numeraire.org
Precise, scholarly and beautiful, understood immediately by anyone with economics training and pleasantly opaque to everyone else. That combination is close to ideal for a name aimed at a professional audience.
The numéraire is the unit of account against which all other values are measured, the anchor making prices comparable. It appears throughout general equilibrium theory, international finance and monetary economics.
The name suits an economics research organisation, a monetary policy institute, a financial data product, an academic publication, or a think tank. On the .org the research and institute readings are strongest, and economics research bodies use that extension almost universally.
Nine letters, four syllables, French in origin and used identically in English economics literature, with no accent required in the domain.
The name is listed for sale. Enquiries welcome.