A new early-warning system for international currency crises is developed in this paper. The existing crisis indicators in the literature are essentially static. We examine the relationship between the dynamics of foreign reserves and currency crises. It is shown that rapid reserve depletion is...

Descriptive epidemiological study has shown that drowning is a problem health in low and middle income countries. To analyze records of drowning deaths from two injury registry systems, to ascertain a true estimate of drowning-mortality, it can help to follow up drowning prevention policy.

Background Descriptive epidemiological study has shown that drowning is a problem health in low and middle income countries. To analyze records of drowning deaths from two injury registry systems, to ascertain a true estimate of drowning-mortality, it can help to follow up drowning prevention...

In this paper, we develop a Lagrangean relaxation-based heuristic procedure to generate near-optimal solutions to very-large-scale capacitated lot-sizing problems (CLSP) with setup times and limited overtime. Our computational results show that large problems involving several thousand products...

In this paper we develop a new conditional penalty for the fixed charge transportation problem. This penalty is stronger than both the Driebeek penalties and the Lagrangean penalties of Cabot and Erenguc. Computational testing shows that the use of these penalties leads to significant reductions...

One approach for solving decision problems involving multiple objectives is interactive optimization. Methods based on this approach assess the decision maker's preference structure interactively, typically based on pairwise comparisons and tradeoffs, and guide the search process toward...