When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Treating non-discretionary variables one way or the other: implications for efficiency scores and their interpretation. - Non-Radial Efficiency as Semi-Radial Efficiency. - DEA Models via Goal Programming.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.