Profit sharing device, program and recording medium

Abstract

A profit distribution device (10) distributes a profit obtained by a carbon credit transaction of a carbon credit-eligible product to a supplier, an intermediary, and a purchaser of the carbon credit-eligible product via an information terminal. The profit distribution device comprises: a storage unit (12) which stores supply information and sales information relating to the carbon credit-eligible product and stores the profit; and a calculation unit (13) which uses the supply information and the sales information to calculate a profit contribution ratio of each of the supplier, the intermediary, and the purchaser, and distributes the profit to the supplier, the intermediary, and the purchaser according to the contribution ratios.

Description

[Technical Field]

[0001] The present disclosure relates to a profit sharing device, a program, and a recording medium.The present disclosure particularly relates to a profit sharing device, a program, and a recording medium for sharing profits from carbon credit trading. [Background technology]

[0002] In recent years, carbon neutrality, which aims to balance greenhouse gas emissions and absorption, has been advocated as an approach to combat global warming. To achieve carbon neutrality, carbon credit trading mechanisms are beginning to be established, which enable greenhouse gas emission reductions to be bought and sold between entities (countries, regions, organizations, corporations, individuals, etc.).

[0003] For example, Patent Document 1 discloses a system for supporting the trading of carbon dioxide emission rights, which is composed of multiple trading terminals and a trading site. For example, Patent Document 2 describes a system in which a carbon credit issuer trades with a purchaser of a carbon credit product through a carbon credit intermediary or the like (see Figure 3A). For example, a system is known in which a supplier of a carbon credit product trades with a carbon credit purchaser through a carbon credit issuer (see Figure 3B). For example, a system is known in which a purchaser of a carbon credit product trades with a carbon credit issuer (see Figure 3C). For example, a system is known in which a supplier of a carbon credit product trades with a carbon credit issuer through a carbon credit intermediary (see Figure 3D). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4620858 [Patent Document 2] Japanese Patent Publication No. 2023-26906 Summary of the Invention [Problem to be solved by the invention]

[0005] Here, in order to conduct carbon credit trading, a sales record of carbon credit products is required. In the trading system shown in Figures 3A to 3D, the supplier of carbon credit products must sell the carbon credit products. In many cases, the supplier of carbon credit products supplies the carbon credit products but does not sell them. Therefore, the trading system shown in Figures 3A to 3D does not match the system of normal commercial transactions, for example, via a retailer. Furthermore, since the system is designed to give profits only to the supplier of the carbon credit products or only to the purchaser of the carbon credit products, it does not take into account the distribution of profits when transactions are conducted via a retailer, etc.

[0006] In view of the above circumstances, an object of the present disclosure is to provide a profit distribution device, a program, and a recording medium that can revitalize carbon credit trading. [Means for solving the problem]

[0007] (1) A profit distribution device according to an embodiment of the present disclosure includes: A profit distribution device that distributes profits obtained through carbon credit trading of carbon credit eligible products to suppliers, intermediaries, and purchasers of the carbon credit eligible products via information terminals, a storage unit that stores supply information and sales information of the carbon credit target product and stores the profit; and a calculation unit that calculates the contribution rate of each of the supplier, the intermediary, and the purchaser to the profit based on the supply information and the sales information, and distributes the profit to the supplier, the intermediary, and the purchaser according to the contribution rate.

[0008] (2) As one embodiment of the present disclosure, in (1), The storage unit further stores processing information, The calculation unit calculates the contribution rate of each of the supplier, the intermediary, and the purchaser to the profit based on the supply information, the sales information, and the processing information.

[0009] (3) As an embodiment of the present disclosure, in (1) or (2), The calculation unit calculates the profit of the supplier as P supplier , the profit of the intermediary is P maker , the purchaser's profit P user , the profit is P carboncredit , raw material profit P material , product profit P product , raw material cost is c material , manufacturing cost is c product , the supplier's set lower limit profit is L supplier , the lower limit profit set by the intermediary is L maker , the buyer's set lower limit profit is L user The contribution rate of the supplier, r, is set so that all the following equations are satisfied. supplier , r is the contribution rate of the intermediary maker and r, the purchaser's contribution rate user Calculate.

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[0010] (4) As an embodiment of the present disclosure, in any one of (1) to (3), The number of suppliers and the number of buyers are each one or more, and the number of intermediaries is zero or more.

