1. A method for performing systematic analysis of consumer behavior data to predict consumer demand via an on-line environment, the method comprising: monitoring behavior of at least one consumer in the on-line environment by at least one server coupled to at least one communication network included in the on-line environment prior to, during and subsequent to at least one sales transaction performed in the on-line environment to generate consumer behavior data; and analyzing the generated consumer behavior data at at least one server coupled to the at least one communication network included in the on-line environment to determine efficacy of a plurality of parameters relating to one or more sales transaction related offerings, wherein the monitoring consumer behavior is performed past completion of the at least one sales transaction performed in the on-line environment and the analyzing is performed based on consumer behavior data generated based on monitored behavior occurring after the at least one sales transaction, wherein the at least one sales transaction involves determining whether it is acceptable to assume some or all of a third party's obligations in the at least one sales transaction.