JP2008305300A - Commercial transaction amount determination system, commercial transaction amount determining method, and program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a seller and a purchaser to easily recognize the proper sales transaction amount of merchandise and a service. <P>SOLUTION: This commercial transaction amount determination system is provided with: seller side information managing means 5, 25 for associating a desired sales price with evidence information to register them and outputting the desired sales price and the evidence information in response to a request when a desired sales price is input together the evidence information for specifying a seller who discloses the desired sales price of merchandise or a service, and purchaser side information managing means 6, 26 for associating a desired purchase price with personal information to register them and outputting the desired purchase price and the personal information in response to a request when a purchaser who purchases the merchandise or the service inputs the desired purchase price of the purchaser together with personal information of the purchaser. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a commercial transaction amount determination system, a commercial transaction amount determination method, and a program for determining an appropriate sales transaction amount of goods or services.

  In recent years, with the development of communication networks represented by the Internet, commercial transactions of goods or services have been widely conducted using this communication network, and various systems and methods for mediating this commercial transaction have been proposed. Yes.

Conventional systems and methods of this type include, for example, websites that compare and display prices offered by sellers of various products or services (for example, see Non-Patent Document 1), and collective estimates from multiple sellers. Take a website and compare prices (see Non-Patent Document 2, for example).
Price.com <URL: http://www.kakaku.com/> Comparison.com <URL: http://www.hikaku.com/>

  However, the conventional systems and methods described above have a problem in that it is difficult for sellers and buyers to grasp the appropriate transaction amount of the product or service, and thus it is difficult to increase the efficiency and efficiency of commercial transactions. .

  Further, in the system and method disclosed in Non-Patent Document 1 described above, the price of goods or services displayed on the website is the price unilaterally presented by the seller side, so the buyer's request is sufficiently satisfied. There was also a problem that it could not be satisfied.

  Furthermore, in the electronic commerce apparatus and electronic commerce method disclosed in Non-Patent Document 2 described above, it is necessary for the buyer side to review responses (estimates) from a plurality of seller sides, and to compare and examine prices, etc. It took time and effort.

  The present invention has been made in order to solve the above-described problems, and enables sellers and buyers to easily grasp the appropriate transaction amount of goods and services, and promotes the activation and efficiency of commercial transactions. It is an object of the present invention to provide a commercial transaction amount determination system, a commercial transaction amount determination method, and a program thereof that can satisfy both the buyer side and the seller side requirements.

  In order to achieve the above-described object, the present invention provides a commercial transaction amount determination system for determining an appropriate sales transaction amount of a product or service between a seller and a buyer of the product or service, When the desired sales price is input together with evidence information for identifying the seller who has announced the desired sales price, the desired sales price is registered in association with the evidence information, and the desired sales price is requested. When the buyer's desired purchase price is input together with the buyer's personal information together with the seller's information management means for outputting price and evidence information, and the buyer who purchases the goods or services, the personal information And a buyer side information management means for outputting the desired purchase price and personal information in response to a request. And features.

  The seller-side information management means registers the desired sales price in association with the number of sellers who wish to sell at the same price as the desired sales price, and the desired sales price and the number of sellers as required. And the buyer side information management means registers the desired purchase price in association with the number of buyers desired to purchase at the same price as the desired purchase price, and the desired purchase price and the buyer upon request. May be output.

  Further, the buyer side information management means, when the buyer's desired purchase price is input together with evidence information for identifying the seller by the buyer who purchases the goods or services, the buyer's management screen on the buyer's management screen May be configured so that the desired purchase price is posted together with the conditions of goods or services desired to be purchased, and the seller can input the bid price.

  In addition, the present invention is a commercial transaction amount determination system for determining an appropriate sales transaction amount of a product or service between a seller and a buyer of the product or service, wherein the seller first sells the product or service. When the quantity of the goods or services sold at the initial sales desired price and the sales expiration date are entered together with the initial sales desired price, the initial sales desired price is registered in association with the quantity and the sales expiration date, and a request is made. Output the initial sales desired price and quantity and the expiration date of the sale, and the quantity of the product or service to be sold at the resale desired price together with the resale desired price by the buyer who purchased the product or service at the initial desired sales price Is entered in association with the quantity and the resale is requested upon request. When the seller-side information management means for outputting the desired price and quantity and the buyer who purchases the product or service input the desired price together with the desired price, the purchase request And a buyer side information management means for registering the price in association with the quantity and outputting the desired purchase price and quantity upon request.

