תקציר באנגלית

high rate of leaving of the young age group on the other hand, the reproduction layer decreases relatively and significantly . The negative immigration balance which started in the late ­ seventies has caused a decrease in marriages and diminished the number of children on kibbutz, although the average number of children per family hasn't decreased . Following the above, the average age of kibbutz leadership ­ seems to have gone up considerably . Summary The Kibbutz' unbalanced demographic structure has far reaching implications which need further evaluation and a change of former approaches . There is an equivalence factor between the rate of leaving of kibbutz­born and the absorption of outsiders who are providing the only alternative for the leaving kibbutz born members . It is evident that a restoration of the population pyramid may require a process of about 15 years of increased absorption from outside the kibbutz . Nevertheless a 209 b increase of absorption and a decrease in 10...  אל הספר