In return for offering a guarantee, Sotheby's and Christie's will typically take a commission of 25% of any bid above the guarantee level, sometimes more against a normal commission rate of 12%.

ECONOMIST: Art.view: Wishing well | The

Such speculators bet on a stock's price falling, and a bid by the founder is almost a guarantee that it won't.

FORBES: Magazine Article

The company employs about 250 auction specialists, curators and appraisers to guarantee authenticity of items up for bid.

FORBES: Disrupting The World's Great Auction Houses

The exact mix between the cheap money policy of the Fed (which allowed the prices of real estate to be bid up) and the unsound lending and guarantee practices of Fannie Mae and Freddie Mac is surely part of the overall story.

FORBES: U.S. Government: Too Big To Succeed?

The German government also said it would guarantee personal savings deposits, in a bid calm fears among individual savers.

FORBES: Magazine Article

And the Peace Dividend Trust submitted an innovative loan guarantee model aimed at empowering local SMEs to bid for donor procurement contracts in post-conflict or post-disaster economies.

WHITEHOUSE: Office of Science and Technology Policy Blog