I think the key word there is episodic; i.e., that the work wasn't consistent, and thus the "few days' wages" were possibly more valuable.
But I haven't read the study, so I could be wrong.
But I haven't read the study, so I could be wrong.
Money might be nice in such a situation, but if you're not going to starve to death or freeze to death and you don't have 300k$ in medical debt suffocating you, it might not be as valuable as a couple days extra pay is to a poverty-line worker in the US.