This paper examines the influence of environmental factors on the technical and revenue efficiency of German savings banks. It employs a two-step approach, using, first, data envelopment analysis to calculate efficiency and, second, multivariate regressions to examine the influence of regional...

This paper examines the influence of environmental factors on technical, cost, scale and revenue efficiency of German savings banks in 2001-2005. Taking into account growing regional disparities in economic wealth and population size, it differentiates between declining and growing regions....

Insurance products are distributed both by independent and dependent agents, although the use of independent agents is more costly. The product quality hypothesis states that independent agents provide both insurers and customers with higher service quality and therefore, remain on the market....

Aufgrund der starken regionalen Verankerung kann bei den Sparkassen ein besonderes Interesse an den Folgen des demographischen Wandels und speziell von Alterung und Abwanderung vermutet werden. Dabei sind die Sparkassen nicht nur über das Regionalprinzip eng mit einer bestimmten Region...

The German insurance market was liberalized in 1994 by the introduction of the 'single passport' allowing European insurers to operate throughout the entire European Union. The European directive put also an end to price and insurance contract terms regulation. These measures were meant for...

Until its liberalisation in 1994 exclusive agents dominated the distribution of products in the German life insurance industry. Since then, their importance has been declining for the benefit of both distribution via direct distribution channel and independent agents. However, the market shares...

The European Commission has intensively discussed the mandatory separation of natural gas transmission from production and services. However, economic theory is ambiguous on the price effects of vertical separation. In this paper, we empirically analyse the effect of ownership unbundling of...

The German Energiewende’s potential effects on the reliability of electricity supply as well as the corresponding economic consequences have recently entered both the political and scientific debate. However, empirical evidence of power outage costs in Germany is rather scarce. Following a...

Supervised dimension reduction methods have been extensively applied in different scientific fields like biology and medicine in recent years. However, they have hardly ever been used in micro economics, and in particular cost function modeling. Nonetheless, these methods can also be useful in...

In 2007, Germany changed network access regulation in the natural gas sector and introduced a so-called entry-exit system. The re-regulation’s spot market effects remain to be examined. We use cointegration analysis and a state space model with time-varying coefficients to study the...