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| Juan manuel Sánchez-cartas |
| Universidad Politécnica de Madrid |
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| UPM Campus de Montegancedo |
| Pozuelo de Alarcón |
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| Madrid, 28223 |
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| juanmanuel.sanchez@upm.es |
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JEL Areas:
L1 : Market Structure, Firm Strategy, and Market Performance: General
D2 : Production and Organizations: General |
