2004k-792 20thcentury adult advertising attitudes business childconsumers children consumerbehavior consumption(economics) economicconditions economics employment generationx greatbritain history hn60g3262004 industrialmanagement labormarket lifestyles management managementscience marketing marketsegmentation organizationalbehavior populationcharacteristics psychologicalaspects qualityoflife research socialaspects socialconditions sociallifeandcustoms socioeconomicfactors statistics teenagers unemployment unitedstates youngadultconsumers youngadults