KR20110048611A - System and method for cooperative purchase of desired goods - Google Patents

Abstract

PURPOSE: An expected product cooperative buying system and method thereof are provided to supply desired product to a potential buyers by connecting a seller and a potential buyer through seller bidding and to objectively measure desired products by a potential buyer. CONSTITUTION: A desired product registration module(200) inputs desired product information and potential buyer information. A database(202) stores the inputted request commodity information and purchase candidate information. A product selection module(204) calculates the number of potential buyers by using potential buyer information and the stored potential product information. The product selection module selects a product by comparing the number of the calculated potential buyers. A seller selection module(206) inputs a desired price from a seller.

Description

System and method for cooperative purchase of desired goods}

The present invention relates to techniques for commodity trading through electronic commerce.

As the Internet becomes popular, e-commerce through the Internet is also active. Early e-commerce was simply a form in which a seller registers a product on his website and a buyer who visits the website uses the website to purchase the product. Efforts are being made to purchase better products at cheaper prices by comparing prices using sites and the like.

However, the current joint purchase through electronic commerce, etc. has a problem that it is difficult to objectively determine which products the buyers want to purchase. In addition, buyers also know how to buy their products at a cheaper price, such as co-purchase, but there is no easy way to reveal what they want.

Embodiments of the present invention by inputting the information of the desired product from the purchaser and connecting the seller with the seller who presented the lowest price through the seller bid for the product desired by a plurality of buyers, the purchasers are the most We want to provide a way to provide the desired product at the lowest price.

The desired product joint purchase system according to an embodiment of the present invention for solving the above problems, the desired product registration module for receiving information on the desired product and the purchaser wishing to purchase from one or more purchasers; A database storing the desired product information and the purchaser information input through the desired product registration module; A product selection module configured to calculate a number of purchasers for each desired product by using the desired product information and purchaser information stored in the database, and select a product to sell by comparing the calculated number of purchasers for each desired product; A seller selection module configured to receive a desired selling price of a product selected in the product selecting module from one or more sellers, and to select a seller to sell the selected product by comparing the input desired selling price; And a merchandise sales module for relaying the sale of the selected merchandise between the seller selected from the seller selection module and the buyer.

In this case, the desired product registration module directly receives information of a product desired to be purchased from the purchaser, or outputs a list of products registered by the seller to the purchaser, and the purchaser wants from the list of products. The purchase desired product information may be input by receiving a selection value for the product.

In this case, the desired product information may include one or more of a product name, a product description, a category, a product picture, a URL, a video, or a sound of the desired product.

The purchaser information may include one or more of an email, a phone number, or a social network service ID of the purchaser.

Meanwhile, the product selection module may select the specific desired product as a sale product when the number of purchasers who register a specific desired product is greater than or equal to a predetermined value.

Alternatively, the product selection module may select a predetermined number of desired products as a sale product in the order of increasing number of desired buyers among the desired products registered in the database.

The seller selection module may classify the number of expected purchasers for the selected product into predetermined sections, and receive a desired price for sale from the seller for each section.

In addition, the seller selection module extracts the number of purchase applicants who have registered the selected product as a desired product from the database, and inputs the selected product to a seller who inputs the lowest desired price for sale in the section to which the number of the purchase buyers belongs. You can choose to sell.

When the sale of the selected product is started, the product selling module may notify the purchaser who registered the selected product as the desired product using the purchaser information stored in the database to notify the start of the sale of the selected product. Can be.

Meanwhile, the desired product joint purchase system may provide statistical information including the desired product information stored in the database, the purchaser information, and the actual product purchase rate of the purchaser who registered the selected product as the desired product to the selected seller. It may further include a statistics module for transmitting.

On the other hand, the desired product co-purchasing method according to an embodiment of the present invention for achieving the above object, in the desired product co-purchase system, the information on the desired product and the desired purchaser information that you want to purchase from one or more buyers Receiving an input; In the desired product joint purchase system, calculating the number of desired purchasers for each desired product by using the inputted desired product information and desired purchaser information, and selecting a product to sell by comparing the calculated number of desired purchasers for each desired product ; In the desired product joint purchase system, receiving input of a desired price for selling the product selected in the selling product selecting step from one or more sellers; In the desired product joint purchase system, selecting a seller to sell the selected product by comparing the desired sales price input from the one or more sellers; And in the desired product joint purchase system, relaying a sale of the selected product between the selected seller and the buyer.

