Why is analyzing the value of an item not philosophy?

I understand that there’s a difference between price and value, and it’s perfectly reasonable to me that economists would be concerned with understanding price. But as someone not trained in economics, it seems to me that I also see economists talk about value itself. Assessing what gives something value or not seems to be firmly in the philosophy camp.

The entire field of axiology is about value (ethics and aesthetics being the main ones). I could understand the question of the value of an item falling maybe into specifically philosophy of economics, but it still seems firmly rooted in philosophy.

I’m totally open to being wrong tho so yeah 🙂