[0011] (5) As an embodiment of the present disclosure, in any one of (1) to (4), The profits obtained through the carbon credit trading of the carbon credit target products are profits obtained via a carbon credit intermediary.

[0012] (6) As an embodiment of the present disclosure, in any one of (1) to (5), The computing unit distributes the profits to the supplier, the intermediary, and the purchaser through collaborators who are not directly involved in the transaction of the carbon credit target product.

[0013] (7) A program according to an embodiment of the present disclosure includes: a profit distribution device that distributes profits obtained through carbon credit trading of carbon credit eligible products to suppliers, intermediaries, and purchasers of the carbon credit eligible products via information terminals; storing supply information and sales information of the carbon credit target product; storing said benefit; Calculating the contribution rates of the supplier, the intermediary, and the purchaser to the profit based on the supply information and the sales information; and distributing the profit to the supplier, the intermediary, and the purchaser according to the contribution rate.

[0014] (8) A recording medium according to an embodiment of the present disclosure includes: (7) A recording medium that can be read by the profit distribution device and that stores the program. [Effects of the Invention]

[0015] According to the present disclosure, it is possible to provide a profit sharing device, a program, and a recording medium that can stimulate carbon credit trading. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a profit distribution system including a profit distribution device according to an embodiment of the present disclosure. [Figure 2A] FIG. 2A is a diagram illustrating a carbon credit trading mechanism implemented by the profit sharing system of FIG. [Figure 2B] FIG. 2B is a diagram illustrating a carbon credit trading mechanism implemented by the profit sharing system of FIG. [Figure 2C]FIG. 2C is a diagram illustrating a carbon credit trading mechanism implemented by the profit sharing system of FIG. [Figure 2D] FIG. 2D is a diagram illustrating a carbon credit trading mechanism implemented by the profit sharing system of FIG. [Figure 3A] FIG. 3A is a diagram showing a conventional carbon credit trading system. [Figure 3B] FIG. 3B is a diagram showing a conventional carbon credit trading system. [Figure 3C] FIG. 3C is a diagram showing a conventional carbon credit trading system. [Figure 3D] FIG. 3D is a diagram showing a conventional carbon credit trading system. [Figure 4] FIG. 4 is a diagram illustrating an example of a screen showing the calculation results that the calculation unit causes the information terminal to display. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, a profit distribution device 10 (see FIG. 1) and a program according to an embodiment of the present disclosure will be described with reference to the drawings.

[0018] FIG. 1 is a diagram illustrating a configuration example of a profit distribution system 1 including a profit distribution device 10 according to the present embodiment. FIG. 2A is a diagram illustrating a carbon credit trading mechanism executed by the profit distribution system 1 of FIG. 1. The profit distribution device 10 distributes profits obtained through carbon credit trading of carbon credit eligible products to suppliers, intermediaries, and purchasers of the carbon credit eligible products via an information terminal 70. Hereinafter, suppliers of carbon credit eligible products will be referred to simply as "suppliers." Intermediaries of carbon credit eligible products will be referred to simply as "intermediaries." Purchasers of carbon credit eligible products will be referred to simply as "purchasers." Carbon credit eligible products are goods or services that contribute to achieving carbon neutrality, such as products that reduce greenhouse gas emissions during the manufacturing process. Specific examples of carbon credit eligible products include afforestation, reforestation, soil carbon storage, biochar, land-based biomass storage, and BECCS (Bioenergy with Carbon Capture and Storage). The carbon credit product can also be Direct Air Carbon Capture and Storage (DACCS). The carbon credit product can also be carbonation materials, accelerated weathering, blue carbon, ocean alkalinization, energy conservation, renewable energy, industrial processes, agriculture, waste, automobiles, and housing. As shown in Figure 2A, when a carbon credit product is registered (certified) by a carbon credit issuer and carbon credits are sold, "profits earned from the carbon credit transaction of the carbon credit product" are generated. The profits can be monetary (amount) or monetary value that can be exchanged for money or used to purchase goods like money. Carbon credits function as a permit for greenhouse gas emissions. In other words, carbon credit purchasers can emit greenhouse gases equivalent to the carbon credits they purchase. Here, in drawings and other documents, the carbon credit purchaser and intermediary are referred to as "carbon credit purchaser" and "carbon credit intermediary," respectively, to distinguish them from the purchaser and intermediary of the carbon credit product.

