Oh I had never thought of this or come across this concept! That's a really elegant concept. Of course, in a transaction you're putting in more effort than the money. The time it takes you to go through the purchase, the research, the cost of opportunity of that money... meaning those have to be covered in the cost of the transaction, and therefore the goods must be cheaper than the perceived value by those amounts.

You've sent me down a rabbit hole and I thank you for that. Now I'm off to read about economics 🤓