Electronic flea market server, management method and program

Abstract

To provide an electronic flea market server or the like that estimates a market price for a product which is purchased on an electronic marketplace and to which a product distribution code is not assigned, and promotes listing of that product to an electronic flea market.SOLUTION: A purchase history acquisition unit 101 of an electronic flea market server 100 acquires a purchase history of a product purchased by a user on an electronic marketplace. In a case in which a product distribution code is not assigned to the product of the purchase history, a market price acquisition unit 102 acquires, on the basis of a product distribution code assigned to a similar product of the product of the purchase history, a market price of a used similar product, and estimates, on the basis of the market price of the used similar product, a market price of the used product of the product of the purchase history. An output unit 103 outputs a message promoting listing of the product of the purchase history to an electronic flea market at the market price of the used product.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an electronic flea market server, a management method, and a program. [Background technology]

[0002] There is known a technology that presents market prices to users in order to encourage them to put items up for sale in electronic flea markets, online auctions, etc. For example, Patent Literature 1 discloses a technology that acquires market price information on a secondhand item recycling market, and transmits a recommendation to the user to sell an item that the user previously purchased to a third party together with the acquired market price information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-122780 A Summary of the Invention [Problem to be solved by the invention]

[0004] On the other hand, there is a demand to display to users the market price of products purchased on an online flea market in order to encourage users to sell the products they have purchased on the online market in the online flea market. However, in an online market where various shops sell products, there are many products that do not have product distribution codes, and it is difficult to find the market price of such products.

[0005] The present invention is devised to solve the above-mentioned problems, and aims to provide an electronic flea market server, management method, and program that are capable of estimating the market price in an electronic flea market for products purchased in an online market that do not have a product distribution code, and encouraging the listing of products in the electronic flea market. [Means for solving the problem]

[0006] An electronic flea market server according to a first aspect of the present invention comprises: An electronic flea market server for managing an electronic flea market, a purchase history acquisition unit that acquires a purchase history of a product purchased by a user on an online market from an online market server that manages the online market; a market price acquisition unit for acquiring a market price of a second-hand product, which is a second-hand product related to the acquired purchase history, in the electronic flea market; an output unit that outputs a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product on the electronic flea market; Equipped with The market price acquisition unit includes: If the product related to the acquired purchase history does not have a product distribution code, A product distribution code given to a similar product similar to the product related to the acquired purchase history is acquired from the electronic market server, a market price of a similar second-hand product which is a second-hand product of the similar product is acquired based on the acquired product distribution code, and a market price of the second-hand product of the product related to the acquired purchase history is estimated based on the acquired market price of the similar second-hand product. It is characterized by:

[0007] In addition, in the electronic flea market server according to the above aspect, The market price acquisition unit includes: If a product distribution code is assigned to the product related to the acquired purchase history, The second-hand market price of the product related to the acquired purchase history is acquired based on the assigned product distribution code. It is characterized by:

[0008] In addition, in the electronic flea market server according to the above aspect, If a product distribution code is attached to the product purchased by the user on the online market, the purchase history acquisition unit acquires from the electronic market server a purchase history including the assigned product distribution code and information on a purchase price and a purchase time of a product purchased by the user on the electronic market; If a product distribution code is not attached to the product purchased by the user on the online market, The purchase history acquisition unit acquires, from the electronic market server, a purchase history including a product distribution code given to a product similar to the product purchased by the user on the electronic market, and information on a purchase price and a purchase time of the product purchased by the user on the electronic market. It is characterized by:

[0009] In addition, in the electronic flea market server according to the above aspect, The market price acquisition unit includes: If a product distribution code is assigned to the product related to the acquired purchase history, correcting the market price of the second-hand product based on the purchase price and the purchase time; If the product related to the acquired purchase history does not have a product distribution code, The market price of the acquired similar used product is corrected based on the purchase price and the purchase time. It is characterized by:

[0010] In addition, in the electronic flea market server according to the above aspect, The market price acquisition unit includes: estimating a depreciation rate based on the selling price of a new product related to the acquired purchase history in the electronic market and the market price of the second-hand product acquired; Correcting the market price of the acquired second-hand goods based on the estimated depreciation rate, the purchase price, and the purchase time. It is characterized by:

