A networked computer arrangement and method for preparing entitled
offerings to prospective brokers, buyers and bidders, by establishing an
entitlement schema in an offering and bid collection computer system
based on a contractual arrangement between the brokers, traders, and
offeror; preparing an entitled offering through filtering the a master
list according to the broker schema to include only information for items
to which each broker is allowed to purchase: and, subsequently. but prior
to receiving any bids, presenting via a user interface the entitled
offerings to the prospective brokers such that each broker may review
entitled offerings containing information regarding items being offered
for sale on which the broker is entitled to bid, but are not allowed to
view information regarding items to which each broker is not entitled to
purchase.