This is an open access title available under the terms of a CC BY-NC-ND 4.0 License. It is free to read, download and share at Elgaronline. Centralizing the role of land and landowners, Spatial Flood Risk Management brings together knowledge from socio-economy, public policy, hydrology, geomorphology, and engineering to establish an interdisciplinary knowledge base on spatial approaches to managing flood risks. Discussing key barriers and sharing evidence-based best practices to flood risk management, international contributors involved in the LAND4FLOOD EU COST Action initiative (CA16209) seek transferrable solutions to the implementation challenges of nature-based solutions. Introducing the concept of spatial flood risk management, the multi-national teams of authors consider the notion of land through three analytical lenses: as a biophysical system, a socio-economic resource, and a solution to flood-risk management. Advocating for a more comprehensive approach, the book explores options of where and how to store water within catchments, including decentralized water retention in the hinterland, flood storage along rivers, and planned flooding in resilient cities. Bringing together the existing knowledge on the relation between flood risk management and land with an international and interdisciplinary scope, this book will prove invaluable to academics, policy makers and public authorities involved in flood risk management, urban planners, and governing environmental bodies.

Property Rights and Climate Change explores the multifarious relationships between different types of climate-driven environmental changes and property rights. This original contribution to the literature examines such climate changes through the lens of property rights, rather than through the lens of land use planning. The inherent assumption pursued is that the different types of environmental changes, with their particular effects and impact on land use, share common issues regarding the relation between the social construction of land via property rights and the dynamics of a changing environment. Making these common issues explicit and discussing the different approaches to them is the central objective of this book. Through examining a variety of cases from the Arctic to the Australian coast, the contributors take a transdisciplinary look at the winners and losers of climate change, discuss approaches to dealing with changing environmental conditions, and stimulate pathways for further research. This book is essential reading for lawyers, planners, property rights experts and environmentalists.

This book provides an introduction to spatial planning in the Netherlands. It explores the academic underpinnings of the discipline and its practical implications, making use of insights on planning practices from the Netherlands. As an academic book with relevance for spatial planning teaching and practice, the relation between planning practice and planning as an academic discipline are discussed. A key analytical concept is introduced to discuss the different dimensions of planning: the planning triangle. This framework helps to bridge the strategic and conceptual elements of planning with its realization. The object, process, and context of planning and its relations are discussed. The core of the academic discipline and profession of spatial planning entails looking (far) into the future, stimulating discussion, formulating a desired future direction through an informal and collective planning process, and then formalizing and placing current action into that future perspective. In that sense, spatial planning can be understood as the strategic organization of hopes and expectations. As a study book it is suitable for students of planning at various universities, but also for students in higher professional education. For those involved in the professional field of spatial planning, this book offers a sound foundation.

Flood Resilience of Private Properties examines the division and balance of responsibilities between the public and the private when discussing flood resilience of private properties. Flooding is an expensive climate-related disaster and a threat to urban life. Continuing development in flood-prone zones compound the risks. Protecting all properties to the same standards is ever more challenging. Research has focused on improved planning and adapting publicly-owned infrastructure such as streets, evacuation routes, and retention ponds. However, damages often happen on private land. To realize a flood-resilient city, owners of privately-owned residential houses also need to act. Measures such as mobile barriers and backwater valves or avoiding vulnerable uses in basements can make homes more flood-resilient. But private owners may be unaware of flooding risks or may lack the means and knowledge to act. Incentives may be insufficient, while fragmented or unclear property rights and responsibilities entrench inertia. The challenge is motivating homeowners to take steps. Political and societal systems influence the action citizens are prepared to take and what they expect their governments to do. The responsibility for implementing such measures is shared between the public and the private domain in different degrees in different countries. This book will be of great interest to scholars of water law, property rights, flood risk management and climate adaptation. This book was originally published as a special issue of Water International.