In this case, the selling product selection step may select the specific desired product as a selling product when the number of purchasers who register a specific desired product is equal to or more than a predetermined value.

In the selling product selection step, a predetermined number of desired products may be selected as a selling product from the desired products registered in the database in order of increasing number of desired purchasers.

On the other hand, after performing the selling product selection step, and before performing the step of receiving the desired input price, in the desired product joint purchase system, transmitting the statistical information including the desired product information and the purchaser information to the seller; It may further include.

In the receiving of the desired price for selling, the expected number of desired buyers for the product selected in the product selection step may be divided into predetermined sections, and the desired selling price may be input from the seller for each of the sections.

On the other hand, in the seller selection step, a seller who inputs the lowest desired sales price in a section to which the number of purchasers who registered the selected product as the desired product in the desired product information input step belongs to the seller who will sell the selected product. Can be selected.

In the product selling step, when the sale of the selected product is started, the purchaser who registered the selected product as the desired product is notified of the start of the sale of the selected product by using the purchaser information stored in the database. May further comprise a step.

The desired product joint purchase method may further include transmitting statistical information including the actual product purchase rate of the purchaser who registered the selected product as the desired product after performing the product selling step to the selected seller. Can be.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

Embodiments of the present invention, by objectively measuring what products are desired by a plurality of purchasers from the purchasers and by linking the purchasers with the seller who offered the lowest price through seller bidding for the product, They can offer the products they want most at the lowest price.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The technical spirit of the present invention is determined by the claims, and the following embodiments are merely means for efficiently explaining the technical spirit of the present invention to those skilled in the art.

1 is a view showing the overall configuration including the desired product joint purchase system according to an embodiment of the present invention.

As shown, the desired product joint purchase system 100 according to an embodiment of the present invention is connected to one or more purchaser terminal 104, the buyer terminal 106 and the seller terminal 108 through the network 102 do. In the present invention, the network 102 is meant to include all types of networks capable of transmitting and receiving data, such as wired, wireless Internet communication networks or wireless portable communication networks. In addition, in the present invention, the terminal refers to any type of information processing apparatus capable of network connection such as a personal computer, a laptop, a mobile phone, a PDA, and the like.

The purchaser terminal 104 is a terminal used by a purchaser wishing to purchase a specific product. The purchaser desires to access the desired product joint purchase system 100 through the purchaser terminal 104 and register information of a product desired to be purchased. The registration of the desired product information may be performed, for example, by directly registering a product name, a product description, a category, a product picture, or the like of the product which the purchaser wishes to purchase directly. The desired product may be registered by selecting a desired product from a list of products previously stored in the purchase system 100. The product list may be registered from another purchaser and stored in the desired product joint purchase system 100, or may be registered by the seller.

The buyer terminal 106 is a terminal used by a buyer who wants to purchase a product. The buyer connects to the desired product joint purchase system 100 through the purchaser terminal 106 and purchases the product currently being sold in the desired product joint purchase system 100.

In this case, the purchaser terminal 104 and the purchaser terminal 106 have different names according to their role, and according to an embodiment, the same terminal functions as the purchaser terminal 104 and the purchaser terminal 106. All of these may be performed or only one of these functions may be performed. For example, if a user of a terminal registers a desired product and then purchases the desired product at the point of time when the desired product is sold, the same terminal purchases the purchaser terminal 104 at the time of registering the desired product and the buyer at the time of purchasing the product. It is to perform the function of the terminal 106. However, the user does not necessarily have to purchase only the desired product that is registered, and may register only the desired product or only purchase the product that is on sale, in this case, the corresponding terminal purchaser terminal 104 according to each performance function. ) Or the purchaser terminal 106.

The seller terminal 108 is a terminal used by a seller to sell a product. The seller receives the information about the desired product registered through the purchaser terminal 104 and the number of purchasers for each desired product from the desired product co-purchase system 100, and the seller sells the product to be sold. Register the desired price. In addition, when the seller is selected as the seller of the product registered by the desired product co-purchase system 100, the seller sells the product to the buyers using the desired product co-purchase system 100.

