| Term | Definition |
| boycott | A form of pressure or protest--an organized refusal to purchase a particular product or deal with a particular business. |
| climate control | The use of public relations techniques to create favorable public opinion toward an interest group, industry, or corporation. |
| direct technique | An interest group activity that involves interaction with government officials to further the group's goals. |
| free rider problem | The difficulty interest groups face in recruiting members when the benefits they achieve can be gained without joining the group. |
| indirect technique | A strategy employed by interest groups that uses third parties to influence government officials. |
| interest group | An organized group of individuals sharing common objectives who actively attempt to influence policymakers. |
| labor movement | Generally, the economic and political expression of working-class interests politically, the organization of working-class interests. |
| latent interests | Public-policy interests that are not recognized or addressed by a group at a particular time. |
| lobbyist | An organization or individual who attempts to influence legislation and the administrative decisions of government. |
| material incentive | A reason or motive having to do with economic benefits or opportunities. |
| public interest | The best interests of the overall community the national good, rather than the narrow interests of a particular group. |
| purposive incentive | A reason for supporting or participating in the activities of a group that is based on agreement with the goals of the group. For example, someone with a strong interest in human rights might have a purposive incentive to join Amnesty International. |
| service sector | The sector of the economy that provides services--such as health care, banking, and education--contrast to the sector that produces goods. |
| social movement | A movement that represents the demands of a large segment of the public for political, economic, or social change |
| solidary incentive | A reason or motive having to do with the desire to associate with others and to share with others a particular interest or hobby. |