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Water is vital for humankind and ecosystems alike. However, population growth, agricultural inten-sification, urbanization, and climate change embody potential hazards and pressures for water re-sources without existing long-term solutions. For two decades now, policy and governance literature has increasingly emphasised the role of learning in finding solutions to environmental policy prob-lems and effectively steering governance practices. Participation of non-state actors in decision mak-ing is widely considered to deliver learning products that support effective outcomes for environ-mental problems. Besides, the institutionalisation of participation through legislation opens up the necessity for (administrative) organizers to learn about participation as a governance mode in order to steer its effective working. Apart from participation, management approaches specifically aiming at driving learning, such as adaptive management (AM), are increasingly endorsed in water govern-ance. Despite the current prominence of learning in the environmental governance literature, evi-dence is lacking on which learning approaches function effectively regarding outcomes, whether participation aids learning, and how learning about successful governance arrangements is most effectively promoted.
This doctoral dissertation aims to contribute to clarification of the potential of learning for water governance. The goal is to trace and understand the environmental impacts of learning through par-ticipation (research aim 1) and adaptive management (research aim 2), and the effect of learning on participation as a governance mode (research aim 3).
For this goal, I engage in a predominantly qualitative research design following the case study method. For every specific research aim cases are selected and analysed qualitatively according to conceptual categories and mechanisms which are defined beforehand. Quantitative studies are used to corroborate the results for research aim 1 and 2 in a mixed-method approach to enhance the valid-ity of results. The empirical research context is European water governance, the implementation of the EU Water Framework and EU Floods Directive (WFD, FD) specifically. Eight cases of participa-tory decision-making across three European countries and five cases of AM in Northern Germany for WFD implementation are examined to identify whether learning in these processes enhanced envi-ronmental outcomes. To detect whether governance learning by public officials occurred, the design of participatory processes for FD implementation in ten German federal states is assessed.
The findings of research aim 1, understanding learning through participation and its effects on water governance, reveal that participatory planning led to learning through improved understandings at an individual and group level. Learning did, however, hardly shape effective outcomes. In the AM cases (research aim 2) managers and participants of implementing networks improved their knowledge as well as capacities, and spread the results. Nonetheless, environmental improvement was not necessarily linked to ecological learning. Regarding learning about participation as a govern-ance mode (research aim 3) all interviewed public officials in German federal states reported some degree of governance learning, which emerged not systematically but primarily drawing on own experiences and intuition.
These findings are condensed into three overarching lessons for learning in water governance: (1) Interactive communication seems to form the overall frame for participant and group learning. Framing of learning experiences turned out to play an important and potentially distorting role, for which professional facilitation and structured knowledge aggregation methods might be an im-portant counterbalance. (2) Learning did not automatically enhance environmental outcomes. It may thus not be an explanatory variable for policy outcomes, but a conditioning or intervening vari-able related to collective action, motivation for participation, and situating the issue at hand at wider societal levels. (3) The concepts of puzzling and powering might help understand learning as a source for effectiveness in the long-term when complemented with interest-based debates for creat-ing sufficient political agency of policy issues. Learning seen as puzzling processes might instruct acceptance and legitimization for new powering efforts. The perpetuation of learning in systematic ways and structures appears to characterize an alternative to this reflexive and strategic interplay, for which the water-related EU directives provide the basis.
These insights are of practical and policy relevance, particularly for policy makers and practitioners in the pursuit of learning. They may further contribute to the academic understanding of learning in water governance and its potential contribution to transforming and adapting water governance re-gimes, as envisioned in the European water-related directives.
