[rzwitserloot]

That would more accurately gauge the effect on how much it disincentivizes, and how it changes the lifestyle of the recipient.

It does very little to test economics. Perhaps UBI leads to a lot of people deciding to tend bar at the local tennis club, volunteering for the job. Maybe introducing UBI across a large area has marked effects on gym memberships.

Those seem easier to test if you put a large area on UBI for a short-ish term (though I admit I haven't seen any UBI research that analyses such social effects - perhaps somebody knows of some?)

[datashow]

Good point. UBI may change the way of life dramatically.