The 1950s were a flourishing period for Management Science that saw many practical successfully attacked through the application of inelegant but effective heuristics. In the 1960s, attention turned to optimization, leading to the development of algorithms that employed more sophisticated...

Recently there has been considerable interest in the average-case performance of heuristics. This paper pursues that interest, where it concerns sequencing and packing problems. In particular, we survey the methods that have been used to obtain formal probabilistic analyses of heuristics for...

Portfolios that are risk-return efficient in the sense of Markowitz sometimes contain too many securities to be attractive to the small investor. An optimal portfolio subject to a size constraint can be found by an implicit enumeration algorithm, that is much faster than a previous approach and...