Transforming the international food supply – Sustainable practices in small intermediary businesses
(2021)
The global food system faces many complex challenges, and there is general agreement that a
transformation is needed. While localizing food has been proposed as a means to this end,
changing global food supply chains may also lead to sustainable food systems. Because most
food systems today have an international dimension and are likely to remain connected, on one way or another, to other ones across the globe, it is necessary to find solutions to problems such as exploitation or environmental degradation. Current approaches such as Fairtrade certification often result, however, only in incremental change, and it is not clear how the current system could be transformed to make it sustainable. Addressing this challenge and the related gap in the literature, this study examines the emerging practices of small intermediary food businesses, which act between agricultural producers and consumers, and may have the potential to advance sustainability in international food supply. Including a systematic review of the literature on food systems change (Study#1), this dissertation adopts a transformational sustainability research methodology, which is solutionoriented, aims to integrate system, target and transformation knowledge, and is characterized by a transdisciplinary research practice. It conceptualizes challenges of international food supply and empirically investigates entrepreneurial solution approaches to address these challenges (Study#2). Two transdisciplinary research projects with small coffee businesses located in Germany, Mexico, and the U.S. were conducted to examine how these approaches could be implemented (Study#3, Study#4, Workshop reports 1+2).
This study shows that challenges in international food supply chains can be conceptualized as negative effects of large geographical and relational distances. It also identifies five
entrepreneurial solution approaches specified by twelve sustainability-oriented design
principles to address these negative effects. Creating relational proximity between supply chain actors, that is, strong relationships based on knowledge and care, seems to be a key factor to advance sustainability in international food supply.The results also suggest that by building such strong relationships and changing the fundamental principles of international food trade (e.g. putting people before profits), small intermediary businesses could be important agents in food system transformations. The findings also highlight the importance of collaboration with peers in local networks, in which new sustainable business practices could be shared and disseminated. Transdisciplinary collaborations involving both researchers and small food businesses could result in innovative solutions and, ultimately, a transformation of food systems. Although the small-sized businesses examined here are already highly committed to sustainability, this study has important implications for researchers and practitioners, including individual entrepreneurs, who aim to advance sustainability in international food supply.
This doctoral thesis contributes to the vibrant discourse on boundary-crossing collaboration in the German teacher education system. It offers theoretical advancements, programmatic guidelines, and empirical findings which advocate for a transdisciplinary perspective. In order to do so, the framing paper critically links persistent challenges and current reform processes in the teacher education system with theoretical foundations and conceptual positions of transdisciplinarity. Against this backdrop, four articles provide further insights on: a) how to expand the prevalent systematic of innovation and transfer approaches (top-down, bottom-up, cooperative) by a transdisciplinary perspective, b) outlining guiding principles for the realization of transdisciplinary collaboration in the context of a boundary-crossing research and development project, c) providing empirical findings on effect relationships between transdisciplinary dimensions of integration characteristics, and d) identifying empirical types of actors based on specific assessment patterns towards these characteristics.
Keywords
Boundary-Crossing Collaboration; Innovation and Transfer Strategies; Integration; Teacher Education; Theory-Practice Interrelation; Transdisciplinarity
TIME for REFL-ACTION: Interpersonal competence development in projectbased sustainability courses
(2021)
This dissertation investigates interpersonal competence development in project-based sustainability courses. Visions of a sustainable, safe, and just future cannot be reached by one individual alone. Thus, future change agents need to be able to collaborate and engage with stakeholders, to approach the manifold crises, challenges, problems, and conflicts we are facing together, and to promote and push forward sustainability transitions and transformations. Therefore, this research investigates three project-based sustainability graduate courses by comparing and contrasting teaching and learning outcomes, processes, and environments. A comparative case study approach using a Grounded Theory-inspired research design which triangulates several qualitative methods and perspectives is applied to allow for generalizable insights. Thereby, this dissertation provides empirically-informed insights which are further discussed in relation to selected teaching and learning theories. This leads, first, to a discussion of practical implications within (and beyond) sustainability higher education; and second, provides a theoretical foundation for interpersonal competence development in project-based learning settings – so that educating future change agents can gain momentum.
Findings of this research show that embracing conflicts when they occur (i.e. before they provoke cascading effects in the form of further conflicts down-the-road) is an effective strategy to help further develop interpersonal competence. This requires a conflict-embracing attitude. Attitude, in general, seems to be key in interpersonal competence and competence development overall. Self-reflection, if not explicitly required by outside influences (such as instructors), arises naturally from a self-reflective attitude, and is shown to provide the basis for developing interpersonal competence. This research introduces the term ‘Refl-Action’ which stresses the importance of pairing ‘learning by doing’ (as is often the focus in project-based learning settings) with conscious moments of ‘reflecting about the doing’.
