PROBLEM TO BE SOLVED: To eliminate or reduce the market hedge risk in a case such that a market price becomes below a determined price or is predicted to be below it during a contract period in future commodity trading.;SOLUTION: When a future commodity trading contract is concluded between a manager (seller) and a customer, the contract includes provisions saying that the customer side can conclude a trading contract of future commodity by a determined price at a specific point of time with the manager (seller) side by an IT terminal through an IT server provided on the manager (seller) side, the customer can cancel the determined price provision of the contract to the manager (seller) side within the contract period at any time through the IT terminal or other electric lines, and when the market price at the time of cancellation is below the determined price, the loss is born by the customer side. According to this, the risk by market slide in the future trading market is eliminated or reduced.;COPYRIGHT: (C)2009,JPO&INPIT
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