Der deutschen Wasserwirtschaft könnte in naher Zukunft ein grundlegender Wandel ihrer Geschäftspraktiken bevorstehen. Durch die jüngeren Kartellverfahren gegen kommunale Wasserunternehmen in Hessen ist ein neues Kapitel im deutschen Wassersektor aufgeschlagen worden. In Verfahren gegen...

A strong increase in the demand for some commodities over the last decade will have a major impact on their future supply situation. Of increasing importance, therefore, is an assessment of a commodity's criticality, and especially its supply risk, by appropriate indicators. The literature has...

Subsidies are considered important means to facilitate the provision of public transit, yet the empirical evidence implies that they can have harming effects on costs and possibly also on operators' performance. This paper examines the impacts of deficit-balancing subsidies on the cost...

In this paper, we empirically investigate operator changes and the structural conditions in competitive tendering of bus services in Germany. We show that the focus has been on regional services, which has led to a loss in market share for the incumbent DB Stadtverkehr companies and gains for...

This paper examines the impact of endogenous deficit-balancing subsidies on the cost efficiency of local public bus companies by using alternative frontier cost models for panel data. Thereby, the multidimensional performance estimation incorporates the subsidy variable directly. The empirical...

Domestic express coach services in Germany have long been heavily restricted by regulation, although offerings comparable to countries like, for example, Great Britain or Sweden bear substantial opportunities for competition, the environment, and mobility. In this paper, we motivate market entry...

This paper employs meta-analysis to aggregate and systematically analyze the mixed empirical evidence on the determinants of corporate hedging reported in 132 previously published studies covering data from more than 73,000 firms. Among the fourteen proxy variables analyzed by multivariate...