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Mean and bold?
De Witte, Kristof, (2007)
Strukturschwäche oder X-Ineffizienz? : Cost-Frontier-Analyse der bayerischen Genossenschaftsbanken
Lang, Günter, (1995)
Estimation of portfolio efficiency in nonconvex settings : a free disposal hull estimator with non-increasing returns to scale
Xiao, Helu, (2022)
Measuring technical efficiencies from interdependent multiple outputs frontiers
Kalirajan, Kaliappa, (1986)
Trade among developing countries : the case of South Asian regional co-operation
Kalirajan, Kaliappa, (1985)
A simultaneous determination of market concentration and industry performance in West Malaysian manufacturing
Kalirajan, Kaliappa, (1989)