We study the design of sequential procurement strategies that integrate stochastic and strategic information. We consider a buyer who repeatedly demands a certain good and is unable to commit to long-term contracts. In each time period, the buyer makes a price offer to a seller who has private,...

In repeated games, strategies are often evaluated by their ability to guarantee the performance of the single best action that is selected in hindsight (a property referred to as Hannan consistency, or no-regret). However, the effectiveness of the single best action as a yardstick to evaluate...