【作者(必填)】Zhifeng Gao, Allen M. Featherstone
【文题(必填)】Estimating economies of scope using the profit function: A dual approach for the normalized quadratic profit function
【年份(必填)】2008
【全文链接或数据库名称(选填)】
http://www.econbiz.de/Record/est ... zhifeng/10003768850
http://www.sciencedirect.com/sci ... i/S016517650800092X