The desired product joint purchase system 100 is a system for connecting desired purchasers, buyers, and sellers to register desired products and sell desired products registered by a plurality of purchasers. After receiving a desired price of sales for a desired product from a plurality of desired products from one or more sellers, the product sales are relayed between the seller who inputs the lowest price among the sellers and the buyer of the desired product. Detailed configuration of the desired product joint purchase system 100 will be described in FIG.

2 is a block diagram of a desired product joint purchase system 100 according to an embodiment of the present invention.

As shown, the desired product joint purchase system 100 according to an embodiment of the present invention, the desired product registration module 200, database 202, product selection module 204, seller selection module 206, A merchandise sales module 208 and a statistics module 210.

The desired product registration module 200 receives information on desired products (purchase desired product) and purchase wish information from one or more purchaser terminals 104. The information on the desired product to purchase may include one or more of a product name, a product description, a category, a product picture, a URL, a video, or a sound of the desired product.

In the registration of the desired product information, as shown in FIG. 3, a purchaser of a product selects a product to be purchased from a list of products output to the purchaser terminal 104 through the desired product registration module 200. It can be done in a way. For example, when the purchaser wishes to view the product list of FIG. 3 and clicks a "tool-hope" button to the right of the product to be purchased, the corresponding product is registered as the purchase desire product of the purchaser. Alternatively, as illustrated in FIG. 4, a desired product may be registered in a manner of directly registering a product name, a product description, a category, a product picture, or the like of a product which the purchaser wishes to purchase directly. As described above, the product list may be registered from another purchaser, or may be registered from a seller. That is, the seller registers the information of the products he sells in the desired product registration module 200, and the purchaser desires to register the desired product by selecting the desired product from the list of registered products from the seller. Can be.

On the other hand, the desired product registration module 200 receives the information of the purchaser who registered the desired product to purchase along with the desired product. As shown in FIG. 5, the information on the purchaser's information may include at least one of an e-mail account, a phone number, or a social network service ID of the purchaser. Among these, the social network service ID may include a short message service ID such as Me Today, Twitter, a user account of Cyworld or other blog or personal webpage service, and the like.

When the purchaser's information is input as described above, when the purchaser's product registered by the purchaser's purchase item is actually started to be sold, the purchaser's purchaser is transmitted to the purchaser's seller by e-mail or mobile phone text message. May be encouraged to participate in the purchase. In addition, when a purchaser registers a social network service ID, when the product is sold, the purchaser may be notified of the sale of the product by using a social network service registered by the purchaser. In addition, it is of course possible to utilize the information of the purchase candidate not only whether the sale of the commodity is started or not, but also for various events or marketing.

The database 202 stores the desired product information and the purchaser information input through the desired product registration module 200.

The product selection module 204 calculates the number of purchasers for each desired product by using the desired product information and the purchaser information stored in the database 202, and selects a product to sell by comparing the calculated number of purchasers for each desired product. do.

In the selection of the sale product, for example, when the number of desired purchasers for each desired product registered in the database 202 is more than a predetermined value (for example, 100 persons), the corresponding product may be selected as the sale product. Since the price discount effect according to mass purchase is large when the number of purchasers who desire a specific product is greater than or equal to a certain number, the product selection module 204 calculates the number of purchasers for each desired product, and the purchaser is pre-set. Only if the value is exceeded can it be selected for sale. The predetermined value may be appropriately determined according to the type, characteristic or price of the product.

Alternatively, in the selection of the sale product, a predetermined number of desired products may be selected as a sale product in the order of the number of the desired purchasers among the desired products registered in the database 202. That is, since a desired product having a large number of purchasers is highly likely to lead to actual purchase, the product selection module 204 may select it as a sale product.

The seller selecting module 206 receives a desired selling price of a product from one or more sellers with respect to the selling goods selected in the product selecting module 204, and compares the entered selling desired price to sell the selected product. Select a seller to do.

The seller selection module 206 may receive only the selling price of the product regardless of the selling quantity of the product from the sellers, and select the seller who inputs the lowest price among them as the seller of the selected product.

