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Optimizing the date of an upgrading investment in a data network

Morlot, Frédéric; Fourestié, Benoît; Elayoubi, … - HAL - 2007

Due to the introduction of new services, the volume of data transferred in mobile networks is rapidly growing and operators periodically face the necessity to upgrade their network. Such upgrades allow them to increase the capacity and provide adequate Quality of Service (QoS). In this paper we...

Persistent link: https://www.econbiz.de/10009323275

A rating-based network selection game in heterogeneous systems

FUX, Vladimir; MAILLÉ, Patrick - HAL - 2012

During the last years the problem of network selection in wireless heterogeneous systems has attracted a lot of attention. Expecting that next generation mobile devices will allow connections to different types of networks, it is interesting to investigate the outcome of selfish behavior in that...

Persistent link: https://www.econbiz.de/10010567255

The environmental efficiency of non-certified organic farming in China: a case study of paddy rice production

GUO, Huanxiu; Marchand, Sébastien - HAL - 2013

This case study compares the environmental efficiency of non-certified organic and conventional rice production in … production, and then calculate the environmental efficiency scores based on the use of pure nitrogen, which is considered as an … environmental efficiency. We thus warn against the rapid expansion of organic farming and recommend more technical support and …

Persistent link: https://www.econbiz.de/10010899436

BANCOS FUSIONADOS ¿MÁS EFICIENTES?

Ferro, Gustavo; León, Sonia; Romero, Carlos A. - HAL - 2014

Se miden las ganancias potenciales de eficiencia de cinco fusiones de bancos, producidas entre 2005 y 2011, analizándolas con la metodología de análisis envolvente de datos. Dadas las divergencias entre modelos de rendimientos constantes y variables, se testean rendimientos para discernir...

Persistent link: https://www.econbiz.de/10010930238

Hidden Information, Bargaining Power, And Efficiency: An Experiment

Cabrales, Antonio; Charness, Gary; Villeval, Marie-Claire - HAL - 2011

agents affect outcomes and efficiency. Informational asymmetries generate inefficiency. In an environment where principals … principals. In contrast, when agents compete to be hired, efficiency improves dramatically, and it increases in the relative …

Persistent link: https://www.econbiz.de/10009220690

Ownership, Contractual Practices and Technical Efficiency: The Case of Urban Public Transport in France

Roy, William; Yvrande-Billon, Anne - HAL - 2007

This paper investigates the impact of ownership structure and contractual choices on technical efficiency in the French … frontier methodology.The econometric results corroborate our proposition: the technical efficiency of urban public transport …

Persistent link: https://www.econbiz.de/10010750357

Do banking crises enhance efficiency ? A case study of 1994 Turkish and 1997 Indonesian crises

Reynaud, Julien; Rokhim, Rofikoh - HAL - 2005

banking crisis, the post-crisis period should be the time for recovering efficiency. Moreover, traditional banking theory …

Persistent link: https://www.econbiz.de/10010750383

On efficiency and local uniqueness in two-sector OLG economies

Drugeon, Jean-Pierre; Nourry, Carine; Venditti, Alain - HAL - 2009

efficiency and local uniqueness of the competitive equilibrium hold. On the contrary, for lower values of the share of first …

Persistent link: https://www.econbiz.de/10010750993

Sustainability matters

Dimaria, Charles-Henri - HAL - 2013

This documents aims at bridging productivity measurement and weak sustainability in a specific data envelopment analysis framework that allows for negative output. In this framework countries use two inputs: capital and labour and seeks to maximize output and adjusted net saving. The indicator...

Persistent link: https://www.econbiz.de/10010898515

Efficiency in auctions with crossholdings

Ettinger, David - HAL - 2003

We study the impact of crossholdings on the efficiency of the standard auction formats. The ascending auction is not …

Persistent link: https://www.econbiz.de/10010898518