Not sure why it gave you fits. Been there done that. While both economics and engineering have equations and formulas for calculating stresses, only engineering must fully appreciate the variables of the human independence of thought, as well as a broad application of materials... which results in the so called misconception of "over engineering". The various fields of economics consider humans as predictable, as is stated in such views as humans as selfish and/or rational, (Austrian, Neoclassists, Marxists, Classical). Except for the Austrian view, the others consider the world as predictable. To me, economics is strangely intriguing, as it diverges radically from my background. Economists prefer to think of themselves as a "science", which baffles me... considering the track record of predicting recessions that never happened, while missing the recessions that did.