* The “absolute nuclear” family type is both liberal and unequal. Children are totally emancipated, forming independent families of their own. The inheritance usually goes to one child, often a son.
* The “egalitarian nuclear” family type is both liberal and equal. Children are as emancipated and independent as in the previous type, but equal division of the inheritance encourages stronger parent-children relations before the passing of the parents.
* The “stem” family type is both authoritarian and unequal. Several generations live under one roof, with one child marrying to continue the line. The other children remain unmarried at home, or leave to get married.
* The “incomplete stem” family is as above, but with slightly more equal inheritance rules — an intermediate with the last family type.
* The “communitarian” family is both authoritarian and equal. All sons can marry and bring their wives into the ancestral home. The family inheritance is divided equitably among all children.
Is there a connection between family-inheritance type and fertility in today’s Europe? Have a look:
[Map from Eurostat]
How does “family type” affect fertility?
I have a hard time seeing seeing any strong correlation. More precise data would help. Certainly other factors seem more important, political, cultural, economic. German fertility is low across the board, across two family-type zones. Nevertheless, other ‘Stem Family’ regions have more robust fertility. Germans are clearly still very nationally — perhaps better-to-say ‘civilizationally’ — pessimistic, a legacy of defeat decades ago and demonization ever since.
A more suitable question would be, “all else equal, how does ‘family-type’ affect fertility?” Inheritance is a major part of this ‘family-type’ concept, and the question of inheritance and fertility was first brought to my attention by the commenter Rollory in a post about France’s low-fertility 1800s.
A casual analysis: Looking at Netherlands alone (all are part of Dutch culture), it seems Absolute Nuclear regions out-breed Stem Family regions. The highest-fertility department in France seems to be mostly Absolute Nuclear. The highest-fertility region of Scotland is Absolute Nuclear.
Why would “Absolute Nuclear” produce highest fertility?