Because it deals with living, human, systems, (which are self-referencing and self-organizing) economics cannot rely on repeatable empirical experiments. It must use extremely sound reasoning. I will address important aspects of that reasoning in this section of the Fundamentals.
The foundation of economic reasoning consists of Guiding Ideas. The links below will take you to pages that will explain these ideas more fully.
Basic premises upon which to base economic theory.
Reasoning based on sound principles that explains past systemic behavior and provides insight into future systemic behavior.
Philosophical values that support free markets, beginning with: