Commerce rather than Economy

I prefer the term commerce over economy when referring to the function system that uses money as its symbolically generalized communication medium. Economy has too many possible meanings, such as the wealth or resources of a country or region, careful management of available resources, thrift, good husbandry, etc.

More on structural coupling

The health system translates the science system’s information into treatment-related information. Science knowledge for its own sake has no value for the health system. In a similar way, engineering is sensitive to (has resonance capacity for) information produced by physics, as well as chemistry and other subsystems of science, but only insofar as this information contributes to engineering as a communication system—i.e., as the information contributes to the autopoiesis of engineering communication.

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