, which work to increase wages and improve working conditions for both skilled and unskilled workers. These unions influence the organizations and get their interests fulfilled.