More specifically, the research presented here identified four learning processes for interpersonal competence development: receiving input, experiencing, reflecting, and experimenting. Based on the empirical data, when the four processes are purposefully combined, following a meaningful sequence attitudes, knowledge, and skills in collaborative teamwork and impactful stakeholder engagement, are fostered (two facets of interpersonal competence). Each of the four learning processes is set in motion through various interactions students engage in during project-based sustainability courses: student-student (labeled ‘peer’), student-instructor (labeled ‘deliberate’), student-stakeholder (labeled ‘professional’), and student-mentor (labeled ‘supportive’) interactions. When these interactions are made explicit subjects of inquiry – i.e. the (inter-)action is linked with (self-)reflection – different learning processes complement one another: Interpersonal competence facets (collaborative teamwork and impactful stakeholder engagement) and domains (attitudes, knowledge, skills) are fostered. While, overall, interactions, processes, and conflicts have been identified as supportive for interpersonal competence development, trust has emerged as another variable inviting further investigation.
The findings of this thesis can be useful not only to support more conscious course design and facilitation, but should also be taken into consideration in other project-based (sustainability) settings. Both, sustainability novices and experts are regularly required to engage in teams and with stakeholders. Applying a conflict-embracing and self-reflective attitude allows to actively deal with differences encountered where diverse people interact, and to move forward on sustainability problems and visions in collaboration.
Uganda has been plagued by political instability in the past and wide spread abuse of human rights coupled with failed economic policies. However, the country has witnessed increased economic growth and the government has embarked on several poverty eradication programmes despite rising income inequalities and poverty in the country. The task of ensuring poverty as a human right in the country has not been an easy one for those charged with the duty of ensuring the right to freedom from poverty. This research examines the complexity of attaining the right to freedom from poverty in a country like Uganda. This study will also give a philosophical view on poverty and human rights and those responsible for ensuring the implementation of this right. Through the analysis, the research examined the key challenges faced in attaining the right to freedom from poverty in Uganda, discussed how poverty was defined through different perspectives. The information provided in the analysis is further examined by putting the theoretical findings in correspondence with the gathered empirical information for more definitive results of the study. The fundamental results and conclusion of this research revealed the overall challenges faced in regarding poverty as a human right which include how poverty is defined, the mindset, the political history of Uganda and so on. However, the study has recommended extensive research into the role of the family in ensuring poverty as a human right and further research in the effectiveness of the laws in Uganda in ensuring poverty as a human right.
Summary
Since the early 2000s, ecosystem services strongly gained significance as a research topic. While the number of papers strongly increased, the concept was further developed which changed the way it was applied. From highlighting the value of ecosystems by viewing them not only from an ecological, but also from an economic perspective in the beginning, it is nowadays, among others, used to map and calculate the monetary value of ecosystem services. Lately, the International Panel on Biodiversity and Ecosystem Services (IPBES) further developed the concept into Nature’s contributions to people (NCP) which puts a stronger emphasis on stakeholders and indigenous knowledge.
However, so far none of the conceptual developments managed to integrate the temporal dimension of ecosystem services into this concept, although this should be the basis for a sustainable long-term management of ecosystems and their services.
Therefore, I present three articles in this thesis that deal with temporal aspects of ecosystem services. In two of them I also present a proposal for a framework for the classification of ecosystem services based on their temporal dynamics.
In this dissertation I differentiate between two types of temporal aspects, both of which have in common that change takes place over a certain period of time. The concepts of transformation, transition and regime shift are used to describe changes in social or ecological systems as a whole, for example the transformation towards a more sustainable society. The temporal dynamics that I present, on the other hand, relate to the temporal changes in ecosystem services themselves.