Financial schemes for flood recovery, if properly designed and implemented, might increase flood resilience. However, options for the increase of flood resilience during the recovery phase are to a large extent overlooked and the diversity of existing schemes shows that there has been a lack of consensus on how to achieve resilient flood recovery. Financial Schemes for Resilient Flood Recovery investigates how the implementation of financial schemes (government relief subsidies, insurance schemes, buy-outs, etc.) might increase flood resilience. The chapters included in this edited volume address the following questions: Shall government relief subsidies exist when there is flood insurance in place, and, if so, how might they both be coordinated? Where (or how) to decide about build back better incentives and where to go for planned relocation programs? What is the distributional equity of financial schemes for flood recovery, and has it been sufficiently treated? The book covers different approaches to flood recovery schemes with specific intervention rationales in different countries. Empirical evidence provided clearly shows the great diversity of financial flood recovery schemes. This diversity of state-funded schemes, private-based insurance schemes, and hybrids as well as planned relocation schemes indicates a lack of a consistent and strategic approach in flood risk management and flood resilience about flood recovery. The chapters in this book were originally published in the Environmental Hazards.

Property Rights and Climate Change explores the multifarious relationships between different types of climate-driven environmental changes and property rights. This original contribution to the literature examines such climate changes through the lens of property rights, rather than through the lens of land use planning. The inherent assumption pursued is that the different types of environmental changes, with their particular effects and impact on land use, share common issues regarding the relation between the social construction of land via property rights and the dynamics of a changing environment. Making these common issues explicit and discussing the different approaches to them is the central objective of this book. Through examining a variety of cases from the Arctic to the Australian coast, the contributors take a transdisciplinary look at the winners and losers of climate change, discuss approaches to dealing with changing environmental conditions, and stimulate pathways for further research. This book is essential reading for lawyers, planners, property rights experts and environmentalists.

In dealing with scarce land, planners often need to interact with, and sometimes confront, property right-holders to address complex property rights situations. To reinforce their position in situations of rivalrous land uses, planners can strategically use and combine different policy instruments in addition to standard land use plans. Effectively steering spatial development requires a keen understanding of these instruments of land policy. This book not only presents how such instruments function, it additionally examines how public authorities strategically manage the scarcity of land, either increasing or decreasing it, to promote a more sparing use of resources. It presents 13 instruments of land policy in specific national contexts and discusses them from the perspectives of other countries. Through the use of concrete examples, the book reveals how instruments of land policy are used strategically in different policy contexts.

Flood Resilience of Private Properties examines the division and balance of responsibilities between the public and the private when discussing flood resilience of private properties. Flooding is an expensive climate-related disaster and a threat to urban life. Continuing development in flood-prone zones compound the risks. Protecting all properties to the same standards is ever more challenging. Research has focused on improved planning and adapting publicly-owned infrastructure such as streets, evacuation routes, and retention ponds. However, damages often happen on private land. To realize a flood-resilient city, owners of privately-owned residential houses also need to act. Measures such as mobile barriers and backwater valves or avoiding vulnerable uses in basements can make homes more flood-resilient. But private owners may be unaware of flooding risks or may lack the means and knowledge to act. Incentives may be insufficient, while fragmented or unclear property rights and responsibilities entrench inertia. The challenge is motivating homeowners to take steps. Political and societal systems influence the action citizens are prepared to take and what they expect their governments to do. The responsibility for implementing such measures is shared between the public and the private domain in different degrees in different countries. This book will be of great interest to scholars of water law, property rights, flood risk management and climate adaptation. This book was originally published as a special issue of Water International.

Extreme floods cause enormous damage in floodplains, which levees cannot prevent. Therefore, it is vital for spatial planning to provide space for water retention in these areas. Land use planners, water management agencies, landowners, and policymakers all agree on this challenge, but attempts to make the space for rivers to provide retention are generally not very successful. Adopting an innovative interdisciplinary approach, this book examines how society can manage the use of the floodplains along rivers in the face of extreme floods, focusing in particular on the relation between social arrangements and the elemental forces of floods. The book firstly analyses why contemporary floodplain management is so often clumsy and ineffective by looking at various real-life situations in Germany, using Cultural Theory to provide a much-needed, but previously neglected social perspective. These analyses show a pattern of activity resulting from different rationalities which dominate the floodplains in different phases. During extreme floods, it is rational to manage floodplains as dangerous areas; sandbags and disaster management dominate the scene. After some time, the rationality of control takes over the floodplain management; policymakers discuss flood risk and water managers build levees. When public attention diminishes, floodplains become inconspicuous until more and more stakeholders regard floodplains as profitable land. The current system of planning, law, and property rights even encourages stakeholders to act out their plural rationalities. A permanent dynamic imbalance of different rationalities leads to a robust social construction of the floodplains which results in viable but clumsy floodplains. In the course of time, however, the patterns of activity in the floodplains lead to an increase in intensity and frequency of extreme floods, and to more vulnerable potential damages in the floodplains. Risk increases. Coping with this situation needs another kind of floodplain management. This book proposes an innovative concept - Large Areas for Temporary Emergency Retention (LATER) - in "Clumsy Floodplains" as an alternative to levee-based flood protection. The concept aims at reducing damage by extreme floods in a catchment area by inundating less valuable areas to protect places that are more valuable. It finally examines how this LATER concept might be implemented in areas where there is currently a clumsy style of floodplain management, what interventions are required and how these might come about effectively. Again, using Cultural Theory, the book puts forward a valuable land policy solution which aims at implementing LATER in clumsy floodplains and which develops an obligatory insurance against natural hazards as a responsive land policy for LATER. The book represents the author's PhD research, which he conducted as research assistant at the department for Land Policy, Land Management and Municipal Geoinformation at the School of Spatial Planning, TU Dortmund University, Germany.