[0019] Here, registration of carbon credit eligible products may be performed not only by carbon credit issuers but also by carbon credit intermediaries. FIG. 2B is a diagram illustrating a carbon credit trading mechanism executed by the profit sharing system 1 of FIG. 1. As shown in FIG. 2B, carbon credit eligible products may be registered (certified) by a carbon credit intermediary, and carbon credits may be sold via the carbon credit issuer. In this carbon credit trading mechanism, profits earned through carbon credit trading of carbon credit eligible products are profits earned via the carbon credit intermediary.

[0020] As shown in FIG. 1, the profit distribution device 10 comprises a communication unit 11, a memory unit 12, and a calculation unit 13. The profit distribution device 10 may be configured as a computer, for example, in terms of hardware configuration. Details of the components of the profit distribution device 10 will be described later. The profit distribution device 10 may not be a single device, but may be configured as multiple devices located in multiple locations and capable of sending and receiving data between them via a network 40. For example, the profit distribution device 10 may be configured as a single computer in terms of hardware configuration, or may be configured as multiple computers connected via a network 40. When configured as multiple computers, the memory unit 12 may be a shared memory accessible by each computer.

[0021] The profit distribution device 10 may constitute a profit distribution system 1 together with an information terminal 70 connected via a network 40. The network 40 is, for example, the Internet. The network 40 may also be configured to include, for example, a local area network (LAN) in part. In this embodiment, the profit distribution system 1 can access a device that manages carbon credit transactions of a carbon credit issuer via the network 40. The profit distribution device 10 obtains "profits earned through carbon credit transactions of carbon credit eligible products" via the network 40. Here, the profit distribution system 1 may be configured to further include a device that manages carbon credit transactions.

[0022] The information terminal 70 is, for example, a computer separate from the profit distribution device 10. In this embodiment, the information terminal 70 is used by each of the supplier, intermediary, and purchaser in the transaction (sale) of the carbon credit eligible product. As shown in FIG. 1, when distinguishing between the information terminals 70 of the supplier, intermediary, and purchaser, they may be referred to as information terminal 70s, information terminal 70m, and information terminal 70u. The information terminal 70 may be, for example, a general-purpose mobile terminal such as a smartphone or tablet. The information terminal 70 may have a display (display unit) so that the supplier, intermediary, and purchaser can check the distributed profits. The information terminal 70 may also have functions similar to those of the communication unit 11, memory unit 12, and calculation unit 13 of the profit distribution device 10, i.e., communication function, memory function, and calculation function. The information terminal 70 may have an input unit through which the supplier, intermediary, and purchaser can input data. In this case, the information terminal 70 may have a touch panel display in which the input unit and display unit are integrated.

[0023] As shown in Figure 2A or 2B, a supplier sells a carbon credit product to an intermediary. The supplier is, for example, a manufacturer of the carbon credit product. The intermediary is, for example, a processor or seller of the carbon credit product. A specific example of a seller is a retailer. The intermediary sells the carbon credit product to a buyer. The buyer is, for example, a user of the carbon credit product or a processed product thereof. Here, there are one or more suppliers and buyers (one or more entities). There can be multiple suppliers and buyers. Also, there can be zero or more intermediaries (zero or one or more entities). There can be no intermediary, or there can be multiple intermediaries.

[0024] The components of the profit distribution device 10 will be described in detail below. The communication unit 11 is configured to include one or more communication modules connected to the network 40. The communication unit 11 may include a communication module compatible with mobile communication standards such as 4G (4th Generation) and 5G (5th Generation). The communication unit 11 may also include a communication module compatible with a wireless or wired LAN standard.

[0025] The storage unit 12 is one or more memories. The memory may be, for example, a semiconductor memory, a magnetic memory, an optical memory, or the like, but is not limited to these, and may be any memory. The storage unit 12 is, for example, built into the profit distribution device 10, but may also be configured to be externally accessed by the profit distribution device 10 via any interface.

[0026] The storage unit 12 stores various data used in various calculations performed by the calculation unit 13. The storage unit 12 may also store results and intermediate data of various calculations performed by the calculation unit 13.

