| Article ID: | iaor20061535 |
| Country: | Netherlands |
| Volume: | 164 |
| Issue: | 2 |
| Start Page Number: | 354 |
| End Page Number: | 357 |
| Publication Date: | Jul 2005 |
| Journal: | European Journal of Operational Research |
| Authors: | Jodlbauer Herbert |
| Keywords: | Little's law |
In this paper a mathematical definition of the input-weighted average lead-time for a general continuous inventory function is introduced. It is theoretically shown that the input-weighted average lead-time is equal to the ratio of average inventory to average input, or equivalently, average inventory to average output.