| Article ID: | iaor20073064 |
| Country: | Netherlands |
| Volume: | 34 |
| Issue: | 6 |
| Start Page Number: | 713 |
| End Page Number: | 718 |
| Publication Date: | Nov 2006 |
| Journal: | Operations Research Letters |
| Authors: | Jakiewicz Anna, Nowak Andrzej S. |
Semi-Markov control processes with Borel state space and Feller transition probabilities are considered. The objective of the paper is to prove coincidence of two expected average costs: the time-average and the ratio-average for stationary policies. Moreover, the optimal stationary policy is the same for both criteria.