Earlier quoted context omitted.
> The correct comparison would be of the marginal cost of eligibility testing (both in terms of false positives and false negatives) vs the marginal cost of fraud. There is a much better way to do this, because the way we do it is entirely asinine. On the one hand we say that people who make more money should pay higher marginal tax rates, and set marginal rates on lower income people to low or zero rates. On the oth…
>On the one hand we say that people who make more money should pay higher marginal tax rates, and set marginal rates on lower income people to low or zero rates. On the other hand we demand means testing at lower income rates, which is equivalent to a tax on marginal income. Isn't this already the case? It's true that you need to means testing to get access to additional benefits, but the tax rate itself is already p…
Another way of saying this is that a flat marginal tax rate combined with a fixed-amount universal tax credit (UBI) is a progressive tax system. But it's a much simpler progressive tax system which is harder to game and doesn't result in unintended nonsense like phase out cliffs or higher marginal rates on lower income people than higher income people.