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Decomposing Berge graphs and detecting balanced skew partitions

Trotignon, Nicolas - HAL - 2006

We prove that the problem of deciding whether a graph has a balanced skew partition is NP-hard. We give an O(n9)-time algorithm for the same problem restricted to Berge graphs. Our algorithm is not constructive : it certifies that a graph has a balanced skew partition if it has one. It relies on...

Persistent link: https://www.econbiz.de/10010750514

A structure theorem for graphs with no cycle with a unique chord and its consequences

Trotignon, Nicolas; Vuskovic, Kristina - HAL - 2008

We give a structural description of the class C of graphs that do not contain a cycle with a unique chord as an induced subgraph. Our main theorem states that any connected graph in C is a either in some simple basic class or has a decomposition. Basic classes are cliques, bipartite graphs with...

Persistent link: https://www.econbiz.de/10010750604

"How About Giving My Things Away Over The Internet? " When Internet Makes It Easier To Give Things Away

Guillard, Valérie; Bucchia, Céline Del - HAL - 2012

The present article looks at the meaning of gift-giving when it is performed via free online recycling websites. Underpinned by research on the difficulties inherent to giving, our paper illustrates how these websites remove the difficulties inherent in giving to kith, kin or to charities.

Persistent link: https://www.econbiz.de/10010898884

Economic Properties of Recognized Intangibles under Domestic Accounting Standards: Evidence from European Capital Markets

Casta, Jean-François; Ramond, Olivier; Escaffre, Lionel - HAL - 2008

This study investigates whether European firms reporting under domestic GAAPs exhibit major differences while examining the relationship between their economic (financial, operating and competitive) performance and their recognized intangible investment (RII). Using a five-European-country...

Persistent link: https://www.econbiz.de/10011025567

The impact of asymmetric regulation on surplus and welfare : the case of gas release programmes

Clastres, Cédric; David, Laurent - HAL - 2009

second directive and apply asymmetric regulation. Gas release programs and market shares constraints are the two asymmetric …

Persistent link: https://www.econbiz.de/10008792707

Short-Term cost impact of compliance with clinical practice guidelines for initial sarcoma treatment

Perrier, Lionel; Cautela, Nicola; Morelle, Magali; … - HAL - 2008

Background: The impact of compliance to clinical practice guidelines (CPG) on outcomes and/or costs of care has not been completely clarified.Objective: To estimate relationships between medical expenditures and compliance to CPG for initial sarcoma treatment.Research design: Selected cohorts of...

Persistent link: https://www.econbiz.de/10008792742

La réglementation de l'audit est-elle dans l'intérêt public : quelques enseignements du modèle français

Piot, C.; Schatt, A. - HAL - 2010

Cet article s'appuie sur les travaux académiques des dix dernières années pour évaluer les effets de la réglementation française visant à accroître l'indépendance des auditeurs. Pour les sociétés cotées en bourse, l'obligation de recourir à deux auditeurs se solde notamment par une...

Persistent link: https://www.econbiz.de/10008793051

On the interest of introducing performance indicators in the local urban transport in France: a proposal for a European benchmarking analysis

Moudjed, Mounia - HAL - 2007

In Europe, interesting European experiences in the field of production of indicators in order tomeasure the performance (as efficiency) of the public transport exists. This paper analyses five European cases: England, France, Norway, Sweden, and Italy. Those countries have more or less recent...

Persistent link: https://www.econbiz.de/10008793257

Economic Theory and Electrical public Utilities Organization in the first part of the twentieth century: French and US Experiences

Marty, Frédéric - HAL - 2008

regulation were largely the fruits of the economists' works not only at a theoretical point of view, but also trough their … individual commitment in the public regulation building. Economists participate to the electricity sector re-organization by …

Persistent link: https://www.econbiz.de/10008793497

Tópicos de Economía de la Regulación de los Servicios Públicos

Ferro, Gustavo; Chisari, Omar - HAL - 2010

Competitive markets could yield socially optimum results, but although market fail in many cases. If the regulation is … to preserve competition gain importance. Regulation could be conceived as an evolutionary process starting in natural … monopoly regulation and ending in competition policy. In many cases, competition is infeasible with the current state of the …

Persistent link: https://www.econbiz.de/10008793615