Redefining smartphone CtoC with a fixed price: founding Mercari (2013)
A founding designed for speed and the number-one spot, not size
The heart of this founding decision was not a response to constraints of capital or technology, but the recasting of the very form of consumer-to-consumer trade on a smartphone-first basis. Japanese CtoC since Yahoo Auctions had assumed the auction; President Yamada discarded the bid-up format and chose a flea market where the seller sets a fixed “buy-it-now” price. A settled price speeds the buyer’s decision, raises the turnover of listing and buying, and moves person-to-person trade from a special act toward an everyday one. Prioritizing a “snappy,” practical smartphone experience over polish — even rebuilding from HTML5 to insist on native — shows a founder placing market fit above all. Rather than fighting existing players for share, Mercari set out to launch a whole new category; there the character of this decision shows.
That said, this founding design was also the prototype of the later growth model. The stance of prioritizing the number-one position led on to aggressive fundraising that accepted dilution and to large-scale advertising including television. In network-effect CtoC, the side that takes scale first gains the edge; but a high fixed-cost structure that pours most of revenue into advertising narrows the room for adjustment once growth slows. That the US business — which carried the smartphone-CtoC model established in Japan — booked cumulative write-downs exceeding $91.1M (¥10bn) also points to the problem lurking behind the “take scale first” idea chosen at founding. The 2013 choice to bet on speed and scale and open a new market was a starting point that prepared, at once, both Mercari’s later strength and its later difficulty.
Revenue and net margin, FY2008–FY2018
Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY2013 onwards — after it was taken.
Source: securities reports
Read the full dossier in Japanese →
The Japanese edition carries the complete record of this decision — the situation that forced it, the options weighed, what actually followed, and the sources behind every claim.
Other key decisions at Mercari
Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; the revenue chart is shown in yen. Exchange rates & sources — the full ¥/US$ table →
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Data API
Mercari’s history, financials, executives and
shareholders are published as static JSON — no key, plain GET.
Full specification →
| Method | Endpoint | Returns |
|---|---|---|
| GET | /api/companies.json | All companies |
| GET | /api/4385/manifest.json | Resource index |
| GET | /api/4385/history.json | History overview |
| GET | /api/4385/timeline.json | Chronology |
| GET | /api/decisions.json | All management decisions (index) |
| GET | /api/4385/decisions.json | Management decisions (index) |
| GET | /api/4385/decisions/{slug}.json | One decision (full dossier) |
| GET | /api/4385/executives.json | Executives |
| GET | /api/4385/shareholders.json | Major shareholders |
| GET | /api/4385/financials.json | Financial statements |
| GET | /api/4385/financials-longterm.json | Long-term results |
| GET | /api/4385/segments.json | Business segments |
| GET | /api/4385/regions.json | Sales by region |
| GET | /api/4385/workforce.json | Workforce |