[eng] Productive Structures in Urban Transport and Effects of Regulatory Arrangements . by Philippe Gagnepain . French urban transport is a highly regulated industry. Different contractual systems create contrasting cost-cutting incentives. The purpose of this paper is to study the industry's...

[ger] System kombinierter Regressionen und unvollständiges Panel: ein Uberblick, . von Marc Ivaldi, Michel Simioni.. . In diesem Artikel werden die üblichen Methoden zur Schätzung eines Systems kombinierter Regressionen dargestellt, wobei zunächst der Fall unvollständiger Panels unter...

[eng] This study presents a methodology to evaluate the impact of a new transportation infrastructure on social welfare, taking into account both inter-and intramodal competition. The new infrastructure alters the characteristics of the transportation mode involved, entailing changes in the...

[spa] La demanda de energia de las industrias lecheras : un análisis microeconómico, . por Alain Bousquet, Marc Ivaldi, Norbert Ladoux.. . En este artículo se procede a un análisis empírico de las posibilidades de substitución entre formas de energía para las empresas del sector de las...