When an employee and brokerage firm do business this is the resulting contract. It is done in the form of an outline that lists the rights of the firm. This agreement is applied when an employee opts into the New York Stock Exchange.
The Pareto analysis as related to inventory control. There are three categories for the items in question. This is based on their revenue generation, turnover, or value. Typically this is done on the ABC model where an A is the best stock and C is the worse stock. Other terms for this concept are usage value analysis and ABC analysis.