I don’t think it’s fair to assume that Sarah is confusing nominal with actual prices. Unless you are using specialist terminology I’m unfamiliar with, she probably is using “projected” prices, but I don’t see what makes you think she’s confusing them with anything else.
Specifically, I take her references to the “price” of Scrooge’s apartment to mean something like “the price someone would actually pay if they bought the thing now”. Obviously this is a somewhat nebulous notion, and in particular there’s probably no good way to measure it reliably without substantial risk of changing the very thing you’re trying to measure. But it still seems a reasonable thing to think about.
And, with that notion of price, it’s not true that
no other member of the city has been harmed or lost material wealth
if the price increases—because wealth is a matter of what you can afford to buy, and everyone else in Duckburg just became less able to afford apartments.
I don’t think it’s fair to assume that Sarah is confusing nominal with actual prices. Unless you are using specialist terminology I’m unfamiliar with, she probably is using “projected” prices, but I don’t see what makes you think she’s confusing them with anything else.
Specifically, I take her references to the “price” of Scrooge’s apartment to mean something like “the price someone would actually pay if they bought the thing now”. Obviously this is a somewhat nebulous notion, and in particular there’s probably no good way to measure it reliably without substantial risk of changing the very thing you’re trying to measure. But it still seems a reasonable thing to think about.
And, with that notion of price, it’s not true that
if the price increases—because wealth is a matter of what you can afford to buy, and everyone else in Duckburg just became less able to afford apartments.