In Attack on Titans, how exactly was everything paid for? Not once in AoT so far did I ever see any exchanging of currency. For example the Markets:
How do businesses make money then? Is there a type of currency in AoT that they officially use?
For example do they just give away meat for free?
Are Potatoes, Vegetables and cutlery such as plates, bowls and cups free or have I just missed something?
Note: I think food is free for the survey corps or the people that are training to enlist in the army and be able to leave outside of the walls but what about everyone else? Is it free or is it paid for? If it is then whats the currency? Coins, notes (obviously probably not :P) or is there some sort of system where they trade for example their bit of farm land for a lot of cured meat or fish or vegetables for example.
So my question is how exactly are things purchased in AoT?