A method for parity analysis and remedy calculation is provided. The method uses performance measurements that measure the timeliness, accuracy and availability of the services provided by an incumbent local exchange carrier ("ILEC") to determine whether parity exists between services provided to the ILEC and services provided to a competitive local exchange carrier ("CLEC"). The performance measurements are compared at an appropriate level so that a like-to-like comparison is made. The difference between the average of the ILEC performance measurements and the average of the CLEC performance measurements is computed. An aggregate difference measurement is also computed and is used to determine whether parity exists. If parity does not exist, then a remedy is calculated.