Interesting systems design approach. I think the UI would benefit greatly from an indicator of which parameter you are directly affecting when you set a condition (as you listed on the page description), so it's easier to understand the relationship between what you are changing and what is subsequently changing because of it. That being said, a good systems design that forms the backbone of an economy-based game doesn't necessarily need to be that accessible to the player. I guess it depends on whether you're trying to build some sort of system architecture or a user-facing interactive tool.