In Flat Black’s native RPG system, ForeSight, the prices in the equipment lists &c. are expressed in “Standard Value Units”. The name is a reference to Jack Vance’s “Oikumene” setting, and in ForeSight’s standard setting ForeScene there was a currency denominated in SVU¹. For reasons of convenience I gave the Imperial crown in Flat Black a purchasing power of 1 SVU in Imperial Direct Jurisdiction and the Suite, but because I know a bit about economics I supposed that the various colonies would each have their own currencies (Human Space is not an optimal single-currency area) and that an Imperial crown would have a significantly higher purchasing power in less-developed economies.
Now I’m writing some colony descriptions in a standard format, and I want to include entries in a table that will indicate the colony’s mean income in real and nominal terms and the value of its currency unit in exchange and in purchasing power. The Imperial crown will do perfectly well as the numeraire of nominal income and exchange value. As for real income and purchasing power, I plan to use a standard value unit with purchasing power equal to the purchasing power that ₢1 has in IDJ.
For the moment I am using the default currency unit symbol ¤ to indicate values in SVU, but I’m worried that that might be confusing. What do you think of my using ㏜ as a symbol for “standard value”? It’s not likely to be confused for sieverts in a financial context.
¹ I railled against the SVU in ForeScene while the manuscript was in preparation. For my troubles I got written off as “an economics-minded playtester” rather than as, you know, an economist.