An interest group is a group of people who all share a common interest. These people work together to bring awareness to this common interest by influencing the government. An interest group is an association of individuals which is generally formally organized and attempts to influence public policy in its favor. All interest groups share the desire to affect government policy in some way in order to benefit themselves or their cause. Political scientists generally split interest groups into two different categories. One being economic, the other being non-economic. Economic groups seek some kind of economic advantage for their members and they are the most common type of interest group. Money has a large influence in capitalist societies therefore economic interest groups are powerful and numerous. These group members are usually willing to contribute money with high hopes of generating greater political influence and profit which is why these groups are usually well funded. Economic groups only work to win private goods which are benefits that only the members will enjoy. If there is no private good incentive present, people most likely won’t join especially if there is a membership fee. Non-economic groups are sometimes referred to as the citizens’ group. This interest group fights for causes instead of working for materialistic gains. They seek to better society as a whole or to reform the political, social, or economic system in a way that doesn’t directly affect the members. They try to get the government to do things that will benefit the people. Unlike economic groups, non-economic groups seek public groups which benefit everyone in the society and not just the members of the group. Instead of materialistic incentives, these groups give their members a variety of selective incentives.