JP2007226758A - Sales and purchase system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a commodity purchase system allowing a purchaser to select purchase/return of a specific commodity after its trial purchase at a desired price for a fixed period. <P>SOLUTION: This sales and purchase system is provided with a plurality of terminal Rn, Pn, and Cn, a management server S, and an auction site server AS. A sales price and a trial purchase price of a specific commodity a1 are transmitted from a terminal to the management server S, and when a double auction start request is transmitted to the auction site server AS, browsing of double auction deciding a seller pn and a purchaser rn of a second-step commodity a2 becomes available from each terminal. The management server S transmits the highest value pair data pdn of bid prices about the sales price and the trial purchase price to the auction site server to allow browsing of the data from the terminals, acquires the highest value pair data pdn stored in the auction site server at that point, decides a sales price and a highest bid price for the trial purchase price of the next generation commodity a2, and starts double auction for the commodity a2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a merchandise sales and purchase system for creating a merchandise purchase method that is advantageous to merchandise purchasers and a merchandise sale method that is beneficial to merchandise sellers using a communication network.

With the advent of the Internet, various forms of retail and its sales channels have appeared, such as online electronic commerce and Internet auctions, in addition to conventional sales forms in real stores.

In addition to payments at real retail stores, electronic payment methods using credit cards, eddy cards, mobile phones, etc. have appeared and become popular for online e-commerce transactions and online auction transactions. .

However, compared to the variety of sales forms and settlement methods, the purchase price is uniform and, except for auctions, most of the purchase price is determined by the seller, In addition, including the auction, the purchase price is based on the full payment determined by the seller (the method of splitting by credit card, revolving payment, etc., and if the interest rate is included, it will eventually be more than the full sales price). Currently, there are no other options.

On the sales side, the revenue generated from a product is generally based on the sales profit when the product is sold to the first buyer. The profits of the next-generation products that are generated when the buyer (hereinafter referred to as the next generation) gets into the hands of the buyer is secured by an auction, or the second-hand goods dealer, etc., currently obtains the first seller. Until now, there has been no system that continuously secures the profits that can continue to be generated as long as the sales products have product power.

Furthermore, sales methods that do not involve real dealers, such as shopping on the Internet or auctions, cannot actually confirm the actual product before purchase, so troubles such as defective or fake brand products are often bought and sold. Has occurred.

In view of the above-described problems, the present invention allows a purchaser to purchase a desired product for a certain period of time at a desired price, use it and be convinced, and then make a full purchase of the product. Buyer-based product purchase system that can respond to the needs of buyers, and product sales that ensure that the ownership of the product is handed over to the next-generation owner without time loss and secures the sales profits generated each time Provide sales and purchase systems for products, including systems.

The sales and purchase system of the present invention is a sales and purchase system having a plurality of terminals, a management server connected to each terminal, and an auction site server that operates an auction site and connects to the management server. Between the seller selling the product, the purchaser trying out the product, and the third party who shares the price of the product minus the purchase price of the purchaser. When the trial purchase price is sent from the terminal to the management server, the purchaser returns the product after the trial purchase, and the auction site server starts the auction on the next product to be resold on the net. Sales purchase system that allows users who want to participate in the auction to browse and send sales prices and trial purchase prices to third-party devices that share a portion of the sales price. The present invention relates to beam. In the present invention, the management server attaches a request for starting the auction for the next product to the purchase price of the purchaser and transmits it to the auction site server. The information on the start of a double auction conducted by a trial purchase applicant can be viewed on the terminal of the applicant who wants to participate in this auction, and the sales price of the next product input from the terminal and the bid price of the trial purchase price are saved. Then, a double auction for determining the seller and purchaser of the next generation product is started on the Internet by the trial purchase of the seller.

As a result, the purchaser of the product can make a trial purchase at a desired price below the sales price determined by the seller for a certain period of time, and at the same time the trial purchase of this product is executed, A double auction for the next generation product will be started on the Internet to determine buyers and sellers.

The sales and purchase system of the present invention returns the product after the trial purchase and when the sale of the next product is decided, the return information of the product is transmitted from the terminal to the management server, and the double auction of the next product is completed and completed. The present invention relates to a sales and purchase system in which a next-generation seller and a purchaser are determined, and a terminal of the determiner is allowed to view a notice of a successful bid for a double auction. In the present invention, the management server receives the purchaser's return information from the terminal, and uses the highest price pair data in which the sales price of the next-generation product stored in the auction site server and the trial purchase price are paired as the winning bid price. It is characterized in that each winning bid price is determined as the selling price and trial purchase price of the next-generation product, and the winning bid price and the winning bidder determination notification are viewed from the winning bidder's terminal.

