Praxeology is concerned with the laws of human action. Economics is a subdivision of praxeology, and it’s concerned with the totality of men as both consumer and producer—totality both as the individual and in the aggregate.

The economist, instead of viewing the economy from the standpoint of an individual entrepreneur, must see how money costs are determined and, taking account of all the interrelations in the economy, must recognize that they are determined by final prices reflecting consumer demands and valuations.”

As well as what would’ve happened in the absence of change (e.g., see 13-5g1 The ERE (evenly rotating economy) is not the condition but the effect of thought experiment).

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