Economists who want to study the effect of a basic income can travel to Alaska and see the impact for themselves.
It always struck me as ironic because Alaska is one of the most conservative states, and conservatives are not usually in favor of handouts. In this case, however, the inflows to the fund come not from personal income taxes but from taxes and lease-revenue on the state's natural resources, notably oil and gas. Because of this, people view it as a birthright, similar to an inheritance, rather than a handout, like welfare.
In 1976 Alaska's citizens just banded together and determined that (1) all of these natural resources are shared, and the benefits from them should be shared also; and (2) none of us trust the Government to spend this money for us, better than we could spend it ourselves. Today, it is the most popular Government program in the state with near absolute bi-partisan support.
So there seems to be precedent that this can work, if you have a massive sovereign wealth fund that is fed by revenues from shared resources. There are other countries, like Saudi Arabia or Norway, who will probably be the first to try this on a nation-wide scale before Switzerland.