The distinction between real prices and ideal prices is a distinction between actual prices paid for products, services, assets and labour (the net amount of money that actually changes hands), and computed prices which are not actually charged or paid in market trade, although they may facilitate trade. The difference is between actual prices paid, and information about possible, potential or likely prices, or "average" price levels.
This distinction should not be confused with the difference between "nominal prices" (current-value) and "real prices" (adjusted for price inflation, and/or tax and/or ancillary charges). It is more similar to, though not identical with, the distinction between "theoretical value" and "market price" in financial economics.