[0027] In this embodiment, the storage unit 12 stores supply information and sales information of the carbon credit eligible product acquired via the communication unit 11. The storage unit 12 also stores profits (Pcarboncredit ) is stored. Furthermore, when processing information of the carbon credit eligible product is acquired via the communication unit 11, the storage unit 12 further stores the processing information.

[0028] Supply information is obtained from the supplier's information terminal 70s, and the raw material cost (c material ) Sales information includes raw material profit (P material ) and product profit (P product ) The raw material profit is obtained from the information terminal 70s of the supplier or the information terminal 70m of the intermediary. The product profit is obtained from the information terminal 70m of the intermediary or the information terminal 70u of the purchaser. The processing information is obtained from the information terminal 70m of the intermediary, and the manufacturing cost (c product ) Processing information is acquired when the intermediary is a processor. For example, if the intermediary is a seller who does not process carbon credit eligible products, processing information is not acquired.

[0029] In this embodiment, the storage unit 12 stores the lower limit of profit (set lower limit profit) set by the supplier, intermediary, and purchaser before the distribution of profit obtained by the carbon credit trading of the carbon credit target product. supplier ) is input in advance by the supplier into the information terminal 70s and can be obtained from the information terminal 70s. maker ) is input in advance by the intermediary into the information terminal 70m and can be obtained from the information terminal 70m. user) is input in advance by the purchaser into the information terminal 70u and can be obtained from the information terminal 70u. The set minimum profit limit may be set as a positive value, or as zero or a negative value when no profit is required. For example, suppliers and intermediaries may set a positive value taking into account only sales profits. For example, suppliers may set a negative value taking into account disposal fees in the event that a carbon credit eligible product cannot be sold. Furthermore, the set minimum profit limit of a purchaser is generally a negative value, but for example, an environmentally conscious purchaser, i.e., a purchaser who is more interested in contributing to achieving carbon neutrality than profits, may set a negative value taking into account the price difference with products not eligible for carbon credits.

[0030] The calculation unit 13 may be configured to include one or more processors. The processor may be, for example, a general-purpose processor or a dedicated processor specialized for a specific process, but is not limited to these and may be any processor. The calculation unit 13 may have a function as a control unit that controls the overall operation of the profit distribution device 10. For example, the calculation unit 13 may obtain the above-mentioned supply information, sales information, processing information, etc. from the information terminal 70 and store them in the memory unit 12.

[0031] The calculation unit 13 calculates the contribution rate of each of the supplier, intermediary, and purchaser to the profit based on the supply information, sales information, and processing information. In this embodiment, the calculation unit 13 calculates the contribution rate of the supplier, r supplier , the contribution rate of the intermediary, r maker and the buyer's contribution rate r user Calculate.

[0032]

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[0033] where P supplier is the supplier's profit. P maker is the intermediary's profit. P useris the buyer's profit. The last equation shows that the sum of the supplier's contribution rate, the intermediary's contribution rate, and the buyer's contribution rate is 1. Also, as mentioned above, the profit obtained from carbon credit trading is P carboncredit , raw material profit is P material , product profit is P product The raw material cost is c material , manufacturing cost is c product In addition, the supplier's minimum profit is L supplier , the intermediary's set lower limit profit is L maker , the buyer's set lower limit profit is L user The calculation unit 13 calculates the contribution rates of the supplier, intermediary, and purchaser so that all equations are satisfied, thereby appropriately determining the contribution rates while satisfying the respective minimum profit limits for the supplier, intermediary, and purchaser. The contribution rates can be set to values ​​that do not satisfy the minimum profit limits in calculations. However, since ensuring economic rationality in transactions is the norm, it is preferable to set the contribution rates so that the respective minimum profit limits for the supplier, intermediary, and purchaser are satisfied. Furthermore, profits are also distributed to intermediaries (processors or sellers of carbon credit-eligible products), which were not considered in conventional technology, according to their contribution rates. By distributing profits to all entities involved in the sale of carbon credit-eligible products in this way, it is possible to increase the willingness of all entities to engage in carbon credit trading, thereby revitalizing carbon credit trading.

