1.   A more sensitive indicator of fertility behaviour is the average completed family size of women born in the same year.

2.   A relaxed attitude to family size and the timing of births then cost little.

3.   Divorce, Decreases in family size and the increased labour Market participation of women raise questions about future supplies of informal care.

4.   Dual graduate couples have the highest fertility of all, if family size up to four children only is considered.

5.   Education also increases equality in the Marriage relationship, giving women more control over Decisions concerning family size.

6.   It has a lot to do with not making a necessity of limiting family size.

7.   Lower social groups had a higher average family size.

8.   Not only have contraceptive methods allowed this kind of Planning but social norms of family size have changed and increased in tolerance.

9.   Parasitic infections were high regardless of family size and appeared unrelated to birth order.

10.   Social factors have played their part in the Decline in family sizes.