Abstract: The invention relates to a modular system for assembling a hollow structure. The system comprises segments for assembly into modules to assemble hollow structures such as culverts and water-retention systems. The segments comprise opposing sidewalls and a deck spanning said sidewalls having opposing sides and opposing ends which are assembled in inverted, vertically aligned relation to each other to form a hollow module. The segments engage each other with mutually engaging three dimensional structures that prevent lateral and vertical slippage between the segments. The segments may include half-columns that meet along the plane of engagement to form full-height load bearing columns in the assembled structure.

Abstract: A method for transacting exchanges of agricultural products involves observing the price of an agricultural product at observation points over a period of time. In one embodiment, a maximum price is specified. For each of the observation points, the maximum price is selected when the observed price is greater than the maximum price, and the observed price is selected when the observed price is less than the maximum price. A price is calculated for a quantity of the agricultural product based on the average of the selected prices and a premium. Individual contracts can be aggregated to reach more acceptable trading quantities and intervals, enabling participation of a derivative hedging products service provider and intermediate parties such as elevators and elevator services companies. Aggregation can be carried out manually or automatically, and configured to support anonymity of various parties in the transaction chain.

Abstract: A method for transacting transfers of commodities involves observing the price of a commodity at several observation points over a period of time. In one embodiment, a maximum price is specified. For each observation point, the maximum price is selected in the event the observed price is greater than the maximum price, or the observed price is selected in the event the observed price is less than the maximum price. The price for a quantity of the commodity then is calculated based on the average of the selected prices and a premium. Individual contracts can be aggregated to reach more acceptable trading quantities and intervals, enabling participation of a derivative hedging products service provider and intermediate parties such as resellers and reseller services companies. Aggregation can be carried out manually or automatically, and configured to support anonymity of various parties in the transaction chain.

Abstract: A method for transacting exchanges of agricultural products involves observing the price of an agricultural product at observation points over a period of time. In one embodiment, a maximum price is specified. For each of the observation points, the maximum price is selected when the observed price is greater than the maximum price, and the observed price is selected when the observed price is less than the maximum price. A price is calculated for a quantity of the agricultural product based on the average of the selected prices and a premium. Individual contracts can be aggregated to reach more acceptable trading quantities and intervals, enabling participation of a derivative hedging products service provider and intermediate parties such as elevators and elevator services companies. Aggregation can be carried out manually or automatically, and configured to support anonymity of various parties in the transaction chain.

Abstract: A method for transacting transfers of commodities involves observing the price of a commodity at several observation points over a period of time. In one embodiment, a maximum price is specified. For each observation point, the maximum price is selected in the event the observed price is greater than the maximum price, or the observed price is selected in the event the observed price is less than the maximum price. The price for a quantity of the commodity then is calculated based on the average of the selected prices and a premium. Individual contracts can be aggregated to reach more acceptable trading quantities and intervals, enabling participation of a derivative hedging products service provider and intermediate parties such as resellers and reseller services companies. Aggregation can be carried out manually or automatically, and configured to support anonymity of various parties in the transaction chain.

Abstract: A method for transacting transfers of commodities includes setting a first price for a first quantity of a commodity based on an average price observed during a period of time and either a premium or discount to the average price. A second price is set for a second quantity of a commodity based on a price determined at a future date. The second price does not exceed a maximum price in the event a premium applies to the first quantity, or a minimum price in the event a discount applies to the first quantity. The first quantity and the second quantity are delivered from a seller to a buyer, and the seller is paid a sum based on the first price, the premium or discount, as applicable, and the second price.

Abstract: A method for transacting exchanges of agricultural products, such as crop output, livestock, and animal produce, includes setting a first price for a first quantity of agricultural product based on an average price observed during a period of time and either a premium or discount to the average price. A second price is set for a second quantity of an agricultural product based on a price determined at a future date. The second price does not exceed a maximum price in the event a premium applies to the first quantity, or a minimum price in the event a discount applies to the first quantity. The first quantity and the second quantity are delivered from a seller to a buyer, and the seller is paid a sum based on the first price, the premium or discount, as applicable, and the second price.