  The seller side information management means may allow the seller to change the initial desired sales price or the desired resale price by the buyer during the valid trading period.

  Furthermore, the present invention is a commercial transaction amount determination method for determining an appropriate sales transaction amount of a product or service between a seller and a buyer of the product or service, and discloses a desired sales price of the product or service. When the desired sales price is input together with the evidence information for identifying the seller, the desired sales price is registered in association with the evidence information, and the desired sales price and the evidence information are output upon request. And when the buyer who purchases the goods or services inputs the buyer's desired purchase price together with the buyer's personal information, the desired purchase price is registered in association with the personal information and upon request. And outputting the desired purchase price and personal information.

  Furthermore, the present invention provides a commercial transaction amount determination method for determining an appropriate sales transaction amount of a product or service between a seller and a buyer of the product or service, the seller selling the product or service first. When the quantity of the goods or services sold at the initial sales desired price and the purchase expiration date are entered together with the initial sale desired price, the initial sale desired price is registered in association with the quantity and the purchase expiration date; Outputting the initial desired price and quantity and the expiration date of purchase as requested, and the product sold at the desired resale price together with the desired resale price by a buyer who has purchased the goods or services at the initial desired price or When the service quantity is entered, the desired resale price is registered in association with the quantity and The step of outputting the desired resale price and quantity, and the purchase wish when the purchaser purchases the product or service and the quantity of the product or service purchased at the desired purchase price. And registering the price in association with the quantity and outputting the desired purchase price and quantity in response to a request.

  Furthermore, the present invention is a commercial transaction amount determination program for causing a computer to execute the above steps.

  According to the present invention, since a seller or a buyer can easily grasp an appropriate sales transaction amount of goods or services, activation and efficiency of commercial transactions can be promoted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, an air ticket will be described as an example of a product or service that is the object of a commercial transaction.

  First, a transaction amount determination system according to a first embodiment of the present invention will be described with reference to the drawings. Here, FIG. 1 is a block diagram showing the overall configuration of the commercial transaction amount determination system according to the first embodiment of the present invention.

  This commercial transaction amount determination system includes an electronic commerce device 1 that performs mediation processing for airline ticket sales transactions, a seller-side terminal 3 and a buyer-side terminal that are connected to the electronic commerce device 1 via a communication network 2 such as the Internet. The electronic commerce apparatus 1 is configured to exhibit a predetermined function by installing a commercial transaction amount determination program via a storage medium such as a CD-ROM.

  The electronic commerce apparatus 1 associates the seller's desired sales price with the evidence information (for example, the URL of the seller's website, an advertisement flyer, etc.) for identifying the seller who has announced the desired price of the ticket. And registering the buyer's desired purchase price in association with the personal information of the buyer who purchases the air ticket, and registering the buyer's desired price for purchase. The buyer side information management unit 6 that outputs the desired purchase price and personal information according to the information, and stores various information such as the evidence information, the seller's desired sales price, the buyer's personal information, the buyer's desired purchase price, etc. The information storage unit 7 is configured to be configured.

  Next, a processing procedure of the transaction amount determination system according to the embodiment of the present invention will be described mainly with reference to FIGS. Here, FIG. 2 is a flowchart showing a processing procedure of the transaction amount determination system according to the first embodiment of the present invention. FIG. 3 is a diagram showing an input screen for searching for an air ticket in the transaction amount determination system. 4 is a diagram showing a display screen of a list of air ticket in the commerce transaction amount determination system, FIG. 5 is a diagram showing a display screen of a commercial transaction table of air ticket in the commerce transaction amount determination system, and FIG. FIG. 7 is a diagram showing an input screen for a desired purchase price of a ticket. FIG. 7 is a diagram showing an input screen for a desired purchase price of an air ticket in the same transaction value determination system.

  First, the electronic commerce apparatus 1 is accessed from the terminal 3 on the seller side via the communication network 2 and, as shown in FIG. 3, the departure date, departure city, destination area, direction (country) of the ticket that the seller desires to sell. Etc.), destination city, class (economy, business, first), airline, type (one-way, round-trip), etc. are input and the search button 11 is clicked (S101), the electronic commerce apparatus 1 is an information storage unit. 7 is searched for whether or not an air ticket satisfying these conditions is stored (S102). As a result, when the electronic commerce apparatus 1 determines that the air ticket that matches these conditions is stored in the information storage unit 7, the seller stores the data related to the air ticket that meets the above conditions from the information storage unit 7. The information is output and transmitted to the terminal 3 on the side (S103), and the list 12 of airline tickets is displayed on the terminal 3 on the seller side as shown in FIG. 4 (S104).