In this way, a double auction that determines the seller and trial purchaser of the next-generation product is established and confirmed by the return from the product purchaser, and as a result, the amount obtained by subtracting the trial purchase price from the sales price determined for the next-generation product is also determined. When a trial purchase that is shared by a third party is executed, a double auction for the next product when the next product is returned is started.

The management server according to the present invention for determining the winning bid price of the selling price and the trial purchase price in the double auction is a step of browsing the selling bid prices of all the next-generation products stored in the auction site server from the terminal of the trial purchase applicant. And selecting a bid price that the purchaser may purchase from the sales price to be browsed, and receiving a trial purchase price for the sales price bid-transmitted from the terminal. Then, the management server in the present invention transmits the highest selling price for which the trial purchase price is bid and the single selling price for which there is no bid that is higher than the highest price to the auction site server, from the terminal. And a step of placing it in a viewable state. Furthermore, the management server in the present invention, when there is a person who wishes to bid at or above the trial purchase price paired with the highest selling price, receiving the trial purchase price transmitted from the terminal bid, If there is a step where the selling price and trial purchase price are stored as the highest price pair data, and there is a trial purchase applicant who wants to purchase at a stand-alone selling price higher than the highest price, the trial purchase price sent from the device by bid A step of receiving, a step of rewriting the combination of the high selling price and the trial purchase price bid for it into new maximum price pair data, a step of transmitting the new maximum price pair data to the auction site server, and a terminal When the buyer's return information is received, the highest pair data at that time stored in this auction site server Tokushi, is characterized by comprising the step of determining the highest value pair data to the successful bid price of the sale price and try the purchase price of the next generation product.

This double auction for the next-generation product allows the purchase applicant to select both the trial purchase price of the desired product and the actual purchase price when the product is finally purchased. The sales price can be determined by looking at the trends of purchasers, and the original product seller can continue to be the seller of the next product by participating in the auction. Furthermore, the quality of the next-generation product is guaranteed by checking and confirming the goods returned by the seller.

Further, in the sales and purchase system of the present invention, when the purchaser makes a trial purchase of the product, the management server automatically calculates a third party purchase share price obtained by subtracting the purchase purchase price of the purchaser from the sales price of the seller. Storing the three-party purchase share price in a storage device and making the third party purchase share price stored in the storage device viewable in response to an access from a third-party terminal; . In the present invention, when the purchaser purchases the product after the trial purchase, the management server rewrites the third party purchase share price stored in the storage device to the purchase price, and the purchase price from the terminal of the seller. In order to notify the auction site server that the double auction has been canceled, and to make the double auction cancellation information viewable from the terminal, the purchase of the purchaser will cancel the double auction for the next-generation product. It is characterized by that.

In addition, the sales and purchase system of the present invention has a sales price of an arbitrary n generation seller who sells a specific product for an arbitrary integer n and a trial purchase of an arbitrary n generation purchaser who desires a trial purchase of the specific product. The price is transmitted from the terminal to the management server, and the auction site server starts the double auction on the net regarding the optional n + 1 generation product returned after trial purchase by the optional n generation purchaser. The management server sends an auction start request for any n + 1 generation product to the trial purchase price of an arbitrary n generation purchaser and transmits it to the auction site server, and the auction site server Information on the start of a double auction in which a person who wants to purchase and purchase a product of any n + 1 generation will participate in the auction. An optional n + 1 generation double auction is started by trial purchase of an arbitrary n generation purchaser, which can be browsed on the terminal and stores the bid price of the optional n + 1 generation sales purchase price and trial purchase price input from the terminal. It is characterized by that.

