Also, within the culture, persons are perceived as occupying inferior or superior positions according to social class. Social class is indicated by a cluster of variables rather than by any single variable.Still, individuals can move from one social class to another-up or down-during their lifetime. Because social classes often show distinct product and brand preferences, some marketers focus their efforts on one social class. Neiman Marcus, for example, focuses on the upper classes, offering top-quality merchandise in upscale stores with many personal services geared to these customers’ needs.