Using labor credits as a medium of exchange seems similar in some ways to the notion debt and credit appeared historically before money?
Debt: The First 5000 Years - Wikipedia
"
Debt: The First 5,000 Years is a book by
anthropologist David Graeber published in 2011...."
"The author claims that
debt and
credit historically appeared before
money, which itself appeared before
barter. This is the opposite of the narrative given in standard economics texts dating back to
Adam Smith.
"To support this, he cites numerous historical, ethnographic and archaeological studies. He also claims that the standard economics texts cite no evidence for suggesting that barter came before money, credit and debt, and he has seen no credible reports suggesting such.
"The primary theme of the book is that excessive popular indebtedness has sometimes led to unrest, insurrection, and revolt.
"He argues that credit systems originally developed as means of account long before the advent of
coinage, which appeared around 600 BC.
"Credit can still be seen operating in non-monetary economies.
"Barter, on the other hand, seems primarily to have been used for limited exchanges between different societies that had infrequent contact and often were in a context of
ritualized warfare."
I'm assuming the transition into a moneyless communist society would eliminate the existence of private fortunes and ritualized warfare?