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I have not researched the speaker's positions any further, but given the broad title, the best texts to get an alternative view from the Austrian perspective are most likely to be again Menger's Origins of Money:
This group is for everyone curious about economics, regardless of previous knowledge.
There are various schools of economic thought, of which we find the Vienna School the most convincing, due to its predictive track record and elegant theory. It was founded by Carl Menger (group photo) and most prominently represented by Ludwig von Mises and Friedrich A. Hayek. Of course, critical questions and objections from any other perspective are always welcome.