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Social segregation in cities takes place where different household groups exist and when, according to Schelling, their location choice either minimizes the number of differing households in their neighborhood or maximizes their own group. In this contribution an evolutionary simulation based on a monocentric city model with externalities among households is used to discuss the spatial segregation patterns of four groups. The resulting complex spatial patterns can be shown as graphic animations. They can be applied as initial situation for the analysis of the effects a rent control has on segregation.
In the past academic libraries in Germany have been successfully undertaking joint endeavors toward a social and political definition of the knowledge society by cooperatively developing ways to provide information and increasing the digital forms of metadata and media. In doing so, they have unintentionally created the basis for a competitive playing field in which the individual library must establish strategic positions for success if it is to maintain viability and ensure continuous flow of resources. This article develops a framework for discussing such alternative and potentially successful strategies from the point of view of a university library
Collaborative Engineering is a promising concept to increase the competitiveness of companies. Target of this paper is to describe the industrial application of this approach, considering shipbuilding as an example. Besides the engineering partners needs to collaborate during the product development phase, there are many other stakeholders who are interested in the product ship along its whole life cycle. Therefore the Concept of Collaborative Engineering is extended by introducing the idea of Communities. Requirements on Communities in Engineering are deduced. Based on this an architectural framework for Collaborative Engineering Communities is described. Concluding research topics which have to be discussed for practical realization are outlined.
Consumer attitudes towards genetically modified foods in Europe : structure and changeability
(2004)
Genetically modified foods have been at the center of debate in European consumer policy in the last two decades. Although the quasi-moratorium has been lifted in May 2004 and the road to the market is in principle reopened, strategies for product introduction are lacking. The aim of the research is to assess potential barriers in the area of consumer acceptance and suggest ways in which they can be overcome. After a short history of the genetically modified foods debate in Europe, the existing literature is reviewed. Although previous research converges in its central results, issues that are more fundamental have remained unresolved. Based on classical approaches in attitude research and modern theories of social cognition, a general model of the structure, function and dynamics of whole systems of attitudes is developed. The predictions of the model are empirically tested based on an attitude survey (N = 2000) and two attitude change experiments (N = 1400 and N = 750). All three studies were conducted in parallel in four EU member states. The results show that consumer attitudes towards genetically modified foods are embedded into a structured system of general socio-political attitudes. The system operates as a schema through which consumers form global evaluations of the technology. Specific risk and benefit judgments are mere epiphenomena of this process. Risk-benefit trade-offs, as often presupposed in the literature, do not appear to enter the process. The attitudes have a value-expressive function; their purpose is not just a temporary reduction of complexity. These properties render the system utterly resistant to communicative interventions. At the same time, it exerts stong anchoring effects on the processing of new information. Communication of benefit arguments can trigger boomerang effects and backfire on the credibility of the communicator when the arguments contrast with preexisting attitudes held by the consumer. Only direct sensory experience with high-quality products can partially bypass the system and lead to the formation of alternative attitude structures. Therefore, the recommended market introduction strategy for genetically modified foods is the simultaneous and coordinated launch of many high-quality products. Point of sale promotions should be the central instrument. Information campaigns, on the other hand, are not likely to have an effect on the product and technology acceptance of European consumers.
The efficient use of human capital is one of the most important factors in todays' business competition. Competition is strongly influenced by qualified staff. In order to aid the human resources department to keep up with strategic decisions various competency management systems have been created that make the development of human resources easier and more precise. Competency management systems are only as good as the information that they are based on. The mostly used basic information is the skill catalogue. But there are nearly no applicable methods yet to create such a catalogue thoroughly. This paper introduces a reasonable approach to create such a catalogue with the description language for knowledge-intensive processes KMDL.
Business processes can be modelled and analysed extensively with well known and established methods. The simple signs of static knowledge do not fulfil the requirements of a comprehensive and integrated approach of process-oriented knowledge management. The Knowledge Modelling Description Language KMDL is able to represent the creation, use and necessity of knowledge along common business processes. Therefore KMDL can be used to formalise knowledge-intensive processes with a focus on certain knowledge-specific characteristics and to identify weak points in these processes. The tool K-Modeller is introduced for a computer-aided modelling and analysing.
