In Econ 101 you learn there's different pricing models. Goods on a shelf, like peanut butter, are called commodities and will obey a commodity pricing model.

In Econ 101 you learn there's different pricing models. Goods on a shelf, like peanut butter, are called commodities and will obey a commodity pricing model. Anything else? Won't. They will have different pricing models often better fitting an auction model, of which there are several. For example, rare art. Second-hand or used goods. Employee salaries. For any skilled employee, there is no such thing as a single fair price for their salary because there's such a right-place-at-the-right-time effect. You can look up Timofey Mozgov, a bad NBA player who lucked into a ridiculous $64 million overpay contract he worked less than 50% of, because he happened to become a free agent during a summer the budgets went up and everybody was getting overpaid.