“Then what you find out is, what humans then do is, they create institutions - that's where institutionalism has a tie with Post Keynesianism - they create institutions which limit outcomes, which permit you to control outcomes as long as the society agrees to live by the rules of the game, which are the rules of the institutions. Now, if society rejects those rules, then society breaks down. What are the rules of the game? Well, money is a rule of the economic game. There are lots of human economic arrangements which don't use money. The family unit solves its economic problems, of what and how to produce within the family, without the use of money and without the use of markets. All the 24 hours of the day are either employed or leisure. There's no involuntary unemployment in the family. So you can solve the problem, but it's a different economy. We are talking about a money-using economy, and money is a human institution. You have to ask yourself, why was it created? Why is it so strange? You see, in Lerner, in neoclassical economics, money is a commodity. It's peanuts, with a very high elasticity of production. If people want more money, that creates just as many jobs as if people want goods. Then you have to say to yourself - and this was the question that Milton Friedman asked me in the debate - he says, 'That's nonsense; Davidson says money is not producible. Why are there historical cases where Indians used beads as money? Aren't beads easily producible?”

But not in the Indian economy. They didn't know how to produce them.
quoted in Conversations with Post Keynesians (1995) by J. E. King