Financial schemes for flood recovery, if properly designed and implemented, might increase flood resilience. However, options for the increase of flood resilience during the recovery phase are to a large extent overlooked and the diversity of existing schemes shows that there has been a lack of consensus on how to achieve resilient flood recovery. Financial Schemes for Resilient Flood Recovery investigates how the implementation of financial schemes (government relief subsidies, insurance schemes, buy-outs, etc.) might increase flood resilience. The chapters included in this edited volume address the following questions: Shall government relief subsidies exist when there is flood insurance in place, and, if so, how might they both be coordinated? Where (or how) to decide about build back better incentives and where to go for planned relocation programs? What is the distributional equity of financial schemes for flood recovery, and has it been sufficiently treated? The book covers different approaches to flood recovery schemes with specific intervention rationales in different countries. Empirical evidence provided clearly shows the great diversity of financial flood recovery schemes. This diversity of state-funded schemes, private-based insurance schemes, and hybrids as well as planned relocation schemes indicates a lack of a consistent and strategic approach in flood risk management and flood resilience about flood recovery. The chapters in this book were originally published in the Environmental Hazards.

Extreme floods cause enormous damage in floodplains, which levees cannot prevent. Therefore, it is vital for spatial planning to provide space for water retention in these areas. Land use planners, water management agencies, landowners, and policymakers all agree on this challenge, but attempts to make the space for rivers to provide retention are generally not very successful. Adopting an innovative interdisciplinary approach, this book examines how society can manage the use of the floodplains along rivers in the face of extreme floods, focusing in particular on the relation between social arrangements and the elemental forces of floods. The book firstly analyses why contemporary floodplain management is so often clumsy and ineffective by looking at various real-life situations in Germany, using Cultural Theory to provide a much-needed, but previously neglected social perspective. These analyses show a pattern of activity resulting from different rationalities which dominate the floodplains in different phases. During extreme floods, it is rational to manage floodplains as dangerous areas; sandbags and disaster management dominate the scene. After some time, the rationality of control takes over the floodplain management; policymakers discuss flood risk and water managers build levees. When public attention diminishes, floodplains become inconspicuous until more and more stakeholders regard floodplains as profitable land. The current system of planning, law, and property rights even encourages stakeholders to act out their plural rationalities. A permanent dynamic imbalance of different rationalities leads to a robust social construction of the floodplains which results in viable but clumsy floodplains. In the course of time, however, the patterns of activity in the floodplains lead to an increase in intensity and frequency of extreme floods, and to more vulnerable potential damages in the floodplains. Risk increases. Coping with this situation needs another kind of floodplain management. This book proposes an innovative concept - Large Areas for Temporary Emergency Retention (LATER) - in "Clumsy Floodplains" as an alternative to levee-based flood protection. The concept aims at reducing damage by extreme floods in a catchment area by inundating less valuable areas to protect places that are more valuable. It finally examines how this LATER concept might be implemented in areas where there is currently a clumsy style of floodplain management, what interventions are required and how these might come about effectively. Again, using Cultural Theory, the book puts forward a valuable land policy solution which aims at implementing LATER in clumsy floodplains and which develops an obligatory insurance against natural hazards as a responsive land policy for LATER. The book represents the author's PhD research, which he conducted as research assistant at the department for Land Policy, Land Management and Municipal Geoinformation at the School of Spatial Planning, TU Dortmund University, Germany.

