> Hoarding a good does provide present utility, but that is not the same as consuming it. A non-perishable good like money is not used up, or worn out, or otherwise diminished in utility when it is held.
Yes, and my point is the loss of the interest foregone, that's the opportunity cost that is sacrificed by hoarding.
> Rothbard recognized that too, as you mentioned above when he refers to 3 margins, not 2; and you yourself refer to hoarding as orthogonal, which would not be the case if hoarding and consumption were identical.
I'm not saying that hoarding and consumption is identical, what is consumed is the interest foregone.
> Hoarding is not purely psychological.
Agreed, what I mean is that time preference is manifested in action, and specifically to increase the investment to consumption ratio.
> Hoarding in an exchange economy reduces demand for all other goods and increases the exchange value of the hoarded good. It definitely has effects in the market. This was the point of the 2nd Mises quote in my original reply. Whether those effects are observable is not relevant to economic theory.
Exactly.
> The interest rate here is undefined, not infinite.
Undefined seems a less useful term than infinite here. At least the price is not enough to convince him to engage in trade.
> You can't infer from a refusal to exchange present for future goods that the reason was an insufficient interest rate. Observed interest rates are partially explained by time preference, but they are not identical with it, nor do they measure it. There is always an entrepreneurial component.
Yes.