Potter Cash: 1,000 Galleons in Time and Space

[a_svirn]

No: HPFGUIDX 162027

I am kind of butting into this thread, so sorry if it was discussed 
already, but do we have any idea how does Gringotts work at all? I 
mean, in real life money always works to make more money, but how does 
it work in the WW? We don't hear anything about loans, mortgages, 
venture capitalists and so on. The twins called Harry's contribution "a 
loan", but in fact, it wasn't, and applying for a Gringotts's loan 
didn't seem to be an option. So how do the Goblins manage to stay 
afloat? To quote Antonio "is their gold and silver ewes and rams"? 
a_svirn