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...

Die Umsetzung eines integrierten Ertrags- und Risikomanagements im Rahmen einer wertorientierten Unternehmenssteuerung erfordert den Einsatz zweckspezifischer Kennzahlen. Im vorliegenden Beitrag wird ein Ansatz zur axiomatischen Fundierung von risikoadjustierten Wertbeiträgen für den Zweck der...

We will examine price dependencies between primary products and co-products from metal markets. First, we develop an optimization model to determine the profit-maximizing extraction behavior of mining companies. With this model, we analyze how the companies optimally react to exogenous demand...

While literature provides several hedging theories, evidence on the corporate incentives to hedge remains ambiguous. We synthesize data of empirical studies via statistical meta-analysis to test different hedging hypotheses. To our knowledge, this constitutes the first application of such a...

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...

Competitive tendering of local bus services has received increased attention in Germany, but little is known about the factors affecting tendering prices. Based on a comprehensive dataset of 157 tender procedures, we show that contract prices have regionally varying determinants and...

This paper evaluates cost efficiency and some of its managerial determinants in Germany's local public transport. A heteroscedastic stochastic frontier approach reveals that a high degree of tramcar utilisation and a high outsourcing degree influence the efficiency predictions positively. Mean...

Recognizing the growing importance of scientific benchmarking in water distribution, we provide a comprehensive survey of the available literature. We begin with a discussion about the (limited) use of benchmarking in the regulation of UK water utilities, and then extend the analysis to...

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...

We analyze potential gains from hypothetical mergers in local public transport using the non-parametric Data Envelopment Analysis with bias corrections by means of bootstrapping. Our sample consists of 41 public transport companies from Germany's most densely populated region, North...