Decision makers often make snap judgments using fast-and-frugal decision rules called cognitive heuristics. Research into cognitive heuristics has been divided into two camps. One camp has emphasized the limitations and biases produced by the heuristics; another has focused on the accuracy of...

It is intuitive and theoretically sound to combine experts' forecasts based on their proven skills, while accounting for correlation among their submissions. Simpler combination methods, however, that assume independence of forecasts or equal skill, have been found to be empirically robust. One...

Proofs from complexity theory as well as computational experiments indicate that most lot sizing problems are hard to solve. Because these problems are so difficult, various solution techniques have been proposed to solve them. In the past decade, meta-heuristics such as tabu search, genetic...