Table of contens 1 Introduction 2 The concept of sustainability 2.1 Ecological sustainability 2.2 Social sustainability 2.3 Economic sustainability 2.4 The sustainability strategy of the german government 3 Effects of energy use on the enviromment 4 Requirements of the SSGG for energy policy 4.1 Ecological implications of thr SSGG 4.2 Social and economic requirements of the SSGG 5 The German Renewable Energies Act 5.1 Objectives 5.2 Design and mechanisms 5.3 Fees-in tariffs 6 Does the EEG meet the sustainability requirements of the SSGG? 6.1 Management rules 6.2 Social sustainability 6.3 Economic sustainability 6.4 Development tendencis 7 Possible amendments for more sustainability 7.1 Changing the promotional system 7.2 A European regulation
Dynamic causal links between the russian stock exchange and selected international stock markets
(2004)
Table of contents 1 Introduction 2 Ecological regulation and cost effectiveness 2.1 Climate policy 2.2 Promotion of renewable energies 3 Ecological regulation and security of supply 3.1 Climate policy 3.2 Promotion of renewable energies 4 The German Renewable Energies Act (EEG) 4.1 Objectives 4.2 Design and mechanisms 5 The European emissions trading system (EETS) 5.1 Objectives 5.2 Framework 6 The EEG and the EETS: trade off between ecological objectivesand cost effectiveness, innovation and security of supply? 6.1 EEG 6.2 EETS 6.3 Comparison between the approaches of the EEG and the EETS 7 Conclusions and outlook
Economy vs. history
(2004)
The aim of this study is to examine in which cases economic forces or historical singularities prevail in the determination of the long-run distribution of firms. We develop a relatively general model of heterogenous firms' location choice in discrete space. The main force towards an agglomerated structure is the reduction of transaction costs for consumers if firms are located closely, whilst competition and transport costs work towards a more disperse structure. We then assess the importance of the initial conditions by simulating and comparing the resulting distribution of firms for identical economic parameters but varying initial settings. If the equilibrium distributions of firms are similar we conclude that economic forces have prevailed, while differences in the resulting distributions indicate that 'history' is more important. The (dis)similarity of distributions of firms is calculated by means of a measure, which exhibits a number of desirable features.
Economy vs. history : what does actually determine the distribution of firms' locations in cities?
(2004)
An exhaustive and disjoint decomposition of social choice situations is derived in a general set theoretical framework using the new tools of the Lifted Pareto relation on the power set of social states representing a pre-choice comparison of choice option sets. The main result is the classification of social choice situations which include three types of social choice problems. First, we usually observe the common incompleteness of the Pareto relation. Second, a kind of non-compactness problem of a choice set of social states can be generated. Finally, both can be combined. The first problem root can be regarded as natural everyday dilemma of social choice theory whereas the second may probably be much more due to modeling technique implications. The distinction is enabled at a very general set theoretical level. Hence, the derived classification of social choice situations is applicable on almost every relevant economic model.
Knowledge is more and more a key factor within companies. Nearly 40 percent of all employees are so called "knowledge workers". Distribution and inquest of knowledge within companies are supported by skill management systems. Although not all aspects and potentials of this instrument are yet utilized skill management systems have spread widely within business organizations. This paper summarizes the requirements, scopes and problems for skill management system within the company.
Contents: Targets, Means and Benefits of Social Protection Standard Risks and Possible Institutional Settings for Social Protection -Market Structure for Pension and Health Insurance -Systems of Social Protection and Security -Replacement Ratios and Income Taxation Social Protection in Selected European Countries: Germany, Austria, The Netherlands, United Kingdom -Pension System -Health System -Unemployment Insurance -Accident Insurance -Basic Security System -Taxation of Wages and Profits The Overall Burden of Taxes and Social Protection Expenses Necessary Reforms, Lessons for Russia and a Basic Approach for a Blueprint -Basic Features of the Reform Process -Reforms within the Branches of Social Protection -Integrated Tax and Transfer Reform -Empirical Evaluation of Tax and Transfer Reforms
Making diversity work
(2004)
Knowledge processes and business processes are linked together and should be regarded together, too. Business processes can be modeled and analyzed extensively with well known and established methods. The simple signs of static knowledge does not fulfill the requirements of a comprehensive and integrated approach of process-oriented knowledge management. The Knowledge Modeler Description Language KMDL is able to represent the creation, use and necessity of knowledge along common business processes. So KMDL can be used to formalize knowledge-intensive processes with a focus on certain knowledgespecific characteristics and to identify weak points in these processes. For computer-aided modeling and analyzing the tool K-Modeler is introduced.