That is very different from what "economics" is today.
Oikonomia originally referred to the 'running of a household':
> The earlier term for the discipline was 'political economy', but since the late 19th century, it has commonly been called 'economics'.[22] The term is ultimately derived from Ancient Greek οἰκονομία (oikonomia) which is a term for the "way (nomos) to run a household (oikos)", or in other words the know-how of an οἰκονομικός (oikonomikos), or "household or homestead manager". Derived terms such as "economy" can therefore often mean "frugal" or "thrifty".[23][24][25][26] By extension then, "political economy" was the way to manage a polis or state.
* https://en.wikipedia.org/wiki/Economics#Definitions_of_econo...
* https://en.wikipedia.org/wiki/Oeconomicus (Xenophon)
* https://en.wikipedia.org/wiki/Economics_(Aristotle)
> The term 'economics' was previously known as political 'economy'. This term evolved from the French Mercantilist usage of économie politique, which expanded the notion of economy from the ancient Greek concept of household management, to the national level, as the public administration of state affairs. James Stuart (1767) authored the first book in English with 'political economy' in its title […]
* https://en.wikipedia.org/wiki/Definitions_of_economics
The household here being a company.
But as 'Railway Economy', it does align with the ancient meaning.
Like the word is used today in 'modern' subjects, Green Economy, Circular Economy (which is not Circular Flow), etc.
BTW, welcome, new user.