Date: Mon, 16 Aug 1999 13:49:05 +0200
From: "Gatherer, D. (Derek)" <D.Gatherer@organon.nhe.akzonobel.nl>
Subject: RE: Defection Rates and Classes (was Parody of Science)
To: "'memetics@mmu.ac.uk'" <memetics@mmu.ac.uk>
Tim:
(( P * (1 - Ddown) ) * Rp) = the number of children from professional class
parents that will themselves enter the professional class in the next
generation (old money)
(( W * (1 - Dup) ) * Rw) = the number of children from working class parents
that will also enter the working class in the next generation
Derek:
Yes, agreed.
Tim:
(( W * Dup ) * Rw ) = the number of children from working class parents who
will enter the professional class in the next generation (new money, if you
will)
Derek:
Not agreed. Doesn't this assume that the upwardly mobile workers enter the
professional classes, but then for the first generation reproduce at worker
rates? (hence the * Rw ????)
The number of workers entering the professional classes is just
W * Dup
Tim:
(( P * Ddown ) * Rp ) = the number of children from professional class
parents who will enter the working class in the next generation.
Derek:
No, again it's just P * Ddown
I think I can see the difference we are having. I want reproduction to
occur within classes, and then the adults move classes prior to the next
round of reproduction (which they will carry out according to the parameters
of the class they have entered, not the one they were born in). Your
equations seem (I think) to have reproduction and movement going on together
(????).
===============================================================
This was distributed via the memetics list associated with the
Journal of Memetics - Evolutionary Models of Information Transmission
For information about the journal and the list (e.g. unsubscribing)
see: http://www.cpm.mmu.ac.uk/jom-emit