1. A method of determining the economic impact of business policies, comprising the steps of: a) defining a plurality of players including an associated set of rules defining a possible decision space, a decision-making process tree, an information set, an outcome function, and a payoff function for each player; b) translating the player definitions into codified scripts; and c) executing the codified script wherein the result of the outcome and payoff functions at the end of execution of a script stage determines the economic impact of the business policies defined by the rules.