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A comment on Inside the strange world of Amazon-to-eBay arbitrage. Parent comment

Re:Inside the strange world of Amazon-to-eBay arbitrage by pjlegato on Wednesday July 27, 2016 @07:32PM (#12177296)
The case of importing from Ali, holding inventory, then reselling in the US is still not arbitrage. Arbitrage is by definition riskless simultaneous buying and selling of the same product in different venues.

Since the Ali importer is buying and selling at different times, the importer is assuming the risk that the market clearing price in the US will change before their inventory can be sold.

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Re:Inside the strange world of Amazon-to-eBay arbitrage by nerfhammer on Wednesday July 27, 2016 @09:21PM (#12177743)
One academic definition of arbitrage includes zero risk, but usually not in contexts where it refers to something that happens in the real world, perhaps given that it's impossible in reality.
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Re:Inside the strange world of Amazon-to-eBay arbitrage by pjlegato on Friday July 29, 2016 @12:14AM (#12184988)
Actual arbitrage is very rare in the real world. If you're holding inventory at all, you're not doing arbitrage.
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