As with most fields a lot of it relates back to the first principles of the field. A lot of it is around what the best way to classify, measure, and show an eco

As with most fields a lot of it relates back to the first principles of the field. A lot of it is around what the best way to classify, measure, and show an economic transaction. One example that comes to mind is the development of Activity Based Costing in the late '80s as an improvement on traditional cost accounting.