  On the other hand, if the electronic commerce apparatus 1 determines in step 102 that an air ticket that matches these conditions is not stored in the information storage unit 7, an air ticket that matches these conditions is displayed. Newly added to the list 12 of air tickets. In this case, the price in the charge column is displayed as, for example, 0 yen.

  In the price column of the airline ticket list 12, the last traded price is displayed. When the price in the price field of a specific airline ticket is clicked from the terminal 3 on the seller side (S105), the seller of the electronic commerce apparatus 1 As shown in FIG. 5, the side information management unit 5 includes each seller's desired sales price registered in the information storage unit 7, the number of sellers who want to sell at the same price as the desired sales price, the information storage unit 7 is output to the seller's terminal 3 and transmitted to the seller's terminal 3 (S106), and the seller's terminal 3 As shown in FIG. 5, the commercial transaction table 13 is displayed (S107).

In the middle column of the commercial transaction table 13, the prices are displayed in descending order, and in the left and right columns, the number of sellers and the number of buyers are displayed corresponding to each price. If the seller wants to sell together at the same price, as shown in the bottom row of FIG. 5, the total number of sellers sold together (1000 in FIG. 5) is followed by the minimum number of units sold (600, 200 in FIG. 5). , 200) can also be written in parentheses to indicate that intention.
When the number of sellers (in this case, 4) at the desired price (in this case, for example, 30,000 yen) is clicked from the terminal 3 on the seller side in the commercial transaction table 13 (S108), the electronic The commercial transaction apparatus 1 outputs and transmits data for inputting the desired sales price to the seller-side terminal 3 (S109), and the seller-side terminal 3 receives the desired sales price input form 14 as shown in FIG. Is displayed (S110).

  At this time, if the same desired sales price has already been input, as shown in FIG. 6, the input history list 15 is displayed together with the desired sales price input form 14, and the history list is displayed. When the price is clicked, the seller-side information management unit 5 of the electronic commerce apparatus 1 uses the seller-side data on evidence information (in this case, for example, URL) to identify the seller who has announced the price. This evidence information is displayed together with the desired sales price at the seller's terminal 3.

  Then, in the desired sale price input form 14, the desired sale price is input from the terminal 3 on the seller side, and evidence information (in this case, for example, for specifying the seller who announces the desired sale price) , URL) is input and transmitted (S111), the seller-side information management unit 5 of the electronic commerce apparatus 1 registers the desired sales price in the information storage unit 7 in association with the evidence information (S112).

  In the above description of the series of processing procedures, the case where the desired sales price, evidence information, and the like are input from the seller's terminal 3 has been described. However, the buyer's terminal 4 and other simple information provider terminals ( Such information may be input from (not shown).

  Next, in the commercial transaction table 13 displayed on the buyer's terminal 4 in response to a predetermined operation from the buyer's terminal 4, a desired price (for example, 29,000 yen in this case) from the buyer's terminal 4 is displayed. When the number of buyers (8 in this case) is clicked (S113), the electronic commerce apparatus 1 outputs and transmits data for inputting the desired purchase price to the terminal 4 on the buyer side (S114). As shown in FIG. 7, an input form 16 for a desired purchase price is displayed on the terminal 4 (S115).

  In this desired sale price input form 16, the desired purchase price is entered from the terminal 4 on the buyer side, and in addition to the buyer's personal information such as the passenger's name (romaji), e-mail address, telephone number, etc. When the information is input and transmitted (S116), the buyer side information management unit 6 of the electronic commerce apparatus 1 registers the desired purchase price in the information storage unit 7 in association with the personal information and the desired response time (S117).

  At this time, when evidence information (in this case, for example, URL) for specifying the seller who has announced the desired sales price is input together with the desired sales price from the terminal 4 on the buyer side The buyer side information management unit 6 posts the desired purchase price together with the conditions of the airline ticket that the buyer desires to purchase on the seller management screen 17 as shown in FIG. 8, and places a bid by the seller. That is, when the seller clicks “bid” in the processing column from the management screen 17, a bid screen 18 as shown in FIG. 9 is displayed, and the seller can input a bid price from the bid screen 18. Then, the seller's bid result is posted on the buyer management screen 19 as shown in FIG. In this way, the buyer can purchase an air ticket that meets the conditions desired for purchase at a price lower than the desired purchase price.

