Commerce and retail
Where your inventory sits in every market this morning, what moved since yesterday, and which listings disappeared.
What is not in your systems
You know your inventory. Cost, listing price, days on hand — all internal.
What is not internal is where that inventory stands in the world this morning. And nobody publishes it.
What arrives every morning
| Where you sit today | Each product against each market's rate, tax normalised |
| What moved since yesterday | What rose, what fell, what appeared |
| What disappeared | A listing leaving a results page is the closest public proxy for a sale |
| The gap by country | What the same product fetches in each market |
| A competitor's range | What they took on, and what they dropped |
Nobody stores "what changed since yesterday", so it cannot be bought later. You only ever have it from the day you start.
Where the decision changes
| Problem | What you get |
|---|---|
| No defensible basis for pricing | Per-product gap between each market and your own price, every morning, in a form that survives a meeting |
| Don't know what is worth exporting | Only the wide gaps that are also high confidence |
| Buying is instinct | Rate trend, plus how fast listings disappear as a demand signal |
| Erosion noticed too late | Alerts only on day-over-day moves past a threshold |
| Different prices per marketplace | Each venue collected separately |
| Parallel imports are invisible | Your own products, and their prices, on overseas venues |
Where the sign flips
Never mix tax-inclusive and tax-exclusive. Subtracting a price that includes consumption tax from one in a market that levies none reverses which side is cheaper. On one engagement a figure that read "12.9% cheaper there" was really 4.3% — and some products were dearer in that market, the opposite conclusion.
Do not count accessories as products. On one engagement a ¥6,350 accessory was counted as the item itself and produced an 877× spread.
Do not drop reference suffixes. A single trailing character once merged a ¥12.8M premium variant with the ¥8.8M standard one.
Do not count one absence as a sale. On one engagement that reported 188 items sold in 9.3 hours. The ranked pages had simply reordered.
All four produce plausible numbers without raising an error. That is why 31 checks run before a report is generated.
What it fits
Anything with a model or part number, listed on more than one venue, priced differently by country or channel. New or pre-owned.
Appliances, cameras, jewellery, instruments, bicycles, tools, PC peripherals, automotive parts, collectables, branded apparel, cosmetics, supplements.
Change the category and the only thing that changes is the list of sources.
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