There will always be a group of individuals who are content with the minimum without making any effort. This group will not work to gain more. They are just content at not working and getting the minimum wage and additional government handouts.

My experience is from a communist country. The shoddy craftsmanship for buildings, cars, services all around in my opinion was direct result for all the promised universal basic "something". In the beginning it all seemed good and well, but as more and more people got on the UB something, the less and less production/service was done.

This is not a communist/socialist economic problem, but a human nature problem in my opinion. We always go for the least amount of effort, for the most amount of reward.

To this effect, I cannot see how to prevent UBI pushing the lowest common level of participation in the society as a producer.