Well, here&#x27;s the thing, if the level it is set at leads to output-reducing withdrawal from the workforce more than output-increasing effects, then it also leads to inflation which drives price levels up and drives people back into the workforce [0] -- its self-limiting.<p>The bigger problem is that the economy might not yet be able to sustain a level at which UBI isn&#x27;t substantially <i>worse</i> for the neediest populations than existing support programs -- increasing capacity through automation will get us there eventually, but its far from clear we&#x27;re there now.<p>Which is why, while I think UBI is a great idea to adopt and phase in, I don&#x27;t think a big-bang short-term conversion is a good idea.<p>[0] unless it is pegged to inflation, then if its set initially in a bad place, its stuck there. So, if you are going to index it rather than manually adjust it, don&#x27;t index it to inflation, index it to output&#x2F;revenue measures, not price levels.