German horse trading (cow trading?)

The operative word in my sentence was/is perceive.

Absolutely correct! A lot of economics is wrong because it does not use “Perceived Value” but instead the “Idealized Value” of the Mythical Homo Economicus.

The Captain

What Is Homo Economicus?

Homo economicus, or “economic man,” is the characterization of man in some economic theories as a rational person who pursues wealth for his own self-interest. The economic man is described as one who avoids unnecessary work by using rational judgment. The assumption that all humans behave in this manner has been a fundamental premise for many economic theories.

However, many behavioral economists disagree with this theory, noting that humans tend to be irrational in their decision making, and anticipating irrational behavior when it comes to man and economic decisions is more useful for economic modeling [emphasis added][

https://www.investopedia.com/ask/answers/08/homo-economicus…