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Copyright of Annals of Telecommunications is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Annals of Telecommunications is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Annals of Telecommunications is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Les tarifs du téléphone sont à l'origine de transferts de revenus entre catégories d'abonnés et entre types d'usages du réseau téléphonique. Ces transferts proviennent de l'écart séparant la tarification effective de celle, choisie comme norme, qui serait proportionnelle aux coûts de production et fournirait les mêmes recettes globales. Le calcul des recettes et des coûts par catégorie d'abonné et type d'usage permet de comparer bilans annuels et taux de rentabilité des divers segments du marché du telephone, et d'estimer les transferts qui se produisent entre eux. On en déduit que la tarification actuelle sous-taxe les ménages de 13 %, les résidences secondaires de 27 % et les cabines publiques de 77 %, tandis qu'elle surtaxe les établissements secondaires de 39 % et ceux du secteur tertiaire de 27 %. Pour annuler les transferts entre types d'usages du réseau télephonique, la tarification actuelle devrait être multipliée par 2,4 pour la faxe de raccordement et pour l'abonnement, accrue de 23 % pour les communications locales, et réduite de 58 % pour les communications interurbaines. Telephone tariffs generate revenue cross-subsidisations between categories of subscribers and types of services provided by the telephone network. These cross-subsidisations arise from the discrepancies between the real tariffs and those which would be proportional to production costs, while providing the same total revenue. Evaluations of revenues and costs by category of subscriber and type of service enable the comparison between annual balance sheets and profitabilities of the various parts of the telephone market, and the estimation of cross-subsidisations between them. Present tariffs result in undertaxing households by 13 %, secondary residences by 27 %, and public telephone boxes by 77 %, while overtaxing industrial establishments by 39 % and service establishments by 27 %. To cancel cross-subsidisations between types of services provided by the telephone network, present tariffs should be multiplied by 2,4 as regards connection fee and rental charge, increased by 23 % for local calls, and reduced by 58 % for toll calls. [ABSTRACT FROM AUTHOR]