Breustedt, Gunnar; Francksen, Tammo; Latacz-Lohmann, Uwe - Gesellschaft für Wirtschafts- und Sozialwissenschaften … - 2007
construct a metafrontier production function which consists only of parts of different (group) frontier production functions …. Thus, in contrast to the common literature our metafrontier does not need any assumptions additional to the group …