[0011] In addition, in the electronic flea market server according to the above aspect, The market price acquisition unit includes: Estimating a depreciation rate based on a selling price of a new similar product similar to the product related to the acquired purchase history in the electronic market and a market price of the second-hand similar product acquired; Correcting the market price of the acquired similar used goods based on the estimated depreciation rate, the purchase price, and the purchase time. It is characterized by:

[0012] A management method according to a second aspect of the present invention comprises: A management method executed by an electronic flea market server that manages an electronic flea market, comprising: a purchase history acquisition step of acquiring a purchase history of a product purchased by a user on an online market from an online market server that manages the online market; a market price acquisition step of acquiring a market price of a second-hand product, which is a second-hand product related to the acquired purchase history, in the electronic flea market; an output step of outputting a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product on the electronic flea market; Including, In the step of acquiring the market price, If the product related to the acquired purchase history does not have a product distribution code, A product distribution code given to a similar product similar to the product related to the acquired purchase history is acquired from the electronic market server, a market price of a similar second-hand product which is a second-hand product of the similar product is acquired based on the acquired product distribution code, and a market price of the second-hand product of the product related to the acquired purchase history is estimated based on the acquired market price of the similar second-hand product. It is characterized by:

[0013] A program according to a third aspect of the present invention comprises: A program for causing a computer to function as an electronic flea market server for managing an electronic flea market, a purchase history acquisition unit that acquires a purchase history of products purchased by a user on an online market from an online market server that manages the online market; a market price acquisition unit for acquiring a market price of a second-hand product, which is a second-hand product related to the acquired purchase history, in the electronic flea market; an output unit that outputs a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product on the electronic flea market; Functioning as a The market price acquisition unit includes: If the product related to the acquired purchase history does not have a product distribution code, A product distribution code given to a similar product similar to the product related to the acquired purchase history is acquired from the electronic market server, a market price of a similar second-hand product which is a second-hand product of the similar product is acquired based on the acquired product distribution code, and a market price of the second-hand product of the product related to the acquired purchase history is estimated based on the acquired market price of the similar second-hand product. It is characterized by:

[0014] The above program may be recorded on a non-transitory recording medium. The non-transitory recording medium can be distributed and sold independently of the computer. Here, the non-transitory recording medium refers to a tangible recording medium. Examples of the non-transitory recording medium include a compact disc, a flexible disc, a hard disk, a magneto-optical disk, a digital video disk, a magnetic tape, and a semiconductor memory. In addition, the transitory recording medium refers to the transmission medium (propagation signal) itself. Examples of the transitory recording medium include an electric signal, an optical signal, and an electromagnetic wave. In addition, the temporary storage area is an area for temporarily storing data and programs, and is, for example, a volatile memory such as a RAM (Random Access Memory). Effect of the Invention

[0015] According to the present invention, it is possible to provide an electronic flea market server, management method, and program that can estimate the market price in an electronic flea market for products purchased on an electronic market that do not have a product distribution code and encourage the listing of products in the electronic flea market. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a diagram showing the relationship between an online flea market server, an online market server, and user terminals according to the embodiment. [Diagram 2] FIG. 2 is a diagram illustrating a hardware configuration of an electronic flea market server according to an embodiment. [Diagram 3] FIG. 2 is a diagram illustrating a functional configuration of an electronic flea market server according to an embodiment. [Figure 4] FIG. 11 is a diagram illustrating an example of a purchase history table according to the embodiment. [Diagram 5] FIG. 11 is a diagram illustrating an example of a message according to the embodiment. [Figure 6] 10 is a flowchart showing a management process according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] (1. Overall Configuration) As shown in FIG. 1, an online flea market server 100 according to an embodiment of the present invention is communicatively connected to an online market server 200 and a user terminal 300 via a computer communication network 400 such as the Internet.

[0018] The electronic flea market server 100 is a server that manages the electronic flea market. For example, in response to a request from a user terminal 300, the electronic flea market server 100 provides information on products put up for sale in the electronic flea market and executes a purchasing process.

[0019] The online market server 200 is a server that manages the online market. For example, the online market server 200 provides information on products being sold in the online market and executes purchasing processes in response to requests from the user terminal 300. The online market server 200 also manages the purchase history of users in the online market.

[0020] The user terminal 300 is a terminal of a user who uses the electronic flea market managed by the electronic flea market server 100 and the electronic market managed by the electronic market server 200. The user terminal 300 is, for example, a personal computer, a smartphone, a tablet computer, etc. A user browses products offered for sale in the electronic flea market and performs procedures for purchasing products, etc., via the user terminal 300. A user also browses products sold in the electronic market and performs procedures for purchasing products, etc., via the user terminal 300.

