What are the four auction companies?

The four auction companies are Poly Auction, Guardian Auction, Sotheby's and Christie's.

1, poly auction

Founded in 2005, Poly Auction is a world-renowned art auction company under Poly Culture Group. Its art auction performance is well-known at home and abroad, and it has a wide influence in the art auction fields such as ancient paintings and calligraphy in China, modern paintings and calligraphy in China, antiques and curios, modern and contemporary art, contemporary ink and wash, ancient books and documents, and contemporary handicrafts.

2. Guardian auction

China Guardian Auction was established on 1993. Is a comprehensive auction company focusing on China cultural relics and artworks. It is headquartered in Beijing and has offices in Shanghai, Guangzhou, Nanjing, Hangzhou, Hongkong, Taiwan Province, Japan, the United States and Canada. Its auction business scope includes China paintings and calligraphy, and more than 450,000 pieces of cultural relics and artworks have been auctioned.

3. Sotheby's auction house

Sotheby's in London 1744. It is an internationally renowned old auction house and a leader in the international book and manuscript auction market. It established an auction house in Hong Kong on 1973, and its business includes art auction, private art transaction, art loan, etc. Sotheby's has 80 offices in 40 countries and regions.

4. Christie's auction house

Founded in London, 1766, Christie's is a world-renowned art and luxury auction leader and an internationally renowned ancient auction house, providing customers with comprehensive global services, including art appraisal, art financing, international real estate and art education, with offices in 46 countries and regions in America, Europe, the Middle East and the Pacific.

Characteristics of auction

1. An auction must have more than two buyers: that is, when there is only one seller (usually held by an auction institution) and there are many possible buyers, the latter may compete with each other in terms of the price of the auction items they want to buy.

2. Auctions must have a constantly changing price: that is, all auctions are not fixed by the seller or bargained by the buyer and the seller, but the buyer makes another bid on the basis of the starting price announced by the seller on the spot until the highest price is finally determined.

3. Auction must have the behavior of open competition: that is, all auctions are competed by different buyers for the same auction item in public. If all buyers are not interested in any auction item and there is no competition, then the auction will lose any meaning.

Baidu encyclopedia-Beijing poly international auction co., ltd