normally property (wealth), power (influence), and prestige (status) occur together. that is, people who are wealthy tend also to be powerful and appear prestigious to others. yet this is not always the case. plumbers may make more money than do college professors, but holding a professorship is more prestigious than being a "blue collar worker". the three "PS' form the basis of social stratification in the united states and around the world, so a detailed discussion of these social rewards is in order.