[0034] As mentioned above, the intermediary may be a seller who does not perform processing. In this case, processing information may not be obtained. In addition, the manufacturing cost (c product ) may be set to zero. That is, the calculation unit 13 calculates the contribution rate of each of the supplier, intermediary, and purchaser to the profit based on at least the supply information and sales information, and distributes the profit to the supplier, intermediary, and purchaser according to the contribution rate. The calculation unit 13 may output the contribution rate of each of the supplier, intermediary, and purchaser, or the distributed profit obtained by multiplying the profit by the contribution rate, to each information terminal 70.

[0035] Here, suppliers, intermediaries, and purchasers may be able to sell carbon credit-eligible products with the cooperation of collaborators who are not directly involved in the transaction. Examples of collaborators include trading companies, agents, and other parties who mediate sales through contracts but are not processors or sellers (i.e., who do not directly process or sell products). In this type of sales format, the calculation unit 13 may distribute profits to suppliers, intermediaries, and purchasers through collaborators who are not directly involved in the transaction. In other words, the calculation unit 13 may distribute profits to suppliers, intermediaries, and purchasers not only in the above-mentioned manner in which the calculation unit 13 distributes profits directly, but also in the manner in which the calculation unit 13 distributes profits to suppliers, intermediaries, and purchasers via collaborators. Figures 2C and 2D show a carbon credit trading system in which profits are distributed to suppliers, intermediaries, and purchasers via collaborators. For example, the calculation unit 13 may calculate a contribution rate so that profits are distributed from the supplier to the intermediaries and purchasers via collaborators, and distribute profits according to the contribution rate. For example, the calculation unit 13 may calculate a contribution rate so that profits are distributed from the intermediary to the supplier and the purchaser via the collaborator, and distribute the profits according to the contribution rate. For example, the calculation unit 13 may calculate a contribution rate so that profits are distributed from the purchaser to the supplier and the intermediary via the collaborator, and distribute the profits according to the contribution rate. For example, the calculation unit 13 may calculate a contribution rate so that profits are distributed from the supplier and the intermediary to the purchaser via the collaborator, and distribute the profits according to the contribution rate. Here, when profits are distributed via the collaborator, a portion of the profits may also be distributed to the collaborator as a fee.

[0036] Here, the profit distribution device 10 may have the following software configuration: One or more programs used to control the operation of the profit distribution device 10 are stored in the storage unit 12 or another storage medium readable by the profit distribution device 10. When the programs stored in the storage unit 12 or another storage medium are read by the processor of the calculation unit 13, the processor may function to execute the profit distribution process described above. That is, the programs may cause the profit distribution device 10 to store supply information and sales information of the carbon credit eligible product and to store the profit. The programs may then cause the profit distribution device 10 to calculate the contribution rates of the supplier, intermediary, and purchaser to the profit based on the supply information and sales information, and to distribute the profit to the supplier, intermediary, and purchaser according to the contribution rates.

[0037] As described above, the profit distribution device 10 and the program according to this embodiment can activate carbon credit trading with the above configuration.

[0038] Although the embodiments of the present disclosure have been described based on the drawings and examples, it should be noted that those skilled in the art would easily be able to make various modifications or alterations based on the present disclosure. Therefore, it should be noted that these modifications and alterations are included within the scope of the present disclosure. For example, the functions included in each component or step can be rearranged so as not to cause logical inconsistencies, and multiple components or steps can be combined or divided into one. The embodiments of the present disclosure can also be realized as a storage medium (non-transitory computer-readable storage medium) on which a program executed by a processor included in an apparatus is recorded. It should be understood that these are also included within the scope of the present disclosure.

[0039] In the above embodiment, the profit distribution device 10 is described as being realized by a computer or the like different from the information terminal 70, but the profit distribution device 10 may be realized by one of the information terminals 70. In other words, the above processing performed by the communication unit 11, memory unit 12, and calculation unit 13 of the profit distribution device 10 may be realized by the communication function, memory function, and calculation function of the information terminal 70. As an example, the supplier's information terminal 70s may perform the profit distribution processing. As an example, the intermediary's information terminal 70m may perform the profit distribution processing. Also, as an example, the purchaser's information terminal 70u may perform the profit distribution processing. In this case, the profit distribution system 1 may be composed of only multiple information terminals 70.

