SOCIAL MOBILITY
INTERGENERATIONAL MOBILITY: The change that family members make in social class from one generation to the next
UPWARD SOCIAL MOBILITY: Movement up the social class ladder
DOWNWARD SOCIAL MOBILITY: Movement down the social class ladder
STRUCTURAL MOBILITY: Movement up or down the social class ladder that is due to changes in the structure of society, not to individual efforts
EXCHANGE MOBILITY: About the same numbers of people moving up and down the social class ladder, such that, on balance, the social class system shows little change.