[0021] (2. Hardware configuration of the electronic flea market server) FIG. 2 is a block diagram showing the hardware configuration of the electronic flea market server 100. As shown in FIG.

[0022] 2, the electronic flea market server 100 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM 13, a recording medium 14, an output device 15, a communication device 16, and an input device 17. The components are connected to each other via a bus 18.

[0023] The CPU 11 controls the overall operation of the electronic flea market server 100, and is connected to each of the components to exchange control signals and data.

[0024] The ROM 12 stores operating programs and various data necessary for controlling the overall operation of the electronic flea market server 100 .

[0025] The RAM 13 is for temporarily storing data and programs, and holds programs and data read from the recording medium 14, as well as other data necessary for communication.

[0026] The recording medium 14 is composed of a hard disk, a flash memory, or the like, and records data to be processed by the electronic flea market server 100 .

[0027] The output device 15 includes a display device such as an LCD (Liquid Crystal Display) and an audio output device such as a speaker. The output device 15 outputs, for example, data output from the CPU 11 under the control of the CPU 11.

[0028] The communication device 16 includes a communication interface for connecting the electronic flea market server 100 to a computer communication network 400 such as the Internet, and communicates with other information processing devices and the like via the communication device 16 .

[0029] The input device 17 includes an input device such as a button, a keyboard, a touch panel, a microphone, a camera, an optical scanner, etc. The input device 17 receives an operation input from a user of the electronic flea market server 100, and outputs a signal corresponding to the received operation input to the CPU 11.

[0030] (3. Functional configuration of the electronic flea market server according to the embodiment) The functional configuration of the electronic flea market server 100 will be described with reference to FIG.

[0031] The electronic flea market server 100 functionally comprises a purchase history acquisition unit 101, a market price acquisition unit 102, and an output unit 103. In this embodiment, the CPU 11 and the communication device 16 cooperate to function as the purchase history acquisition unit 101, the market price acquisition unit 102, and the output unit 103.

[0032] The purchase history acquisition unit 101 acquires the purchase history of products that a user has purchased on an online market from an online market server 200 that manages the online market.

[0033] The purchase history is a history of products purchased by a user on an online market, and is managed by the online market server 200. For example, the online market server 200 manages information on the purchase price and purchase time of products purchased by a user on an online market as the purchase history. Furthermore, if a product distribution code is assigned to a product purchased by a user on an online market, the online market server 200 manages the product distribution code assigned to the purchased product as the purchase history, and if a product distribution code is not assigned to a product purchased by a user on an online market, the online market server 200 manages a product distribution code assigned to a product similar to the product purchased by the user on an online market as the purchase history.

[0034] The product distribution code is a code for identifying a product, such as a JAN (Japanese Article Number) code or a unique code given in an electronic marketplace.

[0035] A similar product is a product similar to a product purchased by a user on an electronic marketplace, and is a product that is arbitrarily defined as being similar from various standpoints, such as category, manufacturer, shape, color, and the like.

[0036] For example, if a product P1 purchased by user U1 on the online market is assigned a product distribution code, the online market server 200 manages the product distribution code of product P1, the purchase price of product P1, and the purchase time of product P1 as the purchase history of user U1. On the other hand, if a product P2 purchased by user U2 on the online market is not assigned a product distribution code, the online market server 200 searches for a similar product that is similar to product P2 and assigned a product distribution code, and manages the product distribution code of similar product P3 found by the search, the purchase price of product P2, and the purchase time of product P2 as the purchase history of user U2.

[0037] Therefore, if a product distribution code is assigned to a product purchased by a user on an online market, the purchase history acquisition unit 101 acquires from the online market server 200 a purchase history including the assigned product distribution code and information on the purchase price and purchase time of the product purchased by the user on the online market, and if a product distribution code is not assigned to a product purchased by a user on an online market, the purchase history acquisition unit 101 acquires from the online market server 200 a purchase history including a product distribution code assigned to a similar product that is similar to the product purchased by the user on the online market, and information on the purchase price and purchase time of the product purchased by the user on the online market.

