[Regional living conditions, migration, and family composition].

"On the basis of life history data of German birth cohorts born 1929-31, 1939-41, and 1949-51 hypotheses about the relation between regional context, migration and family formation are tested. Results of proportional hazard models do not show significant regional effects on first birth rates for stayers when sociostructural variables are controlled for. However, social background and employment status of [women], which are proved to be important factors concerning family formation, reflect differential regional opportunities on the labor market. For men including the indicator of marriage in the model makes the regional effect insignificant." The impact on fertility of rural or urban residence and of rural-urban migration is analyzed. (SUMMARY IN ENG)