Further, in the sales and purchase system of the present invention, when an arbitrary n generation purchaser returns a product after trial purchase for an arbitrary integer n, the management server receives the return information transmitted from the terminal and performs a double auction. Is established, the seller and the purchaser of any n + 1 generation are determined, and the sales and purchase system is configured to allow the terminal of the determiner to view the notice of the successful bid of the double auction. In the present invention, the management server receives the return information of the arbitrary n generation purchaser from the terminal, and the highest purchase price of the sales purchase price and the trial purchase price of the arbitrary n + 1 generation product stored in the auction site server. As the winning bid price, determine the winning bid price as an arbitrary n + 1 generation merchandise sales price and trial purchase price, and allow each winning bid to be viewed from the winning bidder's terminal. A double auction for determining the seller and trial purchaser of the n + 1 generation product is established and confirmed, and the trial purchase is also executed for the optional n + 1 generation product, so that the double auction for the optional n + 2 generation product is started. It is a feature.

Therefore, when a product is trial-purchased by this sales and purchase system, double auctions for repeatedly determining the next-generation seller and purchaser are continuously executed until the product is purchased.

In addition, the sales and purchase system of the present invention returns the specific product after the trial purchase, and when the same seller who sells the product permits the trial purchase of a plurality of different products any number of times, It is characterized in that a double auction is repeatedly performed until the purchaser decides the final purchase after trial purchase of each different product.

Furthermore, in the sales and purchase system of the present invention, when a third-party terminal that shares a part of the sales price enabling trial purchase by the purchaser is used as a credit company or financial settlement related company terminal, the trial purchase period of the product Is the settlement period agreed between the purchaser and the financial settlement affiliated company, the management server automatically calculates the share of purchase by subtracting the purchase price of the purchaser from the seller's sales price. When the price is stored in the storage device and the purchaser purchases the product after trial purchase, the purchase share price stored in the storage device is rewritten with the purchase price, and the purchase information is added to the purchase price and financed. There is a step of transmitting to the terminal of the payment related company. In the present invention, when the purchaser returns the product, the management server automatically calculates the next product purchase share price obtained by subtracting the trial purchase price from the sale price of the next product determined in the double auction, and the purchase share price of the next product. The purchaser may send a notification of ownership transfer to the terminal of the financial settlement related company, and the personal information regarding the electronic payment is transmitted from the terminal of the next-generation purchaser to the terminal of the financial settlement related company. Using electronic payment including a terminal such as a prepaid prepaid card, postpaid credit card, immediate payment debit card provided by the financial settlement related company, or an electronic money card or a mobile phone having a payment function, It is characterized by being able to purchase a product by trial.

As described above, according to the sales and purchase system of the present invention, the purchaser can purchase a product at a trial purchase price equal to or lower than the normal sales price, and after the trial purchase period, It is possible to decide whether to return the product.

According to the sales and purchase system of the present invention, it is possible for the seller to ensure the sales profit that is continuously generated as long as the sales product has the product power.

Furthermore, according to the sales and purchase system of the present invention, the purchaser can return the product and make another trial purchase from the same seller.

Further, according to the sales and purchase system of the present invention, the seller increases the absolute number of purchasers by enabling trial purchases, and further increases the profits by promoting the purchase replacement by the purchaser to another product. It becomes possible.

As an effect of the present invention, a purchase sharing third party that shares a part of the selling price of a specific product, every time returns, trial purchases, and replacements are repeatedly executed until the specific product is fully purchased. Profits can be earned.

The problem of product inventory, which was a major problem in the conventional sales system, is that in the sales and purchase system of the present invention, the purchaser who is always making trial purchases becomes the inventory manager before reaching the next purchaser's hand. , Inventory space, and inventory cost issues do not occur.

Also, from a social point of view, product buyers always use it as a next sale item, so the product will always be treated with care, and at the same time, products with product power Since value is maintained across generations, it contributes to the realization of a Lohas society where only truly good products are produced and used continuously since the era of mass production and mass consumption.

An embodiment of the sales and purchase system of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an overall configuration diagram of the present invention. When the merchant r1, the purchaser p1, the purchase sharing third party c1 that shares a part of the sales price, and the product a1 is returned from the purchaser p1 and registered in the auction as the next product a2, the next product a2 For the auction, there is a next product seller r2 who wishes to purchase and sell, and a next product buyer p2 who wishes to purchase a trial product. The terminal R1 of the seller r1, the terminal C1 of the purchase sharing third party c1, the next product The terminal R2 of the seller r2 and the terminal P2 of the next purchaser p2 are each connected to a communication network 101 such as the Internet. As the connection terminals R1, C1, R2, and P2, a terminal having a communication function such as a mobile phone can be used in addition to a personal computer. In FIG. 1, the next product seller r2 and the next product purchaser p2 participating in the auction for the next product a2 each display one person, and each terminal R2, P2 also displays one device each. It is assumed that there is no limit on the number of terminals. The seller may be a real store such as a general retail store, or may be a seller who conducts sales / auctions via the Internet or mail order. The merchandise a1 handled by the seller includes all goods services such as real estate, membership, and paintings in addition to normal retail goods, and may be new or used. The purchase sharing third party that shares a part of the sales price can be assumed to be various financial institutions such as banks, but FIG. 2 shows an example of a credit company.