[0038] FIG. 4 shows an example of a table in which information on the purchase history acquired by the purchase history acquisition unit 101 is registered. In the purchase history table of FIG. 4, a user ID for identifying a user, a product name of a product purchased by the user, a product distribution code of a product purchased by the user, a product name of a similar product similar to the product purchased by the user, a product distribution code of a similar product, a purchase price of the product purchased by the user, and a purchase time are registered in association with each other. The record in the first row of the purchase history table indicates that the product P1 purchased by the user U1 is assigned a product distribution code "xxxx-xxxx", the purchase price of the product P1 is "1980 yen", and the product was purchased on "June 3, 2023". The record in the second row of the purchase history table indicates that the product P2 purchased by the user U2 is not assigned a product distribution code, the product distribution code "yyyy-yyyy" is assigned to a similar product P3 similar to the product P2, the purchase price of the product P2 is "3000 yen", and the product was purchased on "June 3, 2023". The purchase history table is stored, for example, in the recording medium 14 of the electronic flea market server 100 .

[0039] The market price acquisition unit 102 acquires the market price of a second-hand item, which is a second-hand item of the product related to the acquired purchase history, in the electronic flea market.

[0040] The market price is the price at which a used item is expected to sell if it were put up for sale today, based on the prices at which it has been sold in the past.

[0041] Here, if a product distribution code is assigned to the product related to the acquired purchase history, the market price acquisition unit 102 acquires the market price of the second-hand product of the product related to the acquired purchase history based on the assigned product distribution code.

[0042] For example, since the product P1 related to the purchase history of the user U1 is assigned the product distribution code "xxxx-xxxx", the market price acquisition unit 102 searches for second-hand products of the product P1 assigned the product distribution code "xxxx-xxxx" in the electronic flea market. Next, the market price acquisition unit 102 acquires the price at which a sale was concluded for the second-hand product P1 identified by the search. Then, when the market price acquisition unit 102 acquires a plurality of prices at which a sale was concluded for the second-hand product P1, it acquires a statistical value such as the average, median, or mode of the prices at which the sale was concluded as the market price of the second-hand product P1. Also, when the market price acquisition unit 102 acquires one price at which a sale was concluded for the second-hand product P1, it acquires that price as the market price of the second-hand product P1.

[0043] In addition, if a product distribution code is not assigned to the product related to the acquired purchase history, the market price acquisition unit 102 acquires from the electronic market server 200 a product distribution code assigned to a similar product that is similar to the product related to the acquired purchase history, acquires the market price of a similar used product that is a second-hand product of the similar product based on the acquired product distribution code, and estimates the market price of the second-hand product of the product related to the acquired purchase history based on the acquired market price of the similar used product.

[0044] For example, since the product P2 related to the purchase history of the user U2 does not have a product distribution code, the market price acquisition unit 102 acquires the product distribution code "yyyy-yyyy" assigned to the similar product P3 similar to the product P2 included in the purchase history, and searches the electronic flea market for a used similar product that is a used product of the similar product P3 to which the product distribution code "yyyy-yyyy" is assigned. Next, the market price acquisition unit 102 acquires the price at which a sale is concluded for the used similar product of the similar product P3 identified by the search. Then, when the market price acquisition unit 102 acquires a plurality of prices at which a sale is concluded for the used similar product of the similar product P3, it acquires a statistical value such as the average, median, or mode of the prices at which the sale is concluded, or a range of the prices at which the sale is concluded, as the market price of the used similar product of the similar product P3. Furthermore, when the market price acquisition unit 102 acquires one price at which a sale has been concluded for a used similar product of the similar product P3, it acquires that price as the market price of the used similar product of the similar product P3. The market price acquisition unit 102 regards the market price of the used similar product of the similar product P3 as the market price of the used product of the product P2.

[0045] In addition, if a product distribution code has been assigned to the product related to the acquired purchase history, the market price acquisition unit 102 may correct the market price of the acquired second-hand product based on the purchase price and purchase time.

[0046] Specifically, the market price acquisition unit 102 estimates the depreciation rate based on the selling price of a new item related to the acquired purchase history in the electronic market and the market price of the acquired used item, and corrects the market price of the acquired used item based on the estimated depreciation rate, the purchase price, and the purchase time.

