[dllthomas]

It's certainly true that BI will reduce incentives to work, 1) on paid projects, 2) first order, 3) amongst those who are not currently receiving assistance.

Regarding each of these caveats in turn:

1) There are plenty of projects that we individually may deem socially worthwhile that we don't pay for. Parents raising their children being probably the strongest example, but there are other places where value is simply hard to capture. Incentive to work on these is not decreased by BI.

2) Incentive to work depends on what people are willing to pay you for your labor. If BI ultimately means people are willing/able to pay for more things then the total incentive to work may rise. So far as I'm aware, this is not a settled question (it seems a probable second-order consequence but possibly drowned by inflation, &c...)

3) Anyone currently receiving disability or welfare payments is not merely being paid despite not working, they're effectively being paid not to work. Transitioning to unconditional support will clearly increase their incentive to work.

What all this does in aggregate is not at all clear to me.