Economics Skill
Defaults: IQ-6, Market Analysis-5, or Merchant-6
This is the study of the theory of money, markets, and financial systems. It is mainly an academic skill, but a successful skill roll allows you to predict the economic impact of events in the game world: the assassination of a political figure, the demolition of a power plant, the introduction of a new invention, etc. Adventurers with intelligence and military backgrounds frequently have some training in this skill.