[0047] For example, in the electronic market, the current selling price of a new product P1 is “2000 yen”, in the electronic flea market, the market price of a second-hand product of product P1 is “1280 yen”, the release date of product P1 is “December 10, 2021”, and the current date is “August 1, 2023”. In this case, the market price acquisition unit 102 calculates the difference between the selling price “2000 yen” and the market price of the second-hand product “1280 yen”, and divides the difference by the number of days from the release date “December 10, 2021” to the current date “August 1, 2023”, “600”, to calculate the daily depreciation rate “1.2”. Then, since 60 days have passed since the date when user U1 purchased product P1, "June 3, 2023", to the present, "August 1, 2023", the market price acquisition unit 102 determines that the market price of the used product is "1,908 yen", calculated by subtracting the depreciation rate of "1.2" multiplied by the number of days, "60", from the price at which user U1 purchased product P1, "1,980 yen".

[0048] In addition, if a product distribution code is not assigned to the product related to the acquired purchase history, the market price acquisition unit 102 may correct the market price of the acquired similar used product based on the purchase price and purchase time.

[0049] Specifically, the market price acquisition unit 102 estimates the depreciation rate based on the new selling price of a similar product that is similar to the product related to the acquired purchase history in the electronic market and the acquired market price of the similar used product, and corrects the market price of the acquired similar used product based on the estimated depreciation rate, the purchase price, and the purchase time.

[0050] For example, in the electronic market, the current new selling price of similar product P3 is "3200 yen", in the electronic flea market, the market price of a used product similar to similar product P3 is "2800 yen", the release date of similar product P3 is "January 14, 2023", and the current date is "August 1, 2023". In this case, the market price acquisition unit 102 calculates the difference between the selling price "3200 yen" and the market price of the used similar product "2800 yen", and divides the difference by the number of days "200" from the release date "January 14, 2023" to the current date "August 1, 2023" to calculate the daily depreciation rate "2.0". Since "60 days" have passed since "June 3, 2023", the date when user U2 purchased product P2, to the present, "August 1, 2023", the market price acquisition unit 102 determines the market price of the similar second-hand product to be "2880 yen", which is the value obtained by subtracting the depreciation rate "2.0" multiplied by the number of days "60" from the price "3000 yen" when user U2 purchased product P2. The market price acquisition unit 102 regards the corrected market price of the similar second-hand product, "2880 yen", as the market price of the second-hand product of product P2.

[0051] The output unit 103 outputs a message urging the user to put up for sale, in the electronic flea market, the product related to the acquired purchase history at the acquired market price of the second-hand product.

[0052] FIG. 5 shows an example of the message to be output. The message 500 includes text 501 indicating the market price of the acquired second-hand product, an image 502 of the product purchased by the user in the electronic market, information 503 of the purchase price at which the user purchased the product, and a button 504 for the user to put the product purchased by the user on the electronic flea market. Information on the time of purchase may be displayed together with the purchase price information. The message 500 in FIG. 5 is sent, for example, to the email address of the user U2 and displayed on the screen of the user terminal 300. The market price of the product P2 indicated in the text 501 is the market price of the corrected second-hand similar product P3 similar to the product P2. The user U2 can refer to the market price of the product P2 indicated in the text 501 to determine whether or not to put the product P2 on sale. When the user U2 selects the button 504, the page transitions to a listing procedure page provided by the electronic flea market server 100.

[0053] (4. Operation of Management Process of the Electronic Flea Market Server of the Embodiment) The management process executed by the electronic flea market server 100 of this embodiment will be described with reference to Fig. 6. The management process of Fig. 6 is started at any timing set by the administrator of the electronic flea market server 100.

[0054] The purchase history acquisition unit 101 acquires the purchase history of a product purchased by a user on an online market from the online market server 200 that manages the online market (step S101). Next, the market price acquisition unit 102 determines whether or not a product distribution code has been assigned to the product related to the acquired purchase history (step S102).

[0055] For example, the purchase history acquisition unit 101 acquires from the online market server 200 the purchase history of a user who purchased a product on "June 3, 2023", and registers the acquired purchase history information in the purchase history table. Next, the market price acquisition unit 102 determines whether a product distribution code has been assigned to the product related to the purchase history purchased on "June 3, 2023".

