Forecasting using time series (TS) models are often based on linear regression or methods using various smoothing techniques. When estimating the parameters used in smoothing techniques, it has become a common practice to optimize the smoothing constants (parameters). This new practice is a...

The travelling salesman problem (TSP) is a well-known business problem, and variants like the maximum benefit TSP or the price collecting TSP may have numerous economic applications. We are looking at several different variants of TSP; all solved in spreadsheets, not using tailored solvers for...

The traveling salesman problem (TSP) is well-known and many specially developed solution procedures have been constructed to solve particular variants of it. This paper considers several different variants of TSP. However, developing tailored solution procedures for each is impractical. These...

Quadratic assignment problems (QAP) are rarely mentioned in introductory textbooks in management science and other relevant areas. Even in advanced textbooks, only very small examples are used, because of the complexity of the cost function. This article shows that alternative formulations of...