Motivations and experiences / social background in own country / educational level / experiences in job / information about Germany / experiences with assisting institutions / life and job satisfaction / social relationships at work / savings / social integration / leisure activities / exposure to mass-media / language problems / political preference / consumer behaviour / hopes and fears. Background variables: basic characteristics/ place of birth/ household characteristics/ characteristics of parental family/household/ occupation/employment/ income/capital assets/ politics/ religion/ consumption of durables