Further connected to the communication network 101 are a management server S having various bid support databases 1 for providing bid support information for members and an auction site server AS for managing a virtual double auction site 102 on the net. Yes.

FIG. 2 is started every time a purchaser purchases a product from the seller in this sales / purchase system. When the product is returned after the trial purchase, the successful bidder is determined, and is canceled when the product is purchased. The flow of a double auction in which sellers and purchasers of next-generation products participate is shown. A third party who shares a part of the sales price of the product is a credit company, and by connecting the management server S and the server of the credit settlement system, the purchaser p1 uses the credit card to which the seller r1 is a member, The case where a1 is purchased is shown. In the figure, when the product a1 is trial-purchased from the purchaser p1, the terminal R1 of the seller r1 displays the product name of a1, the sales price 38000 yen, the trial purchase price 8000 yen, the trial purchase period 1 month, the seller name, etc. When the auction information is transmitted to the management server S (step 1), the management server S transmits a double auction start request for the next product a2 to the auction site server AS together with each information (step 2), and the auction site server AS Assuming the return of the product a1 and wishing to participate in the double auction, together with various support data necessary for bidding, the fact that a double auction has been started to determine the seller and purchaser of the product a2 sold online Displayed on the terminal Rn and Pn of the customer (step 3), and the sales price of a1 and the trial purchase are displayed on the payment system server of the credit company. To send a card purchase information that was accompanied by a price (step 4).

In FIG. 2, when 10000 yen is bid as the initial sales bid price from the terminal Rn of the participant who wants to sell the product a2 to the double auction (Step 5), the management server S stores the product a2 with the sales price of 10000 yen. The information is transmitted to the auction server AS, and the auction server AS displays information on the selling price of 10,000 yen of the product a2 in response to a request from the terminal Pn of the participant who wants to purchase the product a2 (Step 6). The trial purchase price of 50,000 yen is bid for the sales price of 10,000 yen from (step 7). This double auction is conducted for one month, which is the trial purchase period of the product a1, and in the process shown in FIG. 3, the sales price is 10000 yen, followed by 15000 yen, 19000 yen, 21000 yen from each participant. When the trial purchase price is 5000 yen followed by 8000 yen, 6000 yen, 7000 yen, 7250 yen from each participant (see Fig. 3), the management server S bids whenever there is such bid information. One month after the trial purchase period of the product a1 while updating the data, the return information of the product a1 is transmitted from the terminal (step 8), and when the confirmation of the double auction of the product a2 is requested, the management server S receives the auction. The highest sales price with the trial purchase price of a2 stored in the site server AS and the highest trial purchase price for that sales price. The combination of values is acquired (step 9), the highest price of each is determined as the winning price of the selling price and trial purchase price of a2, and the determined winning bid price is notified from each determining person's terminal together with the winning bidder determination notification. (Step 10). The process of determining each successful bid price by the management server S is shown in FIG. A payment sharing price of the product a2 obtained by subtracting the trial purchase price from the sales price of the determined product a2 and a notice of ownership transfer are transmitted to the settlement system server of the credit company (step 11), and the trial purchase of the product a2 is performed. The credit card information necessary for the trial purchase of the product a2 is transmitted from the person's terminal (step 12).

As shown in FIG. 2, when the purchaser p1 purchases the product a1 after the trial purchase period of the product a1, the purchase information is transmitted from the terminal R1 of the seller r1 to the management server S (step 13). Then, the management server S transmits a decision to cancel the auction to the auction site server AS (step 14), and displays on the auction site that the double auction related to the product a2 is canceled (step 15). Further, the management server S transmits the main purchase information of the product a1 to the terminal Cn of the credit card company (step 16).