The first article focuses on how the literature on ecosystem services incorporates social and ecological change, illustrated by the concepts of transformation, transition, and regime shift. The second and third articles deal with the temporal dynamics of ecosystem services. While the second article presents a preliminary framework for categorizing the temporal dynamics of ecosystem services, the third article uses this framework to test how the temporal dynamics of ecosystem services are represented in the literature.
Based on the insights from the three articles, I conclude that most of the studies on ecosystem services only focus on one point in time. One reason for this is that most studies are conducted over a maximum of a four-year time span which does not allow to monitor dynamics over longer time spans. In most articles that do account for temporal aspects, the focus is strongly on the side of ecological supply of ecosystem services rather than on the demand-side which leads to the exclusion of stakeholder perceptions and therefore, makes it impossible to connect ecosystem service demand and supply over time. Moreover, the concept of change that is used most often in the literature is that of regime shifts which comes from a purely ecological background and focuses mostly on changes that happened in the past. This neglects the possibility of change towards a positive outcome in the future. In general, there is a strong disciplinary divide in the concepts and terminology used. This leads to a lack of exchange between different scientific disciplines and non-academic stakeholders. Approaches that are needed to solve problems of ecosystem service management are therefore impeded.
To enable future research to better account for temporal aspects and connect supply and demand sides of ecosystem services with each other, I give four recommendations for future research. These are (I) take temporal dynamics into account by conducting long-term research, (II) ensure conceptual clarity, (III) create a solution-oriented agenda and (IV) take the demand side into account by involving stakeholders’ perceptions over time.
By following these recommendations, future research could help to support the sustainable management of ecosystem services as dynamics will be better known and targeted measures can be implemented.
This dissertation includes six articles tied together by the overarching question of how changes in public opinion, economics and public policy co-evolve in mature democracies, with a focus on redistributive (in seven European democracies) and secessionist preferences (in Catalonia and Scotland).
The theoretical inspiration derives from three sources: 1. the Macro Polity model by Erikson, MacKuen/Stimson, 2. the Thermostatic Responsiveness model by Soroka and Wlezien, and 3. the literature on representation gap models by Gilens, Elsaesser and others. The Macro Polity and Thermostatic Responsiveness models come with an optimistic undertone, emphasizing that public policies adapt to public opinion, producing the policy-opinion congruence that defines responsive government. The Representation Gap model, by contrast, is more pessimistic in highlighting that the preferences of low-income groups are generally worse represented in public policies than the preferences of middle-income and especially high-income groups. While there is evidence in favor of these models for the majoritarian political systems in the US, Canada and the UK, less is known about the validity of these models in proportional democracies of continental Europe. The contributions in this dissertation address this research gap by integrating the three models and combining nearly 500 surveys to study the evolution of European public opinion at the national and subnational level.
This doctoral thesis examines how European merger control law is applied to the energy sector and to which extent its application may facilitate the liberalisation of the electricity, natural gas and petroleum industries so that only those concentrations will be cleared that honour the principles of the liberalisation directives (IEMD and IGMD ). In its communication on an energy policy for Europe, adopted on 10/01/2007, the Commission emphasized that a real internal European energy market is essential to meet Europe’s three energy objectives, i.e. competitiveness to cut costs for citizens and undertakings to foster energy efficiency and investment, sustainability including emissions trading, and security of supply with high standards of public service obligations (Art. 106 TFEU). The EU issued three pre-liberalisation directives since the 1990s. Dissatisfied with the existing monopolistic structures, i.e. in Germany through demarcation and exclusive concession agreements for the supply of electricity and natural gas, which were until 1998 exempted from the cartel prohibition provision (§ 1 GWB), and the prevalence of exclusive rights on the energy markets, the Commission triggered infringement proceedings against four member states under Art. 258 TFEU. The CJEU confirmed that the Commission has the power to