| Article ID: | iaor2007424 |
| Country: | Netherlands |
| Volume: | 170 |
| Issue: | 2 |
| Start Page Number: | 667 |
| End Page Number: | 671 |
| Publication Date: | Apr 2006 |
| Journal: | European Journal of Operational Research |
| Authors: | Peng Jian-Wen |
| Keywords: | invexity |
In this paper, some necessary conditions of (strictly) pseudo-invex monotonicity and quasi-invex monotonicity are established with the condition that ƒ is affine in the first argument and skew instead of Condition C.