Patent ID: 8812397

Claim:
A method, comprising: a) storing on non-transitory computer readable media, at least one database that is accessible by at least one processor, the at least one database including: i) counterparty information representing each of a plurality of counterparties; ii) weighting information representing a respective utility function for determining one or more of subjective probability and decision states associated with each of the plurality of counterparties; and iii) contractual rule information that includes one or more of conditions, terms and procedures for transacting on behalf of the respective counterparties; b) accessing, by the at least one processor, a respective first account comprising value associated with inventory pledged by at least one respective counterparty; c) accessing, by the at least one processor, a respective second account comprising a margin reserve proportional to at least one of: i) value of each of the counterparties' respective pro rata contribution to accumulated value associated with an inventory pool, and ii) value of the each counterparties' respective pro rata contribution over time; d) accessing, by the at least one processor, a respective third account usable to receive or allocate capital associated with disposition of at least some of the inventory pool; e) receiving, by the at least one processor, information associated with at least one of: i) at least some of the inventory, ii) the margin reserve, and iii) the inventory pool; f) processing, by the at least one processor and based on at least the contractual rule information and the weighting information, the received information to determine an optimized transaction that is among at least two of the plurality of counterparties, and that: i) mitigates collective risk and optimizes collective gain among the at least two of the counterparties, and ii) regards at least one of the first account, the second account and the third account; and g) transacting, by the at least one processor, on behalf of one or more of the at least two counterparties, in accordance with the determined optimized transaction.