abolish monopoly rights under certain circumstances and the rulings had the effect of convincing the member states to enter into negotiations for an opening up of energy markets owing to the internal market energy liberalization directives of 1996 / 1998 / 2003 / 2009 / 2019 (IEMD and IGMD) . The core element of the IEMD and IGMD is to abolish exclusive rights and offer primarily at least large industrial electricity and gas consumers to choose their supplier (market opening for eligible consumers) and to grant negotiated or regulated third party access to transmission and distribution grids so to address natural monopolies. The second liberalization package of 2003 brought a widening of market opening and acceleration of pace of market opening to a greater number of eligible customers (all non-household consumers since July 2004 and all consumers since July 2007) and an increase in the provisions on management and legal unbundling. In parallel, two regulations regulate the access to cross-border electricity infrastructure (interconnectors) and the third party access to gas transmission networks. Two further Directives addressed the security of natural gas and power supply and a third deals with energy end use efficiency and services , a fourth dealt with the promotion of co-generation and a fifths covers marine environmental policy (Marine Strategy Framework Directive in combination with the Hydrocarbons-Licensing Directive ) backed by the public procurement directive in the energy sector. A regulation covers energy statistics. The implementation of the second energy package was slow and the Commission launched infringement proceedings against 5 member states in front of the CJEU (Art. 258, 256 TFEU). The 3rd energy package of 2009 addressed ownership unbundling of key-infrastructure ownership and energy wholesale and retail supply consisting of three regulations and two directives, deals with independent regulators, an agency for the cooperation of energy regulators (ACER) and cross-border cooperation (the European Network for transmission system operators for electricity and gas [ENTSO-E/G] and a regulation on cross-border grid access for electricity and natural gas. Another new regulation deals with market integrity and transparency . Hence, new regulations regulate guidelines on electricity balancing, congestion management, long-term capacity allocation, the code for grid access and transmission system operation . Other regulations address the guidelines for a European cross-border energy infrastructure, which has to be interpreted in the context of European environmental impact assessment law, the submission of data in electricity markets, establish a network code on demand connection , rule on a network code for grid access for direct current transmission systems, define guidelines on electricity transmission system operation, regulate a network code on electricity emergency , deal with security of natural gas supply and establish a programme to aid economic recovery by granting financial assistance. Finally, Directives promote the usage of renewable energies, regulate common oil stocks, the safety of offshore oil and gas production and the quality of petrol and diesel fuels.
The 4th liberalization package consists of a new IEMD2019 and IGMD2019, of a new regulation on European cross-border electricity trade, of a regulation on risk preparedness in the electricity sector, of a new agency for the cooperation of European energy regulators, addresses energy efficiency and rules on good governance in the energy union.
Since 2008, the Art. 194 I-II TFEU governs the ordinary legislation procedure in the energy sector (internal market in energy, security of energy supply, energy efficiency, energy saving, renewable energies, interconnection of energy grids) notwithstanding of unanimous decision making in case of energy taxation matters (Art. 194 III TFEU).
A brief analysis of the economic implications of concentrations is followed by an assessment of the evolution of European merger control law under Art. 66 ECSCT, Art. 101 and 102 TFEU, the merger control regulation of 1989 and its significant amendments of 1997 and 2004. Then, the theoretical findings are contrasted to the results of recent merger proceedings in the energy sector with a focus on the VEBA/VIAG decision. Several deficiencies are established which limit the efficacy of merger control as a tool of offsetting shortcomings in the secondary EC law with regard to the liberalisation of the electricity and gas supply industry (IEMD and IGMD). Commitments proposed by the parties of a given concentration and accepted by the Commission as being sufficient to remedy a serious potential of dominance may only be of subsidiary relevance to the liberalisation of sectors owing to a number of analytical and practical drawbacks. One dominant drawback relates to the fact that the commitments depend always on parties' proposals and can never be imposed ex officio. Others relate to the blunt authorisations provided by the wording of Art. 6 and 8 MR1997 and MR2004 as to the implementation of undertakings.