A society that intensifies and expands the use of land and water in urban areas needs to search for solutions to manage the frontiers between these two essential elements for urban living. Sustainable governance of land and water is one of the major challenges of our times. Managing retention areas for floods and droughts, designing resilient urban waterfronts, implementing floating homes, or managing wastewater in shrinking cities are just a few examples where spatial planning steps into the governance arena of water management and vice versa. However, water management and spatial planning pursue different modes of governance, and therefore the frontiers between the two disciplines require developing approaches for setting up governance schemes for sustainable cities of the future. What are the particularities of the governance of land and water? What is the role of regional and local spatial planning? What institutional barriers may arise? This book focuses on questions such as these, and covers groundwater governance, water supply and wastewater treatment, urban riverscapes, urban flooding, flood risk management, and concepts of resilience. The project resulted from a Summer School by the German Academy for Spatial Research and Planning (ARL) organized by the editors at Utrecht University in 2013. This book was published as a special issue of Water International.

A society that intensifies and expands the use of land and water in urban areas needs to search for solutions to manage the frontiers between these two essential elements for urban living. Sustainable governance of land and water is one of the major challenges of our times. Managing retention areas for floods and droughts, designing resilient urban waterfronts, implementing floating homes, or managing wastewater in shrinking cities are just a few examples where spatial planning steps into the governance arena of water management and vice versa. However, water management and spatial planning pursue different modes of governance, and therefore the frontiers between the two disciplines require developing approaches for setting up governance schemes for sustainable cities of the future. What are the particularities of the governance of land and water? What is the role of regional and local spatial planning? What institutional barriers may arise? This book focuses on questions such as these, and covers groundwater governance, water supply and wastewater treatment, urban riverscapes, urban flooding, flood risk management, and concepts of resilience. The project resulted from a Summer School by the German Academy for Spatial Research and Planning (ARL) organized by the editors at Utrecht University in 2013. This book was published as a special issue of Water International.

In dealing with scarce land, planners often need to interact with, and sometimes confront, property right-holders to address complex property rights situations. To reinforce their position in situations of rivalrous land uses, planners can strategically use and combine different policy instruments in addition to standard land use plans. Effectively steering spatial development requires a keen understanding of these instruments of land policy. This book not only presents how such instruments function, it additionally examines how public authorities strategically manage the scarcity of land, either increasing or decreasing it, to promote a more sparing use of resources. It presents 13 instruments of land policy in specific national contexts and discusses them from the perspectives of other countries. Through the use of concrete examples, the book reveals how instruments of land policy are used strategically in different policy contexts.

This open access book addresses the various disciplinary aspects of nature-based solutions in flood risk management on private land. In recent decades, water management has been moving towards nature-based solutions. These are assumed to be much more multi-purpose than traditional "grey infrastructures" and seem to be regarded as a panacea for many environmental issues. At the same time, such measures require more - and mostly privately owned - land and more diverse stakeholder involvement than traditional (grey) engineering approaches. They also present challenges related to different disciplines. Nature-based solutions for flood risk management not only require technical expertise, but also call for interdisciplinary insights from land-use planning, economics, property rights, sociology, landscape planning, ecology, hydrology, agriculture and other disciplines to address the challenges of implementing them. Ultimately, nature-based flood risk management is a multi-disciplinary endeavor. Featuring numerous case studies of nature-based flood risk management accompanied by commentaries, this book presents brief academic reflections from two different disciplinary perspectives that critically highlight which specific aspects are of significance, and as such, underscore the multi-disciplinary nature of the challenges faced.

