M. Siffert, you are totally right. This is why such a partitioning can only be applied to proportional systems (real PR systems, not semi-proportionals nor quota defined systems). The idea is to obtain equivalent samples of the electorate in order to rank different pairs of debate-position. This is how SPPA works.
Stéphane Rouillon. Curt Siffert a écrit : > I wonder about the agenda of this kind of partitioning scheme, though. > > It seems to be that before partitioning scholars suggest partitioning > strategies, they must agree on their objective. > > Here in the US, a commonly held belief is that a fair district > partioning must reflect the makeup of the region's voters. In other > words, if a state is split 55-45, then the districts must be formed in > such a way so that the representatives are split about 55-45 as well. > > But, if the 55-45 were instead evenly distributed amongst all > districts, you'd get all districts with a 55-45 majority, or, unanimous > representation from the 55 group. This would be less representative > than the most extreme gerrymanders. > > I would bet that date-based partitioning would be extremely susceptible > to that problem. > > Curt > > On May 13, 2005, at 11:25 AM, <[EMAIL PROTECTED]> wrote: > > > The Institut des Statistiques du Quebec provided me with the > > repartition of people according to their date of birth. > > > > Using this information to build non-geographical districts based on > > date of birth, month and some modulo of the year provided the > > following results: > > for 125 seats (as in the current Assemblee Nationale), one can > > obtained 125 consecutive districts with a +/- 10% variation. > > Consecutive means that persons are regrouped using successive > > birthdays (like january 1st, 2nd and 3rd). Using non-consecutive > > birthdays to minimize the variations, one can obtain districts with > > the same population size within a +/- 0.1% margin. > > Of course in both case a special treatment for people born a february > > 29th puts them with christmas born persons which are less common. > > > > Birth dates are only one example of how to build non-geography based > > districts, "astrological" districts in this case. > > > > Stéphane Rouillon. > > > > > > ---- > > Election-methods mailing list - see http://electorama.com/em for list > > info > > > > ---- > Election-methods mailing list - see http://electorama.com/em for list info ---- Election-methods mailing list - see http://electorama.com/em for list info
