WorldCat Identities

Wetzel, Heike

Overview
Works: 11 works in 12 publications in 2 languages and 19 library holdings
Publication Timeline
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Publications about  Heike Wetzel Publications about Heike Wetzel
Publications by  Heike Wetzel Publications by Heike Wetzel
Most widely held works by Heike Wetzel
Economies of scope in European railways : an efficiency analysis by Heike Wetzel ( Book )
2 editions published in 2006 in English and held by 3 WorldCat member libraries worldwide
In the course of railway reforms in the end of the last century, national European governments, as well the EU Commission, decided to open markets and to separate railway networks from train operations. Vertically integrated railway companies companies owning a network and providing transport services argue that such a separation of infrastructure and operations would diminish the advantages of vertical integration and would therefore not be suitable to raise economic welfare. In this paper, we conduct a pan-European analysis to investigate the performance of European railways with a particular focus on economies of vertical integration. We test the hypothesis that integrated railways realise economies of joint production and, thus, produce railway services on a higher level of efficiency. To determine whether joint or separate production is more efficient we apply a Data Envelopment Analysis super-efficiency bootstrapping model which relates the efficiency for integrated production to a virtual reference set consisting of the separated production technology. Our findings are that in a majority of European Railway companies exist economies of scope
"Fremdenverkehr als Wirtschaftsfaktor" Konzeption für die Gemeinde Großbothen by Fritz Mauer ( Book )
1 edition published in 2000 in German and held by 2 WorldCat member libraries worldwide
European railway deregulation essays on efficiency and productivity of European railways by Heike Wetzel ( Book )
1 edition published in 2009 in English and held by 2 WorldCat member libraries worldwide
Schlagworte deutsch: Europäische Eisenbahnindustrie, Effizienzanalyse, Verbundvorteile, technische Effizienz, Produktivität. Englische Schlagworte: European railway industry, efficiency analysis, economies of scope, technical efficiency, productivity
Effizienzmessverfahren : eine Einführung by Anne-Kathrin Last ( Book )
1 edition published in 2009 in German and held by 2 WorldCat member libraries worldwide
Baumol's cost-disease, efficiency, and productivity in the performing arts : an analysis of German public theaters by Anne-Kathrin Last ( Book )
1 edition published in 2010 in English and held by 2 WorldCat member libraries worldwide
This paper analyzes the productivity development in the German public theater sector for the seasons 1991/1992-2005/2006. Using a stochastic distance frontier approach that allows to decompose total factor productivity change into different sources we examine (a) whether Baumol's cost-disease hypothesis is valid in this sector and (b) if so, whether its negative influence on productivity can be compensated by efficiency gains. The findings indicate an increase in real unit labor cost as a result of rising wage rates and, thus, support the cost- disease hypothesis. Furthermore, increasing returns to scale are observed for the majority of the theaters which implies that significant efficiency gains can be realized by the exploitation of scale economies. However, because of the increasing unit labor cost and an increasing scale inefficiency we find an overall decrease in average productivity of about 8 percent within the sample period. -- Public theaters ; cost-disease ; efficiency ; stochastic frontier analysis
European railway deregulation : the influence of regulatory and environmental conditions on efficiency by Heike Wetzel ( Book )
1 edition published in 2008 in English and held by 2 WorldCat member libraries worldwide
The objective of this paper is to analyze the impact of regulatory and environmental conditions on technical efficiency of European railways. Using a panel data set of 31 railway firms from 22 European countries from 1994 to 2005, a multioutput distance function model, including regulatory and environmental factors, is estimated using stochastic frontier analysis. The results obtained indicate positive and negative efficiency effects of different regulatory reforms. Furthermore, estimating models with and without regulatory and environmental factors clearly indicates that the omission of environmental factors, such as network density, substantially changes parameter estimates and, hence, leads to biased estimation results. -- European railways ; technical efficiency ; stochastic frontier analysis
The difficulty to behave as a (regulated) natural monopolist : the dynamics of electricity network access charges in Germany 2002 to 2005 by Thomas Wein ( Book )
1 edition published in 2007 in English and held by 2 WorldCat member libraries worldwide
Reviewing the development of network access charges in the German electricity market since 2002 reveals significant variation. While some firms continually increased or decreased their access charges, a variety of firms exhibited discontinuous behavior with price changes in both directions. From an economic viewpoint this price setting turbulence is astonishing because grid operators are non-contestable natural monopolists, which in this time period were regulated by Negotiated Third Party Access (NTPA). Depending on the effectiveness or ineffectiveness of NTPA, expected behavior would be either regulated average cost prices or monopoly prices, but not the observed turbulence. Although in 2005 NTPA scheme was replaced by a Regulated Third Party Access (RTPA) scheme with a regulator, an analysis of the factors influencing the price setting behavior within this period offers valuable information for the new regulator and the still discussed new incentive regulation, which is expected to start in 2009. Using multivariate estimations based on firm data covering the years 2000-2005, we test the hypotheses that asymmetric influence of regulatory threat, different cost and price calculation knowledge, strategic use of structural features and the obligation to publish specific access charges have influenced the electricity network access charges in Germany
Einfluß der Wiedereröffnung von koronaren Gefäßen auf die kardiopulmonale Funktion by Heike Wetzel ( Book )
1 edition published in 1995 in German and held by 1 WorldCat member library worldwide
Competing in the higher education market : empirical evidence for economies of scale and scope in German higher education institutions by Maria Olivares ( Book )
1 edition published in 2011 in English and held by 1 WorldCat member library worldwide
Since the late 1990s, the European higher education system has had to face deep structural changes. With the public authorities seeking to create an environment of quasi-markets in the higher education sector, the increased competition induced by recent reforms has pushed all publicly financed higher education institutions to use their resources more efficiently. Higher education institutions increasingly now aim at differentiating themselves from their competitors in terms of the range of outputs they produce. Assuming that different market positioning strategies will have different effects on the performance of higher education institutions, this paper explores the existence of economies of scale and scope in the German higher education sector. Using an input-oriented distance function approach, we estimate the economies of scale and scope and the technical efficiency for 154 German higher education institutions from 2001 through 2007. Our results suggest that comprehensive universities should indeed orientate their activities to the concept of a full-university that combines teaching and research activities across a broad range of subjects. In contrast, praxis-oriented small and medium-sized universities of applied sciences should specialise in the teaching and research activities they conduct. -- Higher Education Production ; Economies of Scale and Scope ; Technical Efficiency ; Stochastic Frontier Analysis ; Input Distance Function
Testing for economies of scope in European railways an efficiency analysis by Christian Growitsch ( Book )
1 edition published in 2007 in English and held by 1 WorldCat member library worldwide
"[This paper conducts] a pan-European efficiency analysis to investigate the performance of European railways with a particular focus on economies of vertical integration. [It tests] the hypothesis that integrated railways realise economies of scope and, thus, produce railway services with a higher level of efficiency. To determine whether joint or separate production is more efficient, [it applies] a data envelopment analysis super-efficiency bootstrapping model which relates the efficiency for integrated production to a reference set consisting of separated firms which use a different production technology. [It is found] that for a majority of European railways, economies of scope exist."--Editor
European Railway Deregulation: Essays on Efficiency and Productivity of European Railways by Heike Wetzel ( )
1 edition published in 2008 in English and held by 1 WorldCat member library worldwide
 
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Languages
English (9)
German (3)