
To study the economies of the ancient world, one must begin by discarding many premises that seemed self-evident before Sir Moses Finley showed that they were useless or misleading. Available again, with a new foreword by Ian Morris, these sagacious, fertile, and occasionally combative essays are just as electrifying today as when Finley first wrote them.
https://www.amazon.com/Civilization-Capitalism-15th-18th-Cen...
https://www.amazon.com/Wheels-Commerce-Civilization-Capitali...
https://www.amazon.com/Perspective-World-Civilization-Capita...
I strongly recommend these books.
If you're interest is more about the classical Western period, I recommend:
https://www.amazon.com/Ancient-Economy-Sather-Classical-Lect...
This is one of those things Marx really nailed with the idea that a "mode" of production wasn't just determined by labor and material but that it is also determined by the relationships between the participants in a political economy or the "relations" of production.
The trend in economic history has been the opposite of what you say. In the 70s it was fashionable to emphasize how different ancient economies were from modern. See for example Moses Finley's Ancient Economy. The trend of recent scholarship has been to show that things in the old days are more like today than we thought. It's made the Industrial Revolution harder to explain, because all of the institutional details that seemed like they were important get pushed further and further back in time.
Anyway, I thought the quote was odd because it was such a large worry for such a small point. It's interesting that standardized weights and measures didn't require a central government. I have trouble believing that this would radically change anyone's perception of the trade-offs between governments and markets, but the authors are clearly worried that their research is going to give ammunition to someone they don't like.
(Also, you spotted that Rome was a slave society, but failed to make the obvious conclusion that slavery precludes free exchange of labour!)
Government took only 5%.
https://en.wikipedia.org/wiki/Roman_economy#GDP_and_income_d... In the Scheidel–Friesen economic model, the total annual income generated by the Empire is placed at nearly 20 billion HS, with about 5 percent extracted by central and local government.