  On the other hand, when a predetermined registration procedure such as input of personal information and payment of a fee is performed in advance and the seller who has passed the examination clicks on the number of buyers with a desired price in the commercial transaction table 13, the electronic commerce device 1 The buyer-side information management unit 6 outputs and transmits to the seller terminal 3 the personal information of all buyers with the desired price clicked and data relating to the desired answer time. As a result, the seller can directly communicate with the buyer using a communication means such as an e-mail or a telephone, and negotiate a sales transaction. As a result, when a sales transaction is established between the seller and the buyer, when the seller inputs and transmits the sales transaction amount in a predetermined form (not shown), the electronic commerce apparatus 1 uses the sales transaction amount. Update the price in the airline list 12. In this case, the seller makes a profit by selling thin profits to all or part of the buyers shown in the number of buyers (in FIG. 5, 8 to 29000 yen, 10 to 28000 yen and 12 to 27000 yen). It can also be obtained.

  As described above, according to the first embodiment of the present invention described above, since the seller and the buyer can easily and surely grasp the market trend of the air ticket and the appropriate transaction amount, And promote efficiency. In addition, the seller can sell a large number of air tickets at one time after calculating profits even if the sales transaction price is lower than the initial desired sales price. Since it is possible to easily and surely purchase a desired air ticket at an amount close to the desired purchase price, it is possible to give a profit to both the buyer side and the seller side.

  Next, a commercial transaction amount determination system according to a second embodiment of the present invention will be described with reference to the drawings. Here, FIG. 8 is a block diagram showing the overall configuration of the commercial transaction amount determination system according to the second embodiment of the present invention.

  This commercial transaction amount determination system includes an electronic commerce device 21 that performs mediation processing for airline ticket sales transactions, a seller-side terminal 23 and a buyer-side terminal that are connected to the electronic commerce device 21 via a communication network 22 such as the Internet. The electronic commerce apparatus 21 is configured to exhibit a predetermined function by installing a commercial transaction amount determination program via a storage medium such as a CD-ROM.

  The electronic commerce device 21 registers the initial sales desired price of the seller who initially sells the air ticket in association with the quantity of the air ticket to be sold at the initial sales desired price and the purchase expiration date, and the initial sales are requested. Output the desired price and quantity and the expiration date of purchase and sale, register the desired resale price of the buyer who has purchased the goods or services at the initial desired price and associate it with the quantity of the ticket to be resold at the desired resale price, and request And the seller side information management unit 25 that outputs the desired resale price and quantity according to the request, and the purchase desired price of the buyer who purchases the air ticket is registered in association with the quantity of the air ticket to be purchased at the desired purchase price. The buyer-side information management unit 26 that outputs the desired purchase price and quantity according to the initial sale desired price, and the quantity and sales of air tickets sold at the initial sale price. An information storage unit for storing various information such as an expiration date, the seller's desired sales price, the quantity of air tickets sold at the desired sales price, the buyer's desired purchase price, and the quantity of air tickets purchased at the desired price 27.

  Next, a processing procedure of the commercial transaction amount determination system according to the embodiment of the present invention will be described mainly with reference to FIGS. Here, FIG. 9 is a flowchart showing a processing procedure of the transaction amount determination system according to the second embodiment of the present invention, and FIG. 10 is a diagram showing an input screen for the desired initial sales price of the air ticket in the transaction amount determination system. FIG. 11 is a view showing an input screen for the desired resale price of the air ticket in the transaction value determination system.

  First, the electronic commerce apparatus 21 is accessed from the terminal 23 on the seller side via the communication network 22 to display an input screen 28 for the initial desired price of the air ticket as shown in FIG. The initial desired price, along with the departure date, departure city, destination area, direction (country, etc.), destination city, class (economy, business, first), airline, type (one-way, round-trip), etc. (For example, 30,000 yen), the quantity of air tickets sold at the desired initial selling price and the purchase expiration date are entered, and when the send button 29 is clicked (S201), the seller side information management unit 25 of the electronic commerce apparatus 21 The sales information is registered in the information storage unit 27 (S202).

