Market segmentation involves dividing the total market into smaller groups based on common characteristics. The key benefits are being able to identify and satisfy specific group needs efficiently. However, segmentation also limits mass production economies of scale and standardization. Common bases for segmentation include demographics, psychographics, behaviors, and geography. Effective segmentation requires measurable, accessible groups that are large enough to be profitable. Targeting and positioning further refine the market focus based on organizational goals, resources, and profits.