Recently I went to buy a certain product on eBay Australia and found that 90 percent of sellers all had exactly the same price (to the cent). On looking at the location of the sellers they were all from exactly the same locality. I can only assume that a seller or group of sellers have registered multiple selling accounts for the purpose of monopolizing the market. Out of more than 12 sellers checked (and there were many more) only two had a differing location. I believe...

Sellers Monopolising sales by using multiple accounts and fixing prices | Ask a Mentor

Sellers Monopolising sales by using multiple accounts and fixing prices | Ask a Mentor | eBay Community