Countries which take spatial planning seriously should take planning law and property rights also seriously. There is an unavoidable logical relationship between planning, law, and property rights. However, planning by law and property rights is so familiar and taken for granted that we do not think about the theory behind it. As a result, we do not think abstractly about its strengths and weaknesses, about what can be achieved with it and what not, how it can be improved, how it could be complemented. Such reflections are essential to cope with current and future challenges to spatial planning. This book makes the (often implicit) theory behind planning by law and property rights explicit and relates it to those challenges. It starts by setting out what is understood by planning by law and property rights, and investigates - theoretically and by game simulation - the relationships between planning law and property rights. It then places planning law and property rights within their institutional setting at three different scales: when a country undergoes enormous social and political change, when there is fundamental political debate about the power of the state within a country, and when a country changes its legislation in response to European policy. Not only changing institutions, but also global environmental change, pose huge challenges for spatial planning. The book discusses how planning by law and property rights can respond to those challenges: by adaptive planning), by adaptable property rights, and by public policies at the appropriate geographical level. Planning by law and property rights can fix a local regime of property rights which turns out to be inappropriate but difficult to change. It questions whether such regimes can be changed and whether planning agencies can make such undesirable lock-ins less likely by reducing market uncertainty and, if so, by what means.

This book provides an overview of the typical nature-based solutions (NBS) used for flood mitigation at different scales and in different areas (e.g. from catchment to hillslope scale; from urban to coastal areas). NBS can provide several ecosystem services, such as water regulation and water quality enhancement, and as such offer relevant technical solutions to complement typical grey infrastructures to mitigate flood hazard and water quality problems. In recent years, political awareness and interest from the scientific community have led to increasing implementation of NBS worldwide. In light of this trend, this book provides valuable insights into the environmental aspects of NBS, particularly their effectiveness for flood and pollution mitigation, and discusses socio-economic aspects related to the implementation of NBS, including regulatory aspects, cost, and citizens' perceptions of NBS. Compiling the latest research, the book furthers our understanding of the role of NBS for flood mitigation and its relation to environmental aspects, to guide scientists and stakeholders in future NBS projects. It is intended for the scientific community and stakeholders, such as spatial planners and landscape managers. Chapter "Nature-based solutions for flood mitigation and resilience in urban areas" is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Planning, Law and Economics sets out a new framework for applying a legal approach to spatial planning, showing how to improve the practice and help achieve its aims. The book covers planning laws, citizens' rights and property rights, asking 'What rules do we want to make and, where necessary, enforce? And how do we want to apply them in planning practice?' This book sets out, in general and illustrated with concrete examples, how the three types of law mentioned above are unavoidably involved in all types of spatial planning. The book also makes clear that these laws can be combined in different ways, each way a particular approach to the practice of spatial planning (regulative planning, structuring markets, pro-active planning, collaborative planning, etc.). Throughout, the book shows what legal approaches can be taken to spatial planning, and uses a four-part framework to evaluate the effects of choosing such an approach. The spatial planning should be effective, legitimate, morally just and economically sound. In particular the book details why the economic effects for society are important and how spatial planning affects how the economic resources of land and buildings are used. The book will be invaluable to students and planners to understand the relationship between their actions and the basic principles of the rule of law in a democratic, liberal society.

Due to their business activities, banks are exposed to many different risk types. Peter Grundke shows how various risk exposures can be aggregated to a comprehensive risk position. Furthermore, computational problems of determining a loss distribution that comprises various risk types are analyzed.

Planning, Law and Economics sets out a new framework for applying a legal approach to spatial planning, showing how to improve the practice and help achieve its aims. The book covers planning laws, citizens' rights and property rights, asking 'What rules do we want to make and, where necessary, enforce? And how do we want to apply them in planning practice?' This book sets out, in general and illustrated with concrete examples, how the three types of law mentioned above are unavoidably involved in all types of spatial planning. The book also makes clear that these laws can be combined in different ways, each way a particular approach to the practice of spatial planning (regulative planning, structuring markets, pro-active planning, collaborative planning, etc.). Throughout, the book shows what legal approaches can be taken to spatial planning, and uses a four-part framework to evaluate the effects of choosing such an approach. The spatial planning should be effective, legitimate, morally just and economically sound. In particular the book details why the economic effects for society are important and how spatial planning affects how the economic resources of land and buildings are used. The book will be invaluable to students and planners to understand the relationship between their actions and the basic principles of the rule of law in a democratic, liberal society.

