Single-level lot-sizing with varying demand under various optimizing objectives

الملخص EN

The primary purpose of this paper is to study the single-product deterministic and time-varying demand inventory problem to incorporate two new elements into the existing solution methodology.

They are (i) the discrete time demand case, relatively unknown so far; and (ii) the use of optimizing criteria more suited for certain types of outputs for which profitability rather than cost is the objective of any resulting inventory policy.

The discrete nature of the demand leads to a simple network formulation with well-known solution algorithms.

The use of return on investment as a profitability index changes the structure of the objective function to the point where the solution requires more complicated methodology.

A new solution algorithm is presented and shown to be easy to use.

Suggestions for further research are also included.