Alternatively, the seller selection module 206 may divide the expected number of purchasers for the selected product into predetermined sections, and receive a desired price for sale from the seller for each section. For example, a desired selling price of a specific product may be configured as shown in Table 1 below.

division 1 to 10 people ~ 50 people ~ 100 people To 500 people To 1000 people ~ 5000 people Seller1 100,000 90,000 85,000 80,000 65,000 63,000 Seller2 80,000 75,000 73,000 70,000 70,000 65,000 Seller 3 80,000 74,000 72,000 71,000 69,000 68,000

That is, in Table 1, the estimated number of buyers of the product is divided into 1 to 10, 11 to 50, 51 to 100, and the like, and each seller inputs a desired selling price for each section. For example, the seller's desired price of 51-100 people in seller 1 is 85,000 won, and the seller's desired price of 101-500 people in seller 2 is 70,000 won.

In this way, when the desired price for sale is input, the seller selection module 206 extracts the number of purchase applicants who registered the selected product as the desired product from the database 202, and the most number in the section to which the number of the desired buyers belongs. A seller who inputs a low desired selling price is selected as a seller to sell the selected product. For example, if the number of final purchasers of the products listed in Table 1 is 80, the seller who bids the lowest price in the section of 80 people, that is, the section of 50 to 100, selects seller 3 as the seller to sell the product. do. At this time, if the number of the final purchasers of the products described in Table 1 is 200, the seller who bids the lowest price in the range of 100 to 500, that is, seller 2 is selected as the seller to sell the product.

As such, when a seller inputs a sales price according to the number of purchasers and selects a seller, the seller can bid an appropriate price according to the supply and demand of the product, and the seller who bids the lowest price for each section is selected. The buyer also has the advantage of purchasing the product at the lowest possible price.

The merchandise sales module 208 relays the sale of the selected merchandise between the seller and the buyer selected in the seller selection module 206. At this time, the product sales module 208 may simply perform a role of simply connecting the seller and the buyer online, and receives the goods from the seller to supply the goods directly to the buyer in the product sales module 208 and the seller The sale may be performed in a manner to settle the sale amount. Such matters related to the sale of goods are the same as the sale of goods in general electronic commerce, and thus detailed description thereof will be omitted.

On the other hand, the commodity sales module 208, when the sale of the selected product is started, the purchaser who registered the selected product as the desired product by using the purchaser information stored in the database 202 of the selected product of the selected product The start of sale can be notified. As described above, when notifying that the sale of the desired product is started by e-mail, text message, or social network service, the user who registers as a purchaser may purchase the actual product, that is, the purchase conversion rate.

In addition, the sale of the commodity may be performed at a fixed period rather than continuing without a specific period. For example, as shown in FIG. 6, buyers can purchase a product only in the corresponding period by setting a sales period such as 12 hours or 24 hours for a specific product and displaying the remaining time until the end of sale for each product. can do. In this way, when the product sales period is specified, buyers can be recognized that "the product cannot be bought cheaply after this time", thereby increasing the purchase rate of the product.

The statistical module 210 uses the desired product information and the purchaser information stored in the database 202 to provide statistical information about which products the buyers wish to purchase or who are the buyers for the specific product. Send to. The statistical information may include, for example, age, gender information, purchase conversion rate information using past purchase information, and the like of a specific purchase desired product.

In addition, after the sale of the selected product is terminated, the statistics module 210 transmits statistical information including the actual product purchase rate of the purchaser who registered the selected product as the desired product to the selected seller. Through this, the selected seller can predict the percentage of sales to be sold in the future when similar products are sold by comparing the number of purchasers and actual buyers of the product, and can use this for a bidding strategy of the selling price. In addition, the statistics module 210 may view the product description after the buyer connects to the desired product co-purchasing system 100, how long does the buyer purchase the product, how long is the purchase cycle of the product, and the price at which the product sale occurs a lot. By calculating various statistical information such as how much and telling the seller, it can help in establishing a sales strategy.

On the other hand, the desired product joint purchase system 100 may further include a separate embedding module (not shown). "Embed" means that the user copies and posts the content on the network. In one embodiment of the present invention, the buyer or purchaser or other user is a blog or web page, etc. by using the embedding module to list the desired product among the products currently registered as a desired product in the database 202 Can be "embedded" with Accordingly, when the user who visited the blog or the web page clicks on the list of the desired product to be posted, the user directly moves to the desired product registration module 200, so that the desired product is desired by the user through his blog or web page. Can be promoted to visitors of their blogs or web pages and encouraged to register desired products.

