My attempt (non-native):
The study of public economics (including national economies, economic political sciences or social economies, aka ‘VWL’ for short) is a subfield of economic science.
Almost: “auch” here means that the following terms are synonyms. It’s short for “auch (xyz) genannt” which corresponds nicely with “also known as”.
Thanks!
That is a good example of why Google Translate doesn’t replace a knowledgeable translator.
Google actually translated this well:

The OP image is pre-LLM. LLM are evidently better in this case.
Volkswirtschaft is political economics (as opposed to Betriebswirtschaft, business economics) and adding “Lehre” makes it the study of said subject. So “the study of (political) economics” might make sense. Where does “economics of economics” come from?
Btw, pretty sure this image is at least old enough to drink beer in Germany. Not that I’d advocate the use of machine translation for anything that needs reliable results but I’d be surprised if Google Translate was still THIS bad.
You would be correct. This is what I get today.

Ah yes, “economics is a subfield of evonomic science” is of course still unhelpful at best but hooray, progress has been made.
BWL ist Business Administration. Zumindest heisst der Studiengang so. Volkswirtschaft ist glaub ich einfach nur Economics.
Well yes, there are various terms, depending on context etc. We’re trying to precisely differentiate between different types of “economics” though, only one of which is VWL. The fact that English (more often than German) doesn’t make that difference is the reason why that old translation is so cursed.
@EngineX No, it’s just a horrible translation.
@EngineX “64 words for snow”, but German





