Japan believes in the resale flywheel faster than the market is turning.

Resale is becoming part of the way Japanese consumers think about buying new, but the market estimate usually used to prove the opportunity needs a label. METI estimated Japan's consumer-to-consumer e-commerce market at 2.5269 trillion yen in 2024, up 1.82 percent from the previous year. This is not a survey of people: it is an estimate built from public information and interviews with operators and trade bodies. The figure combines flea-app and auction services, and it also includes business-to-business and business-to-consumer transactions on those platforms. It is not a measure of individual-to-individual trade alone.

That limitation does not make the number useless. It changes what it can do. The attitude data says resale value is moving into the first-purchase decision faster than the measured market is growing. For an overseas entrant, the channel may be worth building for the confidence it gives the original purchase, not for a second revenue line that the available evidence has not yet measured.

The familiar pitch: resale is thrift

The familiar explanation treats resale as a rational response to price. People buy second-hand because it costs less, sell what they no longer need, and return to the market when the next item appears. In that story, resale sits after the real purchase. It recovers some value from an object that has already done its job.

That account remains possible. It is simply too narrow for the newer attitude data. Hakuhodo repeated its consumption survey in 2025 after a six-year gap and named the pattern it found “convection consumption”: letting go of an object can generate the appetite to acquire another. The useful English reading is not a translation exercise. It is a shift in sequence. The second transaction may change the first decision.

The distinction matters for product strategy. If resale is only a disposal service, it belongs after purchase. If resale value is part of the reason to buy, it belongs in the product promise, the price conversation, and the proof a customer sees before paying.

What the consumption survey found

The comparison comes from two online nationwide waves among men and women aged 15 to 69, quota-assigned to the census population structure. The 2025 wave drew 5,000 respondents between 21 and 25 March 2025. The 2019 wave drew 10,000 between 28 May and 1 June 2019. The sample size therefore changed from 10,000 to 5,000, and the quotas used different census baselines: the 2025 wave used the 2020 census structure, while the 2019 wave used the 2015 structure.

Those differences do not cancel the comparison, but they belong beside it. A six-year movement in a quota survey is not the same thing as a controlled experiment, and a percentage should not be made to look more precise than the design allows. The result is still clear enough to examine because several related resale answers moved in the same direction.

The share agreeing that letting go of something makes them want something new rose from 42.2 percent in 2019 to 51.8 percent in 2025, a gain of 9.6 points. The share agreeing that being able to resell something second-hand makes them want to shop rose from 40.1 percent to 49.3 percent, a gain of 9.2 points.

The most direct purchase signal moved by 9.0 points. The share buying items that hold a high resale price rose from 14.0 percent to 23.0 percent. Resale value is no longer only a way to explain what happens after a purchase. Within this survey, it is increasingly something respondents say they consider before the purchase.

The survey also complicates the flywheel. Wanting something after seeing another person's post rose from 26.0 percent to 37.2 percent. Feeling the want already satisfied by seeing the post rose from 19.4 percent to 30.2 percent. Seeing can trigger a purchase, but it can also substitute for one. Attention enters the loop in both directions.

Resale value is being priced into the new purchase

The cleanest commercial reading is a change in the mental price of an object. A buyer may not calculate a formal future sale price, but the possibility of resale can make the original cost feel less final. That is an interpretation of the survey pattern, not a measured account of household budgets.

The 23.0 percent figure is especially useful because it is narrower than the broader belief measures. Nearly half of respondents agreed that resale availability makes them want to shop, yet less than one quarter said they buy items that hold a high resale price. Interest has moved further than behavior.

That gap is not a failure of the idea. It is a clue about where the friction remains. A customer can believe that resale should matter and still lack a trusted place to sell, a clear estimate of future value, or enough confidence that the original item will retain demand. The published survey does not measure which barrier dominates. It does show that the mental model has arrived before the full behavior has.

For an overseas brand, this is the point at which resale can become part of product design. A repair path, a buy-back policy, a transferable product record, or clear condition information might reduce the uncertainty around the first purchase. Those are tests, not claims about what Japanese consumers already demand. The survey gives permission to test the first-purchase effect; it does not select the winning mechanism.

