US all-cargo carriers’ cost structure and efficiency: A stochastic frontier analysis
| Autor: | Balliauw, Matteo, Meersman, Hilde, Onghena, Evy, Van de Voorde, Eddy |
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| Zdroj: | In Transportation Research Part A June 2018 112:29-45 |
| Databáze: | ScienceDirect |
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Full Text from ScienceDirect