Your understanding of how the economy flows and how to maximize profits.
0: You know what money is and what it's used for.
1: Basic economic principles make sense to you. Supply and demand!
2: You know well what goods sell in which kinships.
3: Able to connect one kinship to another with a bit of coin.
4: Intricate knowledge of what each house in each kinship needs and wants.
5: And you understand how to manipulate those things in your favor, financially.
6: Torth comes to you for advice on investment.