Market transaction automatic contracting apparatus and market transaction automatic contracting system

摘要

A market transaction automatic contracting system includes a market transaction automatic contracting apparatus (1) and transaction terminals (A, B ...) connected to the market transaction automatic contracting apparatus by communication circuits. The market transaction automatic contracting apparatus has a transaction conditions storage section (6) for storing transaction conditions set beforehand by participants, an offer/bid setting/distributing device (2) for reading offers (PrA, PrB ...) and bids (PpA, PpB ...) made by the participants, and, with consideration to the transaction conditions, setting and distributing best offers (bPr) and best bids (bPp) most significant for each participant, an offer/bid match determining device (3) for determining whether a match occurred between an offer and a bid, and a contracting device (5) responsive to a match between an offer and a bid for concluding a transaction contract between the parties. The system prevents losses occurring because of transaction errors, reduces transaction costs, speeds up transactions, and greatly improves the efficiency of market transactions.