[0056] When the market price acquisition unit 102 determines that a product distribution code is assigned to the product related to the acquired purchase history (step S102; YES), it acquires the market price of the second-hand product of the product related to the acquired purchase history based on the assigned product distribution code (step S103). On the other hand, when the market price acquisition unit 102 determines that a product distribution code is not assigned to the product related to the acquired purchase history (step S102; NO), it acquires the product distribution code assigned to a similar product similar to the product related to the acquired purchase history, acquires the market price of a similar second-hand product that is a second-hand product of the similar product based on the acquired product distribution code, and estimates the market price of the second-hand product of the product related to the acquired purchase history based on the acquired market price of the similar second-hand product (step S104).

[0057] For example, since the product P1 related to the purchase history of the user U1 is assigned a product distribution code "xxxx-xxxx", the market price acquisition unit 102 searches for second-hand products of the product P1 assigned with the product distribution code "xxxx-xxxx" in the electronic flea market. Then, the market price acquisition unit 102 acquires the average price at which the second-hand products of the product P1 identified by the search were sold as the market price of the second-hand products of the product P1. Meanwhile, since the product P2 related to the purchase history of the user U2 is not assigned a product distribution code, the market price acquisition unit 102 searches for second-hand products similar to the similar product P3 assigned with the product distribution code "yyyy-yyyy" in the electronic flea market. Then, the market price acquisition unit 102 acquires the average price at which sales were concluded for used similar products of the similar product P3 identified by the search as the market price of the used similar products of the similar product P3, and regards the market price of the used similar products of the similar product P3 as the market price of used products of the product P2.

[0058] The output unit 103 outputs a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product in the electronic flea market (step S105).

[0059] For example, the output unit 103 sends the message 500 in FIG. 5 to the email address of the user U2.

[0060] According to this embodiment, even for products sold on the online market that do not have a product distribution code, the market price in the online flea market can be estimated and the market price in the online flea market of the product purchased on the online market can be presented to the user, thereby encouraging the user to put various products purchased on the online market up for sale on the online flea market.

[0061] Furthermore, according to this embodiment, the market price can be corrected based on the purchase price and purchase time when the user purchased the product on the online market, thereby making it possible to obtain a market price that is appropriate for the circumstances under which the user purchased the product on the online market.

[0062] (6. Modifications) Although the embodiment of the present invention has been described above, various modifications and applications are possible in carrying out the present invention.

[0063] In the above embodiment, the selling price of a new product is the current selling price of the new product in the electronic market, but this is not limited to this. The selling price of a new product may be the past selling price of the new product in the electronic market, for example, the selling price at the time of release.

[0064] In the above embodiment, the depreciation rate estimated by the market price acquisition unit 102 is a daily depreciation rate, but this is not limited to the above. For example, the depreciation rate may be calculated using the straight-line method in which the same amount is depreciated every year, or the declining balance method in which the same depreciation rate is used every year. When the market price acquisition unit 102 corrects the market price of the second-hand product and the market price of the similar second-hand product acquired based on the estimated depreciation rate, the purchase price, and the purchase time, it may set a lower limit for the market price of the second-hand product and the market price of the similar second-hand product. This makes it possible to calculate the market price in consideration of the trading circumstances of each product, such as the fact that the price of a second-hand product can only fall to a certain extent.

[0065] In the above embodiment, the output unit 103 transmits the message 500 to the user terminal 300, but this is not limiting. For example, when the user logs in to the site of an online flea market or online market, the output unit 103 may display on the screen a message including the market price of the product purchased by the user.

[0066] In addition, by applying a program that specifies the operation of the electronic flea market server 100 according to the above embodiment to an existing personal computer or information terminal device, it is also possible to cause the personal computer or information terminal device to function as the electronic flea market server 100 according to the embodiment.

[0067] The present invention allows various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are for the purpose of explaining the present invention and do not limit the scope of the present invention. That is, the scope of the present invention is indicated by the claims, not the embodiments. Various modifications made within the scope of the claims and the scope of the invention equivalent thereto are considered to be within the scope of the present invention. [Industrial Applicability]

[0068] According to the present invention, it is possible to provide an electronic flea market server, management method, and program that can estimate the market price in an electronic flea market for products purchased on an electronic market that do not have a product distribution code and encourage the listing of products in the electronic flea market. [Explanation of symbols]

[0069] 11 CPU 12 ROM 13 RAM 14 Recording media 15 Output Devices 16 Communication Devices 17 Input Devices 18 Bus 100 Electronic Flea Market Servers 101 Purchase History Acquisition Department 102 Market Price Acquisition Section 103 Output section 200 Electronic Market Server 300 User terminals 400 Computer Communication Network