[0040] In the above embodiment, the calculation unit 13 of the profit distribution device 10 executes all calculations of the profit distribution, but the calculation may be shared with the information terminal 70. For example, the calculation unit 13 may calculate the supplier's profit (P supplier ), intermediary profits (P maker ) and the purchaser's profit (P user ) and output them to the information terminal 70s, the information terminal 70m, and the information terminal 70u. Then, each of the information terminals 70s, 70m, and 70u may calculate the set lower limit profit (L supplier ), the intermediary's set lower limit profit (L maker ), the buyer's minimum profit (L user ) and output the comparison result to the profit distribution device 10. In this case, the processing load of the profit distribution device 10 can be reduced.

[0041] The calculation unit 13 may also calculate profit sharing, store the calculation results in the storage unit 12, and display the profit sharing history (e.g., changes over time) on the information terminal 70 via the communication unit 11 and the network 40 based on the stored information. The calculation unit 13 may also calculate not only the profit sharing history but also the sales performance of the carbon credit eligible product converted into tons of carbon dioxide (t-CO2) and output these as calculation results together with the profit sharing history. FIG. 4 illustrates an example of a screen displaying the calculation results that the calculation unit 13 displays on the information terminal 70. In the example of FIG. 4, the profit sharing history and sales performance history are displayed in chronological order. A year-on-year comparison (YoY) is also shown. Displaying such a display on the information terminal 70 may reaffirm suppliers, intermediaries, and purchasers of carbon credit eligible products' awareness of their contribution to carbon neutrality, further stimulating carbon credit trading. [Explanation of symbols]

[0042] 1. Profit sharing system 10 Profit sharing device 11 Communications Department 12 Storage section 13 Arithmetic section 40 Network 70, 70s, 70m, 70u information terminal

Claims

1. A profit distribution device that distributes profits obtained through carbon credit trading of carbon credit eligible products to suppliers, intermediaries, and purchasers of the carbon credit eligible products via information terminals, a storage unit that stores supply information and sales information of the carbon credit target product and stores the profit; a calculation unit that calculates the contribution rates of the supplier, the intermediary, and the purchaser to the profit based on the supply information and the sales information, and distributes the profit to the supplier, the intermediary, and the purchaser in accordance with the contribution rates; The storage unit further stores processing information, the calculation unit calculates the contribution rate of each of the supplier, the intermediary, and the purchaser to the profit based on the supply information, the sales information, and the processing information; The calculation unit calculates the supplier's contribution rate r supplier, the intermediary's contribution rate r maker, and the buyer's contribution rate r user so that all of the following equations are satisfied, using the supplier's profit as P supplier, the intermediary's profit as P maker, the buyer's profit as P user, the profit as P carboncredit, the raw material profit included in the sales information as P material, the product profit included in the sales information as P product, the raw material cost included in the supply information as c material, the manufacturing cost included in the processing information as c product, the supplier's set lower limit profit as L supplier, the intermediary's set lower limit profit as L maker, and the buyer's set lower limit profit as L user. [Equation 1]

2. The profit sharing device according to claim 1 , wherein the number of said suppliers and said purchasers is one or more, and the number of said intermediaries is zero or more.

3. a profit distribution device that distributes profits obtained through carbon credit trading of carbon credit eligible products to suppliers, intermediaries, and purchasers of the carbon credit eligible products via information terminals; storing supply information and sales information of the carbon credit target product; storing said benefit; Calculating contribution rates of the supplier, the intermediary, and the purchaser to the profit based on the supply information and the sales information; Distributing the profit among the supplier, the intermediary, and the purchaser according to the contribution rate; Further storing processing information; Calculating the contribution rates of the supplier, the intermediary, and the purchaser to the profit based on the supply information, the sales information, and the processing information; The program executes the following: calculating r supplier, the contribution rate of the supplier, r maker, the contribution rate of the intermediary, and r user, the contribution rate of the buyer, so that all of the following equations are satisfied, where P supplier is the profit of the intermediary, P maker is the profit of the buyer, P user is the profit of the buyer, P carboncredit is the profit, P material is the raw material profit included in the sales information, P product is the product profit included in the sales information, c material is the raw material cost included in the supply information, c product is the manufacturing cost included in the processing information, L supplier is the set lower limit profit of the supplier, L maker is the set lower limit profit of the intermediary, and L user is the set lower limit profit of the buyer. [Equation 2]

4. A recording medium readable by the profit distribution device, on which the program according to claim 3 is recorded.

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