| Article ID: | iaor20041491 |
| Country: | China |
| Volume: | 30 |
| Issue: | 4 |
| Start Page Number: | 98 |
| End Page Number: | 100 |
| Publication Date: | Jan 2002 |
| Journal: | Journal of Henan Normal University |
| Authors: | Jia Jishen |
| Keywords: | warranty |
This article examines the long run average costs of products under two warranty policies. Assuming that the system after repair is not as good as new, by using the geometric process, we examine the long run average costs under free warranty policy for manufacturers. The explicit expression of the costs can be found.