FIG. 3 shows a process of determining the winning bid price of the double auction determined by the database provided in the management server S. The seller a1 sells the product a1 for 38000 yen, the trial purchase price a1t of the purchaser p1 is 8000 yen, the credit company share price a1c is 30000 yen, and the double auction a2WA of the product a2 is started. When the first bidder a2r1 who wants to sell the double auction product a2 bids 10,000 yen (step 17), the management server S sends the sale price of the product a2 to the auction site server AS as 10,000 yen, and the auction site The server AS displays auction information with a selling price for the product a2 of 10,000 yen from the terminals connected by the communication network 102. The first trial purchase applicant a2p1 who views this information on the terminal and thinks that the product a2 may be fully purchased at 10000 yen bids 5000 yen as the desired trial purchase price from the terminal (step 18). ) And 10000/5000 pair data pd1 is transmitted to the management server S, and the management server S displays the pair data pd1 on each terminal as the highest price at that time of 10000 yen / trial purchase 5000 yen Let Further, the sales price 15000 yen is bid from the sales applicant a2r2 of the product a2 to be awarded at 10000 yen or more (step 19), the a2r3 to 19000 yen is bid (step 20), and the a2r4 to 21000 yen is bid (step 20). 21), the bid data is transmitted from each terminal to the management server S, and the database provided in the management server S adds 15000 yen, 19000 yen and 21000 yen to the bid price of the sale price of the product a2, The latest sales price information of the product a2 obtained by adding the new sales prices of 15000 yen, 19000 yen, and 21000 yen to the server AS is displayed from the terminal. The trial purchase applicant a2p2 who browsed the information a2p2 bids a trial purchase price of 8000 yen for a bid of 15,000 yen (step 22), and a2p3 is 6000 yen for a bid of 19000 yen of the sales price. If the a2p4 bids a trial purchase price of 7000 yen for a bid of 19000 yen (step 24) and there is no bid for the sales price of 21000 yen (step 23) The database of the management server S has a maximum value of 19000 yen, which is the highest sales price for which the bid for the trial purchase price was bid at that time, and a maximum price of 7000 yen for the trial purchase price at that sales price. Store and store as pair data 19000/7000 pd2 and send it to the auction site server AS. And the highest value at that point in time that the selling price 19000 yen / trial purchase price of 7000 yen, continued to display the stand-alone selling price 21000 yen there was a bid in yen or more 19000, raise hope who want to buy try at that price. If there is no bid for the trial purchase price for the stand-alone selling price of 21,000 yen, and the a2p5 bids for the trial purchase price of 7250 yen for the selling price of 19000 yen (step 25), the management server S at that time Rewrites the highest price pair data pd3 from 19000/7000 to 19000/7250, sends it to the auction site server AS, and the selling price of 19000 yen / trial purchase price of 7250 yen, which is the highest price at that time, from the terminal. 21,000 yen is continuously browsed, and this process is continued during the trial purchase period of the product a1, and after the trial purchase period, when the product a1 is returned (step 26), the terminal R1 of the merchandise item a1 sells the product a1. Return information is transmitted to the management server S (step 27), and the double auction a2 of the product a2 A is established and the management server S obtains the highest value pair data 19000/7250 pd3 stored in the auction site server AS at that time, and the sale successful bid price of the product a2 is 19000 yen, the trial purchase successful bid price of the product a2 7250 yen is determined as (step 28).

In FIG. 2, at the same time as step 10, the auction site server AS executes the fact that a double auction related to the product a3 is started in the same process as step 4 described above, and is executed during the trial purchase period of the product a3. The double auction proceeds in the above-described steps 5 to 7 and the process shown in FIG. 3, and the cancellation of the double auction accompanying the actual purchase of the product a3 is the same as the above-described steps 13 to 16, and the product a3. The establishment of the double auction associated with the return of the item is executed in steps 8 to 12 and the process shown in FIG. As described above, as shown in FIGS. 2 and 3, when the product an is trial-purchased, a double auction for determining the seller and purchaser of the product an + 1 is started, and when the product an is returned, the double auction of the product an + 1 is started. When the successful bidder is determined after establishment and the information that the product an + 1 has been trial-purchased by the successful bidder is transmitted from the terminal to the management server S, a double auction for determining the seller and purchaser of the product an + 2 is started. As described above, the start and establishment of the double auction for the product an + 1 are executed by trial purchase and return for the product an, and this is established with an arbitrary integer n. Further, in this series of processes, the purchaser pn who has made a trial purchase of the product an returns the product an, and from the same seller rn, the purchaser pn returns and replaces another product bn and further product cn. In the same way, the double auction of the next-generation sales item xn + 1 related to the different product xn is repeatedly executed in the same manner, and this is established for any product xn purchased from the seller rn of the product an.