  Next, the electronic commerce apparatus 1 is accessed from the buyer's terminal 24A via the communication network 22, and the departure date, departure city, destination area, direction (country, etc.), destination city, class of the ticket that the buyer desires to purchase. When conditions such as (economy, business, first), airline, type (one way, round trip) are entered and searched (S203), the seller side information management unit 25 of the electronic commerce device 1 is already registered in the information storage unit 7 Among the stored information, data relating to the air ticket meeting the above conditions is output and transmitted to the terminal 24A on the buyer side (S204), and the list of air tickets meeting the above conditions is sent to the terminal 24A on the buyer side (FIG. (Not shown) are displayed in a list (S205).

  In this airline ticket list, a specific airline ticket is selected from the buyer's terminal 24A together with its quantity, and when a purchase button (not shown) is clicked (S206), the seller side information management unit 25 specifies the buyer's information. It is determined that a sales transaction has been established between the seller and the buyer at the initial desired price for the air ticket for the quantity, and the transaction establishment amount and the transaction establishment quantity are registered in the information storage unit 27 (S207).

  Thereafter, when the buyer who has purchased the air ticket wishes to resell the air ticket, an input of the desired resale price of the air ticket as shown in FIG. 11 is made in accordance with a predetermined operation from the terminal 24A of the buyer. The screen 30 is displayed on the buyer's terminal 24A (S208).

  On the input screen 30 for the desired resale price of the air ticket, the buyer wants the resale desired price (usually higher than the initial sales price, for example, 35,000 yen) and the quantity of air tickets to be resold at the desired resale price. When the transmission button 31 is clicked (S209), the seller-side information management unit 25 of the electronic commerce apparatus 21 registers the resale information in the information storage unit 27 (S210).

  Next, when the electronic commerce apparatus 21 is accessed from the terminal 24B on the other buyer side via the communication network 22 and another buyer sees the resale information and wishes to purchase, the terminal 24B on the buyer side When an air ticket purchase button (not shown) is selected together with its quantity (S211), the seller-side information management unit 25 selects the first buyer at the desired resale price for the air ticket for the quantity specified by the buyer. It is determined that a sales transaction has been established among subsequent buyers, and the transaction establishment amount and transaction establishment quantity are registered in the information storage unit 27 (S212).

  Thereafter, the resale process is repeated in accordance with the same processing procedure as described above in accordance with the buyer's request until the expiration date of the sale.

  At this time, the first seller who sold the air ticket at the initial desired price or the buyer who reselled at the desired resale price can resell the air ticket again after buying it back. is there. Further, the seller side information management unit 25 allows the seller or the buyer to change the desired initial sales price by the seller or the desired resale price or quantity by the buyer if it is within the trading validity period. Depending on the price, the price or quantity can be changed at any time.

  As described above, according to the above-described second embodiment of the present invention, the seller and the buyer can easily and surely grasp the market trend of the air ticket and the appropriate sales transaction amount. And promote efficiency. Further, the seller can sell a large number of air tickets at once after calculating profits even if the sales transaction amount is lower than the initial desired sales price. In addition, the buyer can easily and reliably purchase a desired air ticket at low cost, and can also enjoy the benefits of resale. Therefore, the commercial transaction amount system described above can give a profit to both the buyer side and the seller side.

  Furthermore, the above-described second embodiment of the present invention is particularly effective when a product is tested and sold with a limited quantity in order to determine an appropriate price for a new product.

  In each of the above-described embodiments, the case where the seller side terminal and the buyer side terminal are connected to the electronic commerce apparatus via the communication network has been described. However, the present invention is limited to this case. Instead, for example, various changes are possible, such as a configuration in which the terminal of the buyer, the terminal of the seller, or both can directly operate the electronic commerce apparatus.

  Further, in each of the above-described embodiments, the air ticket is described as an example of the product or service. However, this is merely an example, and the present invention is, for example, an automobile, a motorcycle, a personal computer, a home appliance, a camera, a watch, Needless to say, the present invention is also applicable to business transactions of various products or services other than air tickets, such as glasses, jewelry, precious metals, fixed and mobile phones, game software, DVD software, real estate, travel, insurance, providers, and the like.

