Market segmentation is the process of grouping a market into smaller subgroups. This is not something that is arbitrarily imposed on society: it is derived from the recognition that the total market is often made up of submarkets (called segments). These segments are homogeneous within (i.e. people in the segment are similar to each other in their attitudes about certain variables). Because of this intra-group similarity, they are likely to respond somewhat similarly to a given marketing strategy. That is, they are likely to have similar feelings about a marketing mix comprised of a given product, sold at a given price, distributed in a certain way, and promoted in a certain way.