Gregory's Server[Apologies for getting a bit academic, but I am an ex-Prof]
There is some really good work on the invention of the idea of a single national 'economy' and how this depiction of social life distorts out understanding or politics & economics.
The entity 'the economy' as such doesn't exist other than a manifestation of data collection... but it is treated in a reified manner as it it exists & is subject to a unified influence via policy....
its a system not a thing!