We used a Samuelson text at the air force Acdemy. The concepts were also in CFA studies. I imagine the concepts are useful in a general way.
The question is if economic theory is useful to those who do not understand economic theory. People can stop their cars smoothly without knowing Newtonian Physics.
Well, I like to complexify things. I'm especially liking inverted U-shaped curves. Put economic knowledge on the horizontal axis and usefulness on the vertical axis. The usefullness follows a bell curve.
The same curve is useful in many endeavors.