  It is a whole block diagram regarding the sales purchase system of this invention.   It is a flowchart which shows the flow of the double auction of this invention.   FIG. 3 is a diagram of a process for determining a successful bid price determined by a management server shown in FIG. 2 and an illustrative diagram of a successful bid price and the like.

Explanation of symbols

101 Communication Network 102 Double Auction Site S Management Server AS Auction Site Server a1, a2 Product Pn Purchaser Terminal Rn Seller Terminal Pdn Maximum Value Pair Data Cn Purchase Sharing Third Party Terminal

Claims (8)

A sales and purchase system having a plurality of terminals, a management server connected to each of the terminals, and an auction site server that operates an auction site and connects to the management server, , When information including a trial purchase price and a trial purchase period of a purchaser who purchases the specific product for trial purchase is transmitted from the terminal to the management server, and the specific product is returned from the purchaser after the trial purchase period, Regarding the next product to be resold on the net, an auction on the net for the next product is started, and the sales price and the trial purchase are sent to a third party terminal that shares a part of the sales price of the specific product. In a sales and purchase system that sends trial purchase information including price,
The management server appends an auction start request for the next-generation product to the information including the sales price, the trial purchase price, and the trial purchase period, and transmits the information to the auction site server. The step of making it possible to view from the terminal of the person who wants to participate in the double auction, the start information of the double auction in which the next commodity seller who wants to sell the next commodity and the next commodity buyer who wants to purchase the next commodity participate. And storing a bid price of the next-priced product and a bid price of the trial-priced purchase price of the next-priced product, which are input from the terminal. A sales and purchase system characterized by being started on the Internet. The sales and purchase system according to claim 1,
When the specific product is returned after trial purchase, the return information is transmitted from the terminal to the management server, the double auction for the next product is completed, the seller and purchaser of the next product are determined, The decision-maker's terminal is made to read the successful bid notice of the double auction, and the third-party terminal is determined to subtract the trial purchase price from the determined sale price of the next-generation product, In a sales and purchase system where notification of ownership transfer of the next product is sent,
The management server receives the return information transmitted from the terminal, and the highest price pair data in which the sales price and the trial purchase price of the next product stored in the auction site server are paired is a successful bid price. Obtaining the successful bid price as a sales price and a trial purchase price of the next-generation product, and browsing the successful bid price and the successful bidder determination notification from the terminal of the successful bidder. A sales and purchase system, wherein a double auction of the next-generation product is established and confirmed by the return information from the terminal. The sales and purchase system according to claim 2,
In the management server for determining the selling price and trial purchase price of the next-generation product in the double auction, all sales bid prices bid from the terminal of the next-generation product sales applicant are used as the next-product trial purchase applicant. A step of browsing from the terminal, and a step in which the applicant wishing to purchase the next-generation product selects a desired purchase price from among the sales prices to be browsed and receives a trial purchase bid price for the sales price transmitted from the terminal And the highest selling price for which the trial purchase price is bid and the single selling price that is higher than the highest price and does not have a bid for trial purchase, are sent to the auction site server so that they can be viewed from the terminal. Step, and if there is an auction participant who wishes to make a trial purchase at a price higher than the trial purchase price paired with the highest price, Receiving a new high price of the trial purchase bid, and storing the highest price of the sales price paired with the high price of the new trial purchase bid price as maximum value pair data; When there is a trial purchase applicant who wishes to purchase at a stand-alone selling price higher than the selling price of the highest price pair data, a trial purchase for a single selling price higher than the selling price of the highest price pair data transmitted from the terminal Receiving a bid price, rewriting a combination of a stand-alone selling price higher than the selling price of the highest price pair data and a trial purchase price bid to the new highest price pair data, and the new highest price data. Sending the value pair data to the auction site server and receiving the purchaser's return information from the terminal; A management server having a step of acquiring the highest price pair data at that time stored in the server and determining the highest price pair data as a selling price of the next-generation product and a winning bid price of a trial purchase price. . The sales and purchase system according to claim 1,
