If some are, then all of them that have the same structure at (even if they add layers of "purpose" and effort towards some promised value of technology) - unle

If some are, then all of them that have the same structure at (even if they add layers of "purpose" and effort towards some promised value of technology) - unless perhaps they have a fixed price, preferably with no mechanism or way to game the system to profit on micro-adjustments to maintain price stability.