The Luenberger productivity indicator in the water industry: An empirical analysis for England and Wales
Keyword(s):
Keyword(s):
1995 ◽
Vol 73
(4)
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pp. 535-559
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2015 ◽
Vol 19
(2)
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pp. 235-263
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2011 ◽
Vol 62
(12)
◽
pp. 2173-2188
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