Re-sma Inc.

📊 Dataset Overview This dataset offers a comprehensive view of Japan's reuse and e-commerce market, aggregated from 30 of the country's top consumer-to-consumer (C2C) and business-to-consumer (B2C) platforms. With over 100 million real transactions annually, the data spans both new and secondhand goods, enabling deep insights into market pricing, product life cycles, consumer demand, and resale value across major categories. Data is collected from a wide variety of sources, including flea market apps, auction sites, online malls, and leading buyback services. The dataset is fully structured, anonymized, and ready for integration into analytics tools, dashboards, or machine learning models. 🛒 Target Platforms The dataset aggregates transaction data from a wide range of e-commerce platforms in Japan, categorized as follows: Consumer-to-Consumer (C2C) Marketplaces These platforms enable individuals to sell directly to other individuals, making them central to Japan’s thriving secondhand economy.

・ Yahoo! Auctions (ヤフオク) – Japan’s largest online auction platform ・ Rakuten Rakuma (楽天ラクマ) – A flea market app operated by Rakuten ・ Mercari (メルカリ) – Japan’s most popular C2C marketplace app ・Mussubi (ムスビー) – A specialized resale platform for smartphones and electronics Mall-type E-commerce (B2C & C2C Hybrid) These platforms feature a mix of individual sellers and official retailers, offering both new and used goods.

・Yahoo! Shopping – A major Japanese e-commerce mall with a wide range of categories ・Rakuten Ichiba (楽天市場) – One of Japan’s largest online retail malls ・BackMarket – A global marketplace focusing on professionally refurbished electronics Buyback and Trade-in Businesses This category includes major Japanese vendors that specialize in purchasing secondhand goods from consumers and reselling them online. These businesses contribute large volumes of consistent, structured transaction data.Includes top-tier reuse and recycling companies in Japan Coming Soon ・eBay and other global C2C platforms are planned for integration, enabling broader cross-border resale analysis in the future. Note: The sample dataset currently available contains transactions from the smartphone category only. > If you require data for additional categories or different time periods, please contact us at the address provided in the listing.