7 is a flowchart illustrating a method 700 for desired product co-purchase in the desired product co-purchase system 100 according to an embodiment of the present invention.

First, information about the desired product and the desired purchaser information are input from at least one purchaser (702). As described above, the registration of the desired product to be purchased may be performed by a purchaser selecting one or more of the products output to his terminal or directly inputting product information. The purchaser information may also include one or more of an email account, a phone number, or a social network service ID of the purchaser.

Next, the number of desired purchasers for each desired product is calculated by using the inputted desired product information and desired purchaser information, and the product to be sold is selected by comparing the calculated number of desired purchasers for each desired product (704).

As described above, the selection of the selling product may select the corresponding product as the selling product when the number of desired purchasers for each desired product registered in the database 202 is greater than or equal to a predetermined value. Alternatively, a predetermined number of desired products may be selected as a selling product among the desired products registered in the database 202 in the order of increasing the number of desired purchasers.

Next, input the desired selling price of the product selected in the selling product selection step from one or more sellers (706), and compares the selling desired price input from the one or more sellers to sell the selected product. A seller is selected (708).

The selling price input and the seller selection may be performed by receiving only the selling price of the product regardless of the selling quantity of the product from the seller, and selecting the seller who inputs the lowest price as the seller of the selected product. It can be performed as. Alternatively, the expected number of purchasers for the selected product is divided into predetermined sections, and after receiving input of a desired price for sale from the seller for each section, a seller who selects a seller who presents the lowest price in a section to which the number of final purchasers belongs. You can also choose the method. Since this has been described in detail with reference to FIG. 2, the description thereof is omitted here.

According to an embodiment, the method may further include transmitting statistical information including the inputted desired product information and purchaser information to the seller after performing step 704 and before performing step 706.

When the seller is selected as described above, the sales of the selected product are then relayed between the selected seller and the buyer (710).

As described above, the sale of the merchandise may not be continued without a specific period, but may be made at a fixed period. That is, by setting a sales period such as 12 hours or 24 hours for a specific product and displaying the remaining time until the end of sale for each product, buyers can purchase the product only in the corresponding period.

Meanwhile, when performing step 710, the method may further include informing a purchaser who registers the selected product as a desired product to start the sale of the selected product. As described above, when notifying the start of sale of the desired product through an e-mail, a text message, or a social network service, the user who registers as a purchaser may purchase the actual product, that is, increase the purchase conversion rate.

In addition, after performing step 710, the method may further include transmitting statistical information including an actual product purchase rate of the purchaser who registered the selected product as the desired product to the selected seller.

Meanwhile, an embodiment of the present invention may include a computer readable recording medium including a program for performing the methods described herein on a computer. The computer-readable recording medium may include program instructions, local data files, local data structures, etc. alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those skilled in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, magnetic-optical media such as floppy disks, and ROM, RAM, flash memory, and the like. Hardware devices specifically configured to store and execute program instructions are included. Examples of program instructions may include high-level language code that can be executed by a computer using an interpreter as well as machine code such as produced by a compiler.

Although the present invention has been described in detail with reference to exemplary embodiments above, those skilled in the art to which the present invention pertains can make various modifications to the above-described embodiments without departing from the scope of the present invention. Will understand.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

1 is a diagram showing an entire network including a desired product joint purchase system according to an embodiment of the present invention.

2 is a block diagram of a desired product joint purchase system 100 according to an embodiment of the present invention.

3 is a diagram illustrating an embodiment of selecting a product to be purchased from a list of products output according to an embodiment of the present invention.

4 is a view illustrating an embodiment of receiving information of a product desired to purchase according to an embodiment of the present invention.

5 is a view showing an embodiment for receiving the information of the purchaser according to an embodiment of the present invention.

FIG. 6 is a diagram illustrating an embodiment of outputting a list of goods currently on sale according to an embodiment of the present invention.

7 is a flowchart illustrating a method 700 for desired product co-purchase in the desired product co-purchase system 100 according to an embodiment of the present invention.

