This paper estimates a model of airline competition that captures the two major features of the industry: product differentiation and economies of density. The results not only provide support to some of the traditional common wisdom in the industry, but are also useful for understanding major...

Alle Regionalflughäfen in Deutschland sind defizitär und werden jährlich durch öffentliche Gelder unterstützt. Befürworter dieser Subventionen argumentieren mit Wachstumsimpulsen, durch welche die umliegende Wirtschaft von den Investitionen ebenfalls profitiere. Eine RWI-Analyse, welche...

Part 1: Developing Sustainable Mobility & Logistics -- Part 2: Promoting sustainable behavior -- Part 3: Planning and managing sustainable infrastructure -- Part 4: Developing Digital Solutions for the intelligent city.

This paper exploits the deregulation of the European aviation market as a quasi-natural experiment to examine if the expansion of regional airports in Germany caused positive spillover effects on the surrounding economy. Such spillovers might justify the heavy subsidies which are transferred to...

Small and regional airports often have insufficient revenues to cover their costs. The question is how such airports could be efficiently structured, managed and financially supported. Some airports are operated individually and receive direct subsidies from the local and federal governments....