<i>...my boss holds a temporary monopoly on my income, whether I eat or not.</i><p>The former is not the latter. Google &quot;savings account&quot;.<p>Transaction costs are, economically, only a monopsony in the regime of small price changes compared to switching costs. I.e., if the cost of finding a new job is $2,000 then your boss can only underpay you by $2,000.<p><i>So I guess what surprises me is they both should be arguing for trials, surely?</i><p>I have no objection to trials. Unfortunately, a lot of BI &quot;trials&quot; are not really trials of BI at all - they are experiments in transferring wealth from outside the trial area into it. E.g., Mincome, the Uganda experiment. These trials certainly show that imperialism makes the empire richer.