The market the belief describes

The 2.5269 trillion yen estimate needs a second reading after its methodology is clear. METI's 2024 market study covers the 2024 calendar year and estimates market size from public information plus interviews with operators and trade bodies. It is not an individual consumer survey. METI's published consumer-to-consumer figure combines flea-app and auction transactions, and the total also contains business-to-business and business-to-consumer transactions conducted on those platforms.

The market was therefore up 1.82 percent on the previous year, not because a survey found that consumers bought 1.82 percent more used goods. It is a modeled total across a defined set of platform transactions. The number is large enough to matter, but it cannot isolate the individual-to-individual mechanism implied by the word “resale.”

The comparison with business-to-consumer e-commerce supplies scale, not a causal answer. B2C e-commerce roughly doubled from 12.7 trillion yen in 2014 to 26.1 trillion yen in 2024. The broader online market has grown strongly, while the combined flea-app and auction estimate grew slowly in its latest reported year. That contrast is consistent with a market whose belief is spreading faster than its measured transactions, but it does not explain why.

What seeing a post does instead of buying

The household evidence adds another control. The Survey of Household Economy covers 30,000 households through two-stage stratified sampling across 3,000 survey points, with each household reporting for a year. The share of households shopping online rose from 5.3 percent in 2002 to 56.9 percent in 2025. Among households that shopped online, average monthly spending rose from 32,056 yen in 2018 to 47,300 yen in 2025.

Those are household behavior figures, not attitude responses. They show that online shopping is a much wider routine than it was in 2002, but they do not identify which purchases were new, used, or influenced by resale value. The difference is important because a wider digital habit can make resale easier to encounter without proving that resale created demand.

The two social-media results point in the same direction. More people said another person's post made them want something, and more people said the post itself satisfied the want. A brand that treats every visible reaction as a sales signal will overcount the effect. A post can be a bridge to purchase, a substitute for purchase, or simply a way to settle curiosity.

When a slow-growing market is still a large one

The strongest objection is that the growth rate is being asked to do too much work. A mature market growing slowly is not a weak market. A 1.82 percent gain on a 2.5269 trillion yen estimate may matter more to a company than a nine-point shift in what people say. The base is already large, and a brand does not need the whole market to justify a commercial service.

That objection is correct about scale. A large, slowly growing market can support logistics, authentication, payments, and customer support. It can also be strategically useful even if the attitude trend later cools. The title's tension is not an argument to ignore the market.

It changes the question. The available evidence supports building resale for what it does to the first purchase, while treating the market estimate as evidence of an existing transaction environment rather than proof of a consumer-to-consumer flywheel. The claim that resale creates net new demand remains untested.

What remains unknown

Whether resale creates net new demand or substitutes for it is not established by any published source here. The attitude data records what respondents say they feel. The market data records a total estimated across platform transactions. Neither separates a purchase that would not otherwise have happened from a purchase moved from one channel to another.

That unknown should remain visible in a business case. A team can measure whether a resale feature changes conversion, first-order value, repeat purchase, or return behavior for its own product. It cannot borrow the national market total and call the causal question answered.

What an overseas team should test

Start with the first purchase, not the second listing. Ask whether showing a credible future-value path changes the customer's willingness to buy, the price they accept, or the time they take to decide. Keep those measures separate from the volume of later resales.

Then define the role of the channel. If it exists to reduce the felt cost of the first purchase, measure that effect against a comparable offer without the resale promise. If it exists as a marketplace, measure supply, demand, trust, and repeat transactions separately. The published sources do not tell you which role will be strongest for a foreign product.

Finally, label every number by evidence type. The consumption figures are national quota-survey attitudes from two waves with different sample sizes and census baselines. The household figures are reported behavior from a 30,000-household survey. The 2.5269 trillion yen figure is a METI estimate that includes more than individual-to-individual trade. The categories are not interchangeable.

Japan may believe in the resale flywheel before the market is turning at the same speed. That is not a contradiction to solve with a larger second-hand forecast. It is a reason to ask whether resale is already doing its most valuable work in the buyer's head, before the first purchase has happened.