Jobless people generally cannot earn additional income while collecting unemployment benefits or they risk losing that assistance. Worst. Idea. Ever. I know -- it's a common feature of income support systems, including here in the US. I don't know whether UBI is going to prove workable or not. But even if it doesn't, if we could just redesign the systems we do have so they never give recipients a disincentive to work…
Means-tested programs are the epitome of wasteful government bureaucracy. It's never the right way to "compromise". If we can't sell straight UBI, then something like universal food stamps would be a good first step: https://web.archive.org/web/20160321083817/http://mattbrueni...
What I care about is that the function from income earned to income (including subsidy) received be monotonic. Again, the income tax system (at least in the US) is carefully designed to have this property: when you make enough more money to move into a higher tax bracket, that higher rate is applied only to the amount of your income in excess of the lower bound at which that bracket applies. So the total amount of tax never jumps discontinuously, even though the marginal rate increases. Even though you keep less of your next dollar of earnings the more you make, there's never a point at which earning the next dollar will leave you with less money after tax.
The same should be true even if you're receiving a subsidy. That's all I'm saying.