relative regret. Relative regret evaluates a portfolio by comparing its return to a family of benchmarks, where the benchmarks … objective when there is concern about parameter uncertainty or model ambiguity. The optimal relative regret portfolio is the one … the Lagrange multipliers, and the objective function involves the family of benchmarks from the relative regret problem …

for home assets based on familiarity. Using a utility formulation inspired by regret theory, we derive closed …

his own profit, we allow the utility to also depend on any regret that a bidder suffers after the fact and characterize … when and how this affects bidding. Specifically, a winner might regret "money left on the table" in Federal offshore oil … lease sales, while a loser might regret seeing an object sell for less than his own value for it. We show that for risk …

We investigate the effect of regret-related feedback information on bidding behavior in sealed-bid first-price auctions …. Two types of regret are possible in this auction format. A winner of the auction may regret paying too much relative to … the second highest bid, and a loser may regret missing an opportunity to win at a favorable price. In theory, under very …