| Issue | Explanation | Attempted Solution | 
|---|---|---|
| Non Delivery | Providers will not guarantee delivery by vendors | Some sites rate vendors | 
| Non Payment | Providers will not guarantee payment by purchasers | Rating of regular purchasers | 
| Security | According to "Internet Fraud Watch 2000": Auctions Accounted for 87% internet frauds in 1999 | 
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| Localisation | Shipping and logistics issues add to the cost of items | A number of "locally" based sites operate for a specific geographic region | 
| Illegal Items | There is no validation of whether sale items are stolen or illegal | Close working relationship with authorities and fraud agencies | 
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