Claims (19)

A desired product registration module for receiving information on desired products and information on desired products from one or more desired purchasers; A database storing the desired product information and the purchaser information input through the desired product registration module; A product selection module configured to calculate a number of purchasers for each desired product by using the desired product information and purchaser information stored in the database, and select a product to sell by comparing the calculated number of purchasers for each desired product; A seller selection module configured to receive a desired selling price of a product selected in the product selecting module from one or more sellers, and to select a seller to sell the selected product by comparing the input desired selling price; And A merchandise sales module for relaying sales of the selected merchandise between a seller selected from the seller selection module and a buyer; Desired product joint purchase system comprising a. The method of claim 1, The desired product registration module directly receives information of a product desired to be purchased from the purchaser, or outputs a list of products registered by the seller to the purchaser, and displays the products desired by the buyer. The desired product joint purchase system for receiving the desired product information by receiving a selection value. The method of claim 2, The desired product information includes one or more of a product name, a product description, a category, a product picture, a URL, a video, and a sound of the desired product. The method of claim 1, And the purchaser information includes one or more of an email, a phone number, or a social network service ID of the purchaser. The method of claim 1, The product selection module, The desired product joint purchase system which selects the said specific desired product as a sale product, when the number of the purchaser who registered the specific desired product is more than predetermined value. The method of claim 1, The product selection module, The desired product joint purchase system which selects a predetermined number of desired products as a sale product from the said desired products registered in the said database in order of the largest number of purchasers. The method of claim 1, The seller selection module divides the expected number of purchasers for the selected product into predetermined sections, and receives a desired price for sale from the seller for each section. The method of claim 7, wherein The seller selection module extracts the number of purchase applicants who registered the selected product as a desired product from the database, and sells the selected product to a seller who inputs the lowest desired price for sale in the section to which the number of the purchase buyers belongs. Pre-purchase system for selecting desired sellers. The method of claim 1, When the sale of the selected product is started, the merchandise sales module notifies the purchaser who registered the selected product as the desired product by using the purchaser information stored in the database to notify the start of the sale of the selected product. Desired commodity purchasing system. The method of claim 1, A statistics module for transmitting statistical information including the desired product information stored in the database, the purchaser information and the actual product purchase rate of the purchaser who registered the selected product as the desired product to the selected seller; Hope product joint purchase system further comprising. In the desired product co-purchase system, receiving information about the desired product to be purchased from the one or more purchasers and the purchaser information; In the desired product joint purchase system, calculating the number of desired purchasers for each desired product by using the inputted desired product information and desired purchaser information, and selecting a product to sell by comparing the calculated number of desired purchasers for each desired product ; In the desired product joint purchase system, receiving input of a desired price for selling the product selected in the selling product selecting step from one or more sellers; In the desired product joint purchase system, selecting a seller to sell the selected product by comparing the desired sales price input from the one or more sellers; And In the desired product joint purchase system, relaying a sale of the selected product between the selected seller and the buyer; Desired product joint purchase method comprising a. The method of claim 11, The selling product selection step, The desired product joint purchase method, wherein the specific desired product is selected as a selling product when the number of desired purchasers who register a specific desired product is equal to or more than a predetermined value. The method of claim 11, The selling product selection step, The desired product co-purchasing method of selecting a desired number of desired products as a sale product in the order of the number of purchasers among the desired products registered in the database. The method of claim 11, After performing the selling product selection step, before performing the step of receiving the desired sales price, In the desired product co-purchase system, the method further comprising the step of transmitting statistical information including the desired product information and the purchaser information to the seller, desired product co-purchase method. The method of claim 11, The step of receiving the sales desired price, Desired product joint purchase method for dividing the expected number of purchasers for the product selected in the product selection step into a predetermined section, inputting the desired price for sale from the seller for each section. The method of claim 15, The seller selection step, In the desired product information input step, the desired product co-purchasing method for selecting the seller who inputs the lowest desired sales price in the section to which the number of purchasers who registered the selected product as the desired product as the seller to sell the selected product . The method of claim 11, The merchandise sales step, If the sale of the selected product is started, further comprising the step of notifying the purchaser who registered the selected product as the desired product by using the purchaser information stored in the database, notifying the start of the sale of the selected product. How to buy commodities. The method of claim 11, And after performing the product selling step, transmitting statistical information including the actual product purchase rate of the purchaser who registered the selected product as the desired product to the selected seller. A computer-readable recording medium having recorded thereon a program for performing the method according to any one of claims 11 to 18 on a computer.

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