With regard to acquisitions of U.K. regional electricity companies by EdF, it is elaborated that the current merger control law leaves no scope for reciprocity considerations regarding acquisitions by incumbent companies in liberalised markets even though the acquirer is a protected public undertaking. Moreover, it is established that different decisions apply inconsistent market definitions. By means of the VEBA/VIAG and RWE/VEW cases, the question is addressed which causes are responsible for the established analytical and practical deficiencies of merger control in the energy sector. It is stated that the weaknesses of the IEMD 2009/72/EC and IGMD 2009/73/EC are partly responsible for weak undertakings which do not sufficiently remove the scope for dominance on the affected markets and which do not rule out any possibility of impediments of effective negotiated or regulated TPA and do not remove any commercial incentive of the grid subsidiaries of the vertically integrated companies as to access which discriminates between intra and extra group applicants. It is reported that another argument relates to the limited scope that the Commission has if it wants to remedy deficiencies of written primary law owing to the extraordinary nature of the implied powers doctrine based on the principle of constitutional state. Adverse political influence against competition authorities is also judged. Further, it is analysed that accidental regulation based on incidental provisions imposed on undertakings which may or not implement a concentration is by no means a consistent and non-discriminatory and predictable tool to overcome drawbacks of primary or secondary European law in a given sector owing to the democratic principle and the constitutional state doctrine. It is discussed that secondary legislation with regard to energy networks is inter alia restricted by Art. 345 TFEU and provisions of national constitutions which protect property rights against dis-proportionate expropriations or re-definitions of property. Further, legal authorisations of said calibre will have to be connected to a system of state liability law. Adverse political pressures are considered. The same is true for egoistic national policies which abstain from transnational task forces in order to settle difficulties and disputes. Furthermore, the adverse effect of different stages of the maturity of domestic markets, different consumer patterns and a potential isolation of the system is not neglected, because these conditions make it more difficult to apply consistent standards as to the appropriate market definition in order to facilitate harmonisation. The implementation of the VEBA/VIAG merger is discussed, as the former was further complicated owing to specifically evaluated circumstances which were difficult to predict. Nevertheless, the Commission is not exempted from the duty to take due care concerning potential impediments as to the realisation of parties' commitments. In contrast to the negative aspects, it can be highlighted that the Commission quickly realised flaws of the energy liberalisation project as expressed by the present form of the IEMD and IGMD. Consequently, the co-ordinative and innovative mechanisms of Florence and Madrid were created in order to boost the development of effective cross border trade - i.e. tariff systems and interconnector congestion management. It will be concluded that undertakings put forward by the parties and accepted by the Commission should be restricted to a subsidiary legal instrument, only applied if strictly necessary to overcome certain detrimental aspects of given concentrations in order to provide a hint for the legislator, to specify its legislation. Competition as a de-central distributor of risk, wealth and power will be extended to its maximum extent, if wholesale consumers benefit from lower energy prices which allow greater productivity of European products on the world markets in combination with higher environmental standards owing to modern, cost-efficient plants. A successful implementation will be described by liquid spot markets for power accompanied by tools of financial risk management like forwards, futures and options. These will be valuable indicators of efficient liberalisation of the European electricity and gas supply industries.
The dissertation consists of three scientific papers and a synopsis. The synopsis addresses the relevance of the dissertation and lists the key factors for the sustainability transition in the electricity system as a common denominator of the three papers.
The relevance of the dissertation results, on the one hand, from the urgency of the sustainability transition in the electricity system and an insufficient transition willingness of the eastern European Member States. On the other hand, the Multi-Level-Perspective as one of the most important scientific frameworks to grasp transitions does not provide a sufficient explanation of its mechanisms. Moreover, Demand Response aggregators as new enterprises on the European electricity market and potential reform initiators are still under researched. The following key factors for the sustainability transition of the electricity system have been identified: supply security concerns, Europeanisation, policy making and the dominance of short-term oriented economic evaluation.
