> Under capitalism, wouldn't a guaranteed income have a
> tendency to inflate prices?
Only if it was done wrong :-)
It turns out this is nearly an FAQ, so it's best to just ask The Google.
https://www.google.com/search?q=wouldn%27t+a+guaranteed+income+have+a+tendency+to+inflate+prices
Bottom line: no evidence to suggest that this (or a host of other "horrors") would happen.
/jordan