It is a block diagram which shows the whole structure of the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the transaction amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the input screen for the search of an airline ticket in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the display screen of the list of airline tickets in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the display screen of the commerce table of an airline ticket in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the input screen of the sales desired price of an airline ticket in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the input screen of the purchase desired price of an airline ticket in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the management screen of a seller in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the bid screen in the transaction amount determination system which concerns on the 1st Embodiment of this invention. It is a figure which shows the management screen of the buyer in the commerce amount determination system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the whole structure of the commerce amount determination system which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the process sequence of the transaction amount determination system which concerns on the 2nd Embodiment of this invention. It is a figure which shows the input screen of the initial sales desired price of an airline ticket in the commerce amount determination system which concerns on the 2nd Embodiment of this invention. It is a figure which shows the input screen of the resale desired price of an airline ticket in the transaction amount determination system which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

3 Seller terminal 4 Buyer terminal 5 Seller information manager 6 Buyer information manager 23 Seller terminal 24A Buyer terminal 24B Buyer terminal 25 Seller information manager 26 Buyer information manager 26

Claims (8)

A business transaction amount determination system for determining an appropriate sales transaction amount of a product or service between a seller and a buyer of the product or service,
When the desired sales price is input together with evidence information for identifying the seller who has announced the desired sales price of the product or service, the desired sales price is registered in association with the evidence information, and the request is received. According to the seller side information management means for outputting the desired sales price and evidence information,
When a purchase desired price of the buyer is entered together with the buyer's personal information by the buyer who purchases the product or service, the purchase desired price is registered in association with the personal information, and the purchase request is requested in response to a request. Buyer side information management means for outputting price and personal information;
A transaction amount determination system characterized by comprising: The seller side information management means registers the desired sales price in association with the number of sellers who wish to sell at the same price as the desired sales price, and outputs the desired sales price and the number of sellers upon request. And
The buyer side information management means registers the desired purchase price in association with the number of buyers who wish to purchase at the same price as the desired purchase price, and outputs the desired purchase price and the number of buyers upon request. The transaction amount determination system according to claim 1.   The buyer side information management means, when the buyer's desired purchase price is entered together with evidence information for identifying the seller by the buyer who purchases the goods or services, the buyer purchases on the seller management screen The system for determining a commercial transaction amount according to claim 1 or 2, wherein a desired purchase price is posted together with a condition of goods or services desired to be sold, and a seller can input a bid price. A business transaction amount determination system for determining an appropriate sales transaction amount of a product or service between a seller and a buyer of the product or service,
When the seller who sells the product or service first inputs the initial sale desired price together with the initial sale desired price and the quantity and purchase expiration date of the product or service, the initial desired sale price is set to the quantity and The initial sales desired price and quantity and the sales expiration date are output in response to a request, and the resale together with the resale price together with the desired resale price by the buyer who purchased the product or service at the initial desired sales price. Seller-side information management means for registering the resale desired price in association with the quantity and outputting the desired resale price and quantity upon request when the quantity of the goods or services sold at the desired price is input When,
When the buyer of the product or service inputs the quantity of the product or service to be purchased at the desired purchase price together with the desired purchase price, the purchase desired price is registered in association with the quantity and upon request. Buyer side information management means for outputting the desired purchase price and quantity,
A transaction amount determination system characterized by comprising:   5. The transaction amount determination system according to claim 4, wherein the seller-side information management unit allows the seller to change the initial desired sale price or the desired resale price by the buyer during the sale expiration date. A method for determining a transaction amount for determining an appropriate transaction transaction amount of a product or service between a seller and a buyer of the product or service,
When the desired sales price is input together with evidence information for identifying the seller who has announced the desired sales price of the product or service, the desired sales price is registered in association with the evidence information, and the request is received. And outputting the desired sales price and evidence information accordingly,
When a purchase desired price of the buyer is input together with the buyer's personal information by the buyer who purchases the product or service, the purchase desired price is registered in association with the personal information, and the purchase request is requested when requested. Outputting the price and personal information;
A method for determining a transaction amount comprising: A method for determining a transaction amount for determining an appropriate transaction transaction amount of a product or service between a seller and a buyer of the product or service,
When the seller who sells the product or service first inputs the initial sale desired price together with the initial sale desired price and the quantity and purchase expiration date of the product or service, the initial desired sale price is set to the quantity and Registering in association with the trading expiration date, and outputting the initial sales desired price and quantity and the trading expiration date upon request;
When the buyer who has purchased the product or service at the initial desired sales price inputs the resale desired price and the quantity of the product or service to be sold at the desired resale price, the resell desired price is registered in association with the quantity. And outputting the desired resale price and quantity upon request,
When the buyer of the product or service inputs the quantity of the product or service to be purchased at the desired purchase price together with the desired purchase price, the purchase desired price is registered in association with the quantity and upon request. Outputting the desired purchase price and quantity,
A method for determining a transaction amount comprising: The electronic commerce program for making a computer perform the step of Claim 6 or 7.

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