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Competition and technical change in the US telephone industry : current issues
Sung, Nakil - 1997
Persistent link: https://www.econbiz.de/10000983855
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Measuring embodied technical change in the US local telephone industry
Sung, Nakil - In: Applied economics 34 (2002) 1, pp. 77-85
Persistent link: https://www.econbiz.de/10001633755