Friday 12 August 2016

Childbirth As Strategy

How's this for a longterm evangelistic, business or political strategy:
Suppose that out of every 10 women in the present generation:

  • 3 have no children (Group A)
  • 3 have one child (Group B)
  • 2 have 2 children (Group C)
  • 1 has 3 children (Group D)
  • 1 has 4 children (Group E)

First Generation Offspring


The total number of children is 14

Average fertility is 1.4

Children in Group E number 28% of all children
Note:- the most fertile 10% of women contribute nearly a third of all the children in the first generation of offspring (4 out of every 14)

Next Generation


Assuming each female has as many children as her mother, in the second generation:
  • In Group A there would still be 0 children
  • In Group B - 3 children of course
  • In Group C - 8 children
  • In Group D - 9 children
  • In Group E - 16 children
Total = 36 children

Average fertility = 2.57 (up from 1.4)

Children in Group E = 44% of all children Note:- nearly half of all children have come from Group A

Third Generation

  • Group A - 0
  • Group B - 3
  • Group C - 16
  • Group D - 27
  • Group E - 64
Total = 110 children

Average fertility = 3.05

Children in Group E = 58% of all children

Note:- in the third generation, more than half of all children have come from Group A

Fourth Generation

  • Group A - 0
  • Group B - 3
  • Group C - 32
  • Group D - 81
  • Group E - 256

Total = 372 children

Average fertility = 3.38

Children in Group E = 69% of all children


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