The Uses and Abuses of Sortition

Posted on July 21, 2019 by keithsutherland

Given that sortition is finally beginning to be taken seriously by politicians, academics and the mainstream media, some of us on this forum have expressed concerns about potential abuse. André has drawn our attention to the risk of politicians and public intellectuals using sortition to provide a patina of legitimacy to undemocratic practices — examples include Emanuel Macron’s ‘Great Debate’ — and there has been the usual concerns about the rich ‘n powerful using sortition to paper over the cracks of the electoralist oligarchy.

My own concerns are over the willingness of sortition advocates to assume that small stratified samples, in which participation is entirely voluntary, can represent the beliefs and preferences of all citizens. Leaving aside the size issue (most statisticians insist on a minimum of several hundred or even 1,000 for a representative sample) my principal concern is that the voluntary principle will significantly over-represent activists, “progressives” and those who want to change things, as oppose to the ‘silent majority’. The decision of the 2004 British Columbia Constitutional Assembly to change the voting system was overturned in the subsequent referendum, but this might well have been anticipated as only 4% of the original random sample opted for selection, thereby generating an unrepresentative sample (Warren and Pearse, 2008). My assumption here is that the decision not to participate might well be a sign of a conservative (small ‘c’) disposition.

Extinction Rebellion (XR) is a UK climate-change group which has gained a lot of publicity recently on account of its civil disobedience campaign, which brought much of  central London to a standstill in April. Their goal is zero carbon emissions by 2025, which would mean the banning of air transport and the removal of 38 million cars (both petrol and diesel) from the roads. In addition, 26 million gas boilers would need to be disconnected in six years.
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Filed under: Mass action, Press, Sortition | 15 Comments »