What prevents a colleague from bumping up the bid? What security prevents it.

[alfonzod]

I Bid on a product then Maximized the bid at $100. What prevents a colleague from bumping up the bid. The product isn't worth $100. A colleague could keep bumping the bid til he reaches the maximum bid it is a tie. First to place the bid wins, the sellers makes more than he/she would have otherwise. The colleague who is upping the bids does he know what the maximum bid I have put down, does the seller? I as the buyer should be the only one that should know what I have placed dollar and ebay security. I bought the product for 100.00 and the same product I was watching sold for 27.00 do I ever feel like I was taken.

[007steveb16]

Sellers & other buyers cannot see your max bid, only you can.

[alfonzod]

But there can't be a tie as it won't let bid the same amount it would bounce you

[toby_le_pue]

Go to the bid history of your item in question and click on

show automatic bids.

Also go to this link about proxy bids and read it and you

will see there can be ties.

http://pages.ebay.ca/help/buy/automatic-bidding.html

[femmefan1946]

I think what you are trying to describe is usually called "shill bidding".

A bidder pushes the bid until he passes the high bidder's maximum. He then will retract his bid and not bid again.

It is the pattern of bid and retraction that makes the shill bidder apparent.

But if the other bidder always wins, then you are just underestimating the value of the items you are bidding on.