Claims

1. An electronic flea market server for managing an electronic flea market, a purchase history acquisition unit that acquires a purchase history of a product purchased by a user on an online market from an online market server that manages the online market; a market price acquisition unit for acquiring a market price of a second-hand product, which is a second-hand product related to the acquired purchase history, in the electronic flea market; an output unit that outputs a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product on the electronic flea market; Equipped with The market price acquisition unit includes: If the product related to the acquired purchase history does not have a product distribution code, A product distribution code given to a similar product similar to the product related to the acquired purchase history is acquired from the electronic market server, a market price of a similar second-hand product which is a second-hand product of the similar product is acquired based on the acquired product distribution code, and a market price of the second-hand product of the product related to the acquired purchase history is estimated based on the acquired market price of the similar second-hand product.

1. An electronic flea market server comprising:

2. The market price acquisition unit includes: If a product distribution code is assigned to the product related to the acquired purchase history, The second-hand market price of the product related to the acquired purchase history is acquired based on the assigned product distribution code.

2. The electronic flea market server of claim 1.

3. If a product distribution code is attached to the product purchased by the user on the online market, the purchase history acquisition unit acquires from the electronic market server a purchase history including the assigned product distribution code and information on a purchase price and a purchase time of a product purchased by the user on the electronic market; If a product distribution code is not attached to the product purchased by the user on the online market, The purchase history acquisition unit acquires, from the electronic market server, a purchase history including a product distribution code given to a product similar to the product purchased by the user on the electronic market, and information on a purchase price and a purchase time of the product purchased by the user on the electronic market.

3. The electronic flea market server of claim 2.

4. The market price acquisition unit includes: If a product distribution code is assigned to the product related to the acquired purchase history, correcting the market price of the second-hand product based on the purchase price and the purchase time; If the product related to the acquired purchase history does not have a product distribution code, The market price of the acquired similar used product is corrected based on the purchase price and the purchase time.

4. The electronic flea market server of claim 3.

5. The market price acquisition unit includes: estimating a depreciation rate based on the selling price of a new product related to the acquired purchase history in the electronic market and the market price of the second-hand product acquired; Correcting the market price of the acquired second-hand goods based on the estimated depreciation rate, the purchase price, and the purchase time.

5. The electronic flea market server of claim 4.

6. The market price acquisition unit includes: Estimating a depreciation rate based on a selling price of a new similar product similar to the product related to the acquired purchase history in the electronic market and a market price of the second-hand similar product acquired; Correcting the market price of the acquired similar used goods based on the estimated depreciation rate, the purchase price, and the purchase time.

5. The electronic flea market server of claim 4.

7. A management method executed by an electronic flea market server that manages an electronic flea market, comprising: a purchase history acquisition step of acquiring a purchase history of a product purchased by a user on an online market from an online market server that manages the online market; a market price acquisition step of acquiring a market price of a second-hand product, which is a second-hand product of the product related to the acquired purchase history, in the electronic flea market; an output step of outputting a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product on the electronic flea market; Including, In the step of acquiring the market price, If the product related to the acquired purchase history does not have a product distribution code, A product distribution code given to a similar product similar to the product related to the acquired purchase history is acquired from the electronic market server, a market price of a similar second-hand product which is a second-hand product of the similar product is acquired based on the acquired product distribution code, and a market price of the second-hand product of the product related to the acquired purchase history is estimated based on the acquired market price of the similar second-hand product. A management method comprising:

8. A program for causing a computer to function as an electronic flea market server for managing an electronic flea market, a purchase history acquisition unit that acquires a purchase history of products purchased by a user on an online market from an online market server that manages the online market; a market price acquisition unit for acquiring a market price of a second-hand product, which is a second-hand product related to the acquired purchase history, in the electronic flea market; an output unit that outputs a message urging the user to put up for sale the product related to the acquired purchase history at the acquired market price of the second-hand product on the electronic flea market; Function as a The market price acquisition unit includes: If the product related to the acquired purchase history does not have a product distribution code, A product distribution code given to a similar product similar to the product related to the acquired purchase history is acquired from the electronic market server, a market price of a similar second-hand product which is a second-hand product of the similar product is acquired based on the acquired product distribution code, and a market price of the second-hand product of the product related to the acquired purchase history is estimated based on the acquired market price of the similar second-hand product. A program characterized by:

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