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Enregistrement W2808041758 · doi:10.1115/jrc2018-6138

Competition Into Brazilian and North American Freight Rail Systems: A Comparative Regulatory Assessment

2018· article· en· W2808041758 sur OpenAlexaboutno aff
Fábio Coelho Barbosa

Notice bibliographique

Revuenon disponible
Typearticle
Langueen
DomaineBusiness, Management and Accounting
ThématiqueTransport and Economic Policies
Établissements canadiensnon disponible
Organismes subventionnairesnon disponible
Mots-clésCompetition (biology)BusinessService (business)Industrial organizationMarketing

Résumé

récupéré en direct d'OpenAlex

Competition is the driving force of any economic system, as it creates a challenging environment for service suppliers to provide affordable and reliable services to customers. Rail systems are an important element of the logistic chain, as they provide a unique service category (generally transporting large volumes at low unit costs) to shippers that otherwise would not be serviced by other modes — the so called captive shippers. In this scenario, competition is essential to guarantee the required service levels (availability and reliability), followed by competitive rates, which ultimately may influence shippers’ business competitiveness, both regionally and globally. Brazil and some North American countries (Canada, Mexico and United States), have a common feature, i.e. continental territories allied with the economic exploitation of bulky activities (industrial, mineral and agricultural), and, hence, depend strongly on heavy haul rail systems. These countries have been performing a continuous effort on improving competition practices into their rail systems, which are translated into important, and sometimes controversial, regulatory measures. These initiatives require a tenuous equilibrium, as they are supposed to provide the required competitive service at affordable rates for shippers, as well as a sustainable (financial and operational) environment to rail carriers, to guarantee the required return on long term investments and avoid compromising medium and long term rail network efficiency. This challenging task for rail market stakeholders (rail carriers, shippers and regulators) is far from a consensus. Rail companies claim that, as a capital intensive sector, governmental regulatory intervention into the rail system may inhibit their ability to invest the required funds to provide and expand rail capacity, as well as the maintenance of the required safety levels. Shippers, on the other hand, state that rail systems operate within a strong market concentration (originally formatted or due to subsequent merges and acquisitions) that give some rail carriers a disproportionate market power, that resembles a monopoly, which ultimately leaves a significant contingent of the so called captive shippers with just one freight rail carrier option, sometimes subjected to excessive rates, and, in some special instances (into offer restricted rail markets, for example), are responsible for the unavailability of rail services into the required volumes. In this context, there is currently a controversial debate regarding the effectiveness of competitive regulatory remedies into freight rail systems. This debate includes both market oriented rail systems (Canadian and U.S.), as well as rail contractual granted ones (Brazilian and Mexican). In the formers, the systems are mostly owned and operated by the private sector, and inter and intra modal options may theoretically provide the required competition level, while in the latter, rail systems have been broken into separate pieces and granted to the private sector under a concession arrangement, followed by an exclusive right to serve their territories, with trackage rights provisions, to be exerted by third parties, under previously defined circumstances and subjected to contractual agreements among rail operators. In both systems, competitive regulatory actions may be desirable and effective, as far as they may address the technical-operational-economic boundary conditions of each particular rail system. This work is supposed to present, into a review format, sourced from an extensive research into available international technical literature, and gathered as a unique document, an overview of the Brazilian and North American freight rail competition scenario, followed by a technical and unbiased effectiveness’ assessment of current (existing) and proposed competitive regulatory freight rail initiatives into Brazil, Canada, Mexico and United States, highlighting their strengths and eventually their weaknesses.

Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.

Comment cette classification a été obtenuedéplier

Prédiction machine sur la base complète

Imitation des enseignants

Ni prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.

score de la tête « metaresearch » (Codex)0,005
score de la tête « metaresearch » (Gemma)0,009
Version: metacan-v3-hybrid-931329e0061cStatut de validation: machine_predicted_unvalidated
Catégories candidatesaucune
Catégories consensuellesaucune
DomaineSignal candidat: aucune · Signal consensuel: aucune
Devis d'étudeSignal candidat: Sans objet · Signal consensuel: aucune
GenreSignal candidat: Empirique · Signal consensuel: Empirique
Score de désaccord entre enseignants0,812
Score d'incertitude au seuil0,373

Scores du classifieur distillé par catégorie (deux têtes)

CatégorieCodexGemma
Métarecherche0,0050,009
Méta-épidémiologie (sens strict)0,0000,000
Méta-épidémiologie (sens large)0,0010,001
Bibliométrie0,0050,008
Études des sciences et des technologies0,0030,004
Communication savante0,0040,002
Science ouverte0,0010,002
Intégrité de la recherche0,0010,001
Charge utile insuffisante (le modèle a refusé de juger)0,0060,000

Scores machine (provisoires)

Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.

Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.

Tête enseignante Opus0,019
Tête enseignante GPT0,240
Écart entre enseignants0,221 · la distance entre les deux têtes enseignantes sur ce seul travail
Statut de validationscore_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle

Classification

machine, non validée

Prédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.

Les modèles n’ont appliqué aucune catégorie : rien dans la taxonomie ne correspondait à ce travail.
Devis d'étudeSans objet
Domainenon disponible
GenreEmpirique

Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».

En bref

Citations0
Publié2018
Routes d'admission1
Résumé présentoui

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