(game theory) A non-zero-sum sequential game designed to illustrate a paradox brought about by traditional rational-choice theory in which players are compelled to make an ultimately irrational decision based entirely on a sequence of apparently rational choices made throughout the game. It involves an auction for a dollar bill where the second-highest bidder loses the amount that they bid, making them the biggest loser in the auction.

Synonym of US dollar

plural of American dollar

(historical) A silver dollar stamped to attest its purity.

(historical) A silver coin minted as a trade coin by various countries to facilitate trade with China and the Orient.

plural of trade dollar

(historical) A coin used in the early history of Prince Edward Island and New South Wales, made by punching the middle out of a Spanish dollar; the punched-out middle part was used as a smaller coin called a dump.

plural of holey dollar

The official currency of Australia.

plural of US dollar