Paper 1
The underlying factors in the uptake of electricity demand response: The case of Poland
Author: Katarzyna Ewa Rollert
Published: Utilities Policy, Volume 54, October 2018, 11-21, https://doi.org/10.1016/j.jup.2018.07.002
Demand response (DR) is considered crucial for a more reliable, sustainable, and efficient electricity system. Nevertheless, DR’s potential still remains largely untapped in Europe. This study sheds light on the roots of this problem in the context of Poland. It suggests that unfavorable regulation is symptomatic of the real, underlying barriers. In Poland, these barriers are coal dependence and political influence on energy enterprises. As main drivers, supply security concerns, EU regulatory pressure, and a positive cost-benefit profile of DR in comparison to alternatives, are revealed. A conceptual model of DR uptake in electricity systems is proposed.
Paper 2
Gaining legitimacy for sustainability transition: A social mechanisms approach
Authors: Ursula Weisenfeld and Katarzyna Ewa Rollert
Review and re-submit: Environmental Innovation and Societal Transitions / August 2021
Applying a social mechanisms approach to the Multi-Level Perspective, we conceptualize mechanisms of socio-technical transitions and of gaining legitimacy for transitions as co-evolutionary drivers and outcomes. Situational, action-formational, and transformational mechanisms that operate as drivers of change in a socio-technical transition require corresponding framing and framing contests to achieve legitimacy for that transition. We illustrate our conceptual insight with the case of the coal dependent Polish electricity system.
Paper 3
Demand response aggregators as institutional entrepreneurs in the European electricity market
Author: Katarzyna Ewa Rollert
Under review: Journal of Cleaner Production / August 2021
Demand Response (DR) aggregators act as intermediaries between electricity customers and network operators to tap the potential of the demand-based flexibility. This qualitative study reveals DR aggregators as institutional entrepreneurs that struggle to reform the still largely supply-oriented European electricity market. Unfavourable regulation, low value of flexibility, resource constraints, complexity, and customer acquisition are the key challenges DR aggregators face. To overcome them they apply a combination of strategies: lobbying, market education, technological proficiency, and upscaling the business. The study highlights DR aggregation as an architectural innovation that alters the interplay between key actors of the electricity system and provides policy recommendations including the necessity to assess the real value of DR in comparison to other flexibility sources by taking all externalities into account, a technology-neutral approach to market design and the need for simplification of DR programmes, and common standards to reduce complexity and uncertainty for DR providers.
Mental health is an important factor in an individuals’ life - more than 300 million individuals suffered from depression in 2015. Online-based interventions have been developed for the treatment of various mental disorders. These types of interventions
have proven their efficacy and can lead to positive outcomes for suffering patients. During these interventions, a large amount of patient-specific data is gathered that can be utilized to increase treatment outcomes by informing decision-making processes of psychotherapists, experts in the field, and patients.
The articles included in this dissertation focus on the analysis of such data collected in digital psychological treatments by using machine learning approaches. This dissertation utilizes various machine learning methods such as Bayesian models, regularization techniques, or decision trees to predict different psychological factors, such as mood or self-esteem, dropout of patients, or treatment outcomes and costs. These models are evaluated using a variety of performance metrics, for example, receiver operating characteristics curve, root mean square error, or specialized performance metrics for Bayesian inference. These types of analyses can support decision- making for psychologists and patients, which can, in turn, lead to better recommendations and subsequently to increased outcomes for patients and simultaneously more insight about the interplay between psychological factors. The contribution of this interdisciplinary dissertation is manifold and can be classified at the intersection of Information Systems, health economics, and psychology. The analysis of user journey data has not yet been fully examined in the field of psychological research. A process for this endeavor is developed and a technical implementation is provided for the research community. The application of machine learning in this context is still in its infancy. Thus, another contribution is the exploration and application of machine learning techniques for the revelation of correlations between psychological factors or characteristics and treatment outcomes as well as their prediction. Additionally, economic factors are predicted to develop a process for treatment type recommendations. This approach can be utilized for finding the optimal treatment type for patients on an individual level considering predicted treatment outcomes and costs. By evaluating the predictive accuracy of multiple machine learning techniques based on various performance metrics, the importance of considering heterogeneity among patients’ behavior and affect is highlighted in some articles. Furthermore, the potential of machine learning-based decision support systems in clinical practice has been examined from a psychotherapists’ point of view.