Countries which take spatial planning seriously should take planning law and property rights also seriously. There is an unavoidable logical relationship between planning, law, and property rights. However, planning by law and property rights is so familiar and taken for granted that we do not think about the theory behind it. As a result, we do not think abstractly about its strengths and weaknesses, about what can be achieved with it and what not, how it can be improved, how it could be complemented. Such reflections are essential to cope with current and future challenges to spatial planning. This book makes the (often implicit) theory behind planning by law and property rights explicit and relates it to those challenges. It starts by setting out what is understood by planning by law and property rights, and investigates - theoretically and by game simulation - the relationships between planning law and property rights. It then places planning law and property rights within their institutional setting at three different scales: when a country undergoes enormous social and political change, when there is fundamental political debate about the power of the state within a country, and when a country changes its legislation in response to European policy. Not only changing institutions, but also global environmental change, pose huge challenges for spatial planning. The book discusses how planning by law and property rights can respond to those challenges: by adaptive planning), by adaptable property rights, and by public policies at the appropriate geographical level. Planning by law and property rights can fix a local regime of property rights which turns out to be inappropriate but difficult to change. It questions whether such regimes can be changed and whether planning agencies can make such undesirable lock-ins less likely by reducing market uncertainty and, if so, by what means.

This open access book addresses the various disciplinary aspects of nature-based solutions in flood risk management on private land. In recent decades, water management has been moving towards nature-based solutions. These are assumed to be much more multi-purpose than traditional "grey infrastructures" and seem to be regarded as a panacea for many environmental issues. At the same time, such measures require more - and mostly privately owned - land and more diverse stakeholder involvement than traditional (grey) engineering approaches. They also present challenges related to different disciplines. Nature-based solutions for flood risk management not only require technical expertise, but also call for interdisciplinary insights from land-use planning, economics, property rights, sociology, landscape planning, ecology, hydrology, agriculture and other disciplines to address the challenges of implementing them. Ultimately, nature-based flood risk management is a multi-disciplinary endeavor. Featuring numerous case studies of nature-based flood risk management accompanied by commentaries, this book presents brief academic reflections from two different disciplinary perspectives that critically highlight which specific aspects are of significance, and as such, underscore the multi-disciplinary nature of the challenges faced.

This book provides an important overview of how climate-driven natural hazards like river or pluvial floods, droughts, heat waves or forest fires, continue to play a central role across the globe in the 21st century. Urban resilience has become an important term in response to climate change. Resilience describes the ability of a system to absorb shocks and depends on the vulnerability and recovery time of a system. A shock affects a system to the extent that it becomes vulnerable to the event. This book focus examines how private property-owners might implement such measures or improve their individual coping and adaptive capacity to respond to future events. The book looks at the existence of various planning, legal, financial incentives and psychological factors designed to encourage individuals to take an active role in natural hazard risk management and through the presentation of theoretical discussions and empirical cases shows how urban resilience can be achieved. In addition, the book guides the reader through different conceptual frameworks by showing how urban regions are trying to reach urban resilience on privately-owned land. Each chapter focuses on different cultural, socio-economic and political backgrounds to demonstrate how different institutional frameworks have an impact.

Dieses Buch bietet einen breiten UEberblick uber die Bankbetriebslehre. Mit dem Instrumentarium der Kapitalmarkttheorie und der Informationsoekonomik werden die Funktionen, die Banken in einem Finanzsystem erfullen, herausgearbeitet und die typischen Bankgeschafte erklart. Die wichtigsten Facetten des Bankmanagements werden behandelt, ebenso wie die theoretischen Grundlagen der Regulierung. Dem Trend der Regulierungsvorschriften folgend werden das Management und die bankenaufsichtliche Messung der einzelnen Risikoarten integriert dargestellt. Weiterentwicklungen in der Bankenaufsicht wurden eingearbeitet. Die Autoren sind die Inhaber der Banklehrstuhle an den drei Universitaten, von denen Personalchefs von Banken und Versicherungen ihre BWL-Absolventen am liebsten rekrutieren (Junge Karriere, 23.4.2004).

Uber eines scheint sich die Weltgemeinschaft im Zeitalter der Globalisierung weitgehend einig zu sein: Ohne internationale Vertrage lassen sich bestimmte okonomische, okologische und soziale Ziele nicht erreichen. Folgerichtig gibt es zahlreiche solcher Ubereinkunfte mit teilweise konkret formulierten Zielen. Doch wie steht es um deren Zielerreichung? Wie kann die Zielerreichung erhoht werden? Im Rahmen der Veranstaltungsreihe Gestaltung der Globalisierung mit Hilfe von Internationalen Ubereinkommen wurde die aktuelle wissenschaftliche Diskussion zu diesen Fragestellungen naher beleuchtet. "