who is putting this idea of an informal pact under AV forward? The Tories (who are opposing AV). Why are they going public with this stuff now? because they fear the effects of Labour joining up with the pro-AV campaign and actually delivering it. Neither side of the coalition can really do this - although Clegg and Cameron would be no doubt quite happy with it - but there is no way that Clegg will get people like Kennedy and Hughes to agree to calling on LDs to vote Tory 2nd. And in without the LDs arguing that way, the Cameron couldn't get the Tories doing it the other way.
Er... yes, the tories - it doesn't matter why they're doing it. You can speculate that they're fearful of a lab getting behind AV if you like. I don't think they're in the slightest bit scared of AV at all - most models have shown they're going to quite well out of it (undermining the logic of
one of your arguments - i say
one because you've thrown so many, often contradictory or incoherent ones at us). I think it's far more likely that this being put out into the open right now is a simple recognition that the tories and the lib-dems no longer have any choice in an AV election but to to hang together or be hung separately. To refuse to endorse your coalition partner of 5 years, to refuse to endorse the party you've joined together to attack the poorest with, to refuse to endorse the party whose policies are substantially your own is to invite ridicule and attack and to effectively refuse to endorse yourself and your own party. That's what all this is about.
We all heard the same arguments before the coalition btw - Kenendy, Hughes, Ashdown etc would never ever countenance a coalition with the tories, if it happened there's be mass dissent - MPs crossing the floor and so on. Never happened. And it won't happen when the reality of the situation -that they must endorse each other if they are to retain any credibility - becomes formalised. You can't see this because you're living in a fantasy world that still sees the lib-dems as somehow on the left and retaining a substantial left wing vote. They're not and they don't. Really, you need to catch up with reality.
Re Curtice, his analysis shows what would happen *if* LD voters in areas where they have historically constituted the main opposition to the Tories and whose vote last time depended on a fair chunk of anti-Tory tactical voters had done a 180 degree turn as a result of the coalition. Labour's problem, ironically, is that under FPTP these people have no chance of casting an effective vote (ie one which could influence the outcome) if they choose to express political opposition to the turn the LDs have made. Curtice is a psephologist not a political strategist.
Yes, his analysis shows what would would happen if what looks pretty likely to happen does happen. That's a strength of his analysis not a weakness. You're confusing an anti-tory vote with a pro-lib-dem vote here. An anti-tory vote is now not going to be a lib-dem vote - a lib-dem vote is now seen as a pro-tory vote. This, like the above, is where you need to get up-to-date. You're going to see the seats in the south-west where the lib-dems were fist or second have large falls in the lib-dem vote no matter what system. And no, the lib-dems trying to look left-wing for 18 months isn't going to fool anyone.
BTW - speaking of expertise are you aware of any reputable democracy sector organisation that is calling for a NO vote? ERS, Unlock Democracy, OpenDemocracy, Rowntree Reform Trust, Power 2010, Democratic Audit... all YES.
Not bothering to reply to this in any detail beyond saying that i'm not surprised that a group of professionally and personally inter-locked lib-dem and soft-left types (the constitutionally obsessed - it's never economics with them) support something that they can pretend is their own long held dream - despite it actually selling out their formal objective, despite it being a 'miserable compromise'. As for your 'reputable'...