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A scale elasticity measure for directional distance function and its dual : theory and DEA estimation
Zelenyuk, Valentin, (2012)
Scale efficiency : equivalence of primal and dual measures
Zelenyuk, Valentin, (2011)
A scale elasticity measure for directional distance function and its dual
Aggregation of economic growth rates and of its sources
Zelenyuk, Valentin, (2010)
Performance analysis : economic foundations and trends
Zelenyuk, Valentin, (2021)