ATTac-2000 finished first in the Trading Agent Competition using a principled bidding strategy, which included several elements of adaptivity. This adaptivity gave ATTac-2000 the flexibility to cope with a wide variety of possible scenarios at the competition. In this section, we describe ATTac-2000's bidding strategy, its method for determining the best allocation of goods to clients, and its three forms of adaptivity. ATTac-2000's high-level strategy is summarized in Table 3.