When the purchaser makes a trial purchase, the management server automatically calculates a third party purchase share price obtained by subtracting the purchase purchase price of the purchaser from the seller's sales price, and the third party purchase share. Storing the price in a storage device and making the third party purchase share price stored in the storage device viewable in response to access from the third party's terminal; When purchasing a specific product after purchase, the management server rewrites the third party purchase share price stored in the storage device to the actual purchase price, and makes the actual purchase price viewable from the terminal. , Notifying the auction site server of the cancellation of the double auction, and making the double auction cancellation information viewable from the terminal. Sale purchasing system, characterized in that the over action is discontinued. The sales and purchase system according to claim 1,
The selling price of an arbitrary n generation seller who sells a specific product and the trial purchase price of an arbitrary n generation purchaser who desires a trial purchase of the specific product are transmitted from the terminal to the management server, and the arbitrary n generations In the sales and purchase system in which the auction site server allows a terminal of an applicant who wants to participate in an auction of an arbitrary n + 1 generation product to browse an auction start on the Internet regarding an arbitrary n + 1 generation product returned after a trial purchase from a purchaser of
The management server adds an auction start request for an arbitrary n + 1 generation product to the trial purchase price of an arbitrary n generation purchaser and transmits the request to the auction site server, and the auction site server sells the arbitrary n + 1 generation product. The start information of the double auction in which the purchase applicant and the trial purchase applicant participate can be viewed on the terminal of the double auction participation applicant, and the product sales purchase price and trial purchase price of any n + 1 generation inputted from the terminal A sales and purchase system characterized in that an arbitrary n + 1 generation double auction is started by a trial purchase of an arbitrary n generation purchaser, which stores the bid price of an arbitrary number n. The sales and purchase system according to claim 2 and 3,
When an arbitrary n generation purchaser returns the specific product after trial purchase, the return information is transmitted from the terminal to the management server, the double auction is completed, and the arbitrary n + 1 generation seller and purchaser In the sales and purchase system that is determined and causes the terminal of the determiner to browse the successful bid notification of the double auction,
The management server receives return information of an arbitrary n generation purchaser from the terminal, and stores the highest value pair data of a sales purchase price and a trial purchase price of an arbitrary n + 1 generation product stored in the auction site server. An arbitrary n + 1 generation product is obtained by returning an arbitrary n generation purchaser to obtain the successful bid price, determining the successful bid price as an arbitrary n + 1 generation sales price and a trial purchase price, and allowing the terminal to view the successful bid price. A double auction is established and confirmed, trial purchase of an arbitrary n + 1 generation product is determined by the establishment of the double auction, and an arbitrary n + 2 generation double auction is started, which is established at an arbitrary integer n Sales purchase system. The sales and purchase system according to claim 3, 5 and 6,
When the purchaser returns the product after trial purchase and purchases a plurality of different products from the seller of the product at an arbitrary number (or number) approved by the seller, the purchaser purchases each of the separate products. The sales and purchase system is characterized in that the double auction is repeated until it is completed. The sales and purchase system according to claim 4, and 3, 5, 6, and 7,
In a sales and purchase system in which a terminal of a third party that shares a part of the sales price enabling trial purchase of the purchaser is used as a terminal of a financial settlement related company including a credit company,
By setting the trial purchase period of the product as a settlement period agreed between the purchaser and the financial settlement related company, the management server connected to the settlement system server of the financial settlement related company can Automatically calculating the financial settlement related company purchase share price obtained by subtracting the purchase price of the purchaser from the purchase price of the purchaser, and storing the financial settlement related company purchase share price in a storage device; When purchasing a specific product after purchase, the management server rewrites the financial settlement affiliated company purchase share price stored in the storage device to the book purchase price, and adds book purchase information to the book purchase price. The step of transmitting to the terminal of the financial settlement related company, and when the purchaser returns a specific product after the trial purchase, the management server sells the next product determined in the double auction. A step of automatically calculating a secondary product purchase share price obtained by subtracting the trial purchase price from the case; a step of transmitting the secondary product purchase share price and a notification of transfer of ownership of the secondary product to the terminal of the financial settlement related company; Prepaid prepaid card for each payment method provided by the financial settlement related company, wherein the purchaser has a step in which personal information related to electronic payment is transmitted from the terminal of the subsequent purchaser to the terminal of the financial settlement related company Sales purchase system characterized by being able to make trial purchases using electronic payments including terminals such as postpay credit cards, immediate payment debit cards, or electronic money cards and mobile phones with payment functions .

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