27 resultados para Retail electricity market
em Aston University Research Archive
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This thesis analyses the impact of deregulation on the theory and practice of investment decision making in the electricity sector and appraises the likely effects on its long term future inefficiency. Part I describes the market and its shortcomings in promoting an optimal generation margin and plant mix and in reducing prices through competition. A full size operational model is developed to simulate hour by hour operation of the market and analyse its features. A relationship is established between the SMP and plant mix and between the LOLP and plant margin and it is shown bow a theoretical optimum can be derived when the combined LOLP payments and the capital costs of additional generation reach a minimum. A comparison of prices against an idealised bulk supply tariff is used to show how energy prices have risen some 12% in excess of what might have occurred under the CEGB regime. This part concludes with proposals to improve the marl
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Five principles for accommodating cultural nuances
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Smart grid technologies have given rise to a liberalised and decentralised electricity market, enabling energy providers and retailers to have a better understanding of the demand side and its response to pricing signals. This paper puts forward a reinforcement-learning-powered tool aiding an electricity retailer to define the tariff prices it offers, in a bid to optimise its retail strategy. In a competitive market, an energy retailer aims to simultaneously increase the number of contracted customers and its profit margin. We have abstracted the problem of deciding on a tariff price as faced by a retailer, as a semi-Markov decision problem (SMDP). A hierarchical reinforcement learning approach, MaxQ value function decomposition, is applied to solve the SMDP through interactions with the market. To evaluate our trading strategy, we developed a retailer agent (termed AstonTAC) that uses the proposed SMDP framework to act in an open multi-agent simulation environment, the Power Trading Agent Competition (Power TAC). An evaluation and analysis of the 2013 Power TAC finals show that AstonTAC successfully selects sell prices that attract as many customers as necessary to maximise the profit margin. Moreover, during the competition, AstonTAC was the only retailer agent performing well across all retail market settings.
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This paper examines competition between chain-stores and independent retailers in the UK retail opticians' market. We demonstrate that the pricing policy adopted by chain-stores can determine the impact their entry has on independent retailers. Crucially, in this market the chain-store retailers set an identical national price across all local markets. Our results suggest that this pricing strategy lessens the detrimental effect competition from chain-stores has on independent retailers. © 2014 Springer Science+Business Media New York.
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Price knowledge as a construct has been one of the top behavioral pricing themes in the last four decades, especially in the Anglo-American literature. In Germany, scientists have paid relatively little attention to this topic during the last 15 years – with some notable exceptions. Therefore, this study analyzes German consumers' price knowledge and, by doing so, replicates and extends existing international work. After reviewing earlier attempts at assessing the construct, a measure is developed for the price estimation error “PEE”, based on explicit price knowledge stored in long-term memory. Results, including data from about 1,000 consumers on 69 products from a German retail chain, indicate that price knowledge in Germany is relatively low. Based on that observation, implications for the management are discussed.
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Purpose: This paper aims to examine the influence of the culture of the service firm on its interpretation of the role of the brand and on the development and implementation of its brand values. Design/methodology/approach: A grounded theory approach was used. Interviews were conducted with 20 managers within two leading banking firms in Ireland and two leading grocery retailers in Ireland. Findings: The development of the brand, and its role within the firm, is closely related to the firm's culture. The research shows obstacles and opportunities created by the cultural context of firms wishing to disseminate and embed a set of brand values. The paper presents an "involvement model" of brand values implementation and outlines changes required to implement brand values. Research limitations/implications: The study was bound by access to firms, and managers' availability. The authors sought an insight into the relationship between each firm's culture and its brands. They advocate quantitative research to further investigate the findings within these service sectors and to test proposed antecedents (transformational leadership, employee involvement) and outcomes (employee-based brand equity and consumer-based brand equity) of values adoption. Practical implications: The paper identifies aspects of retail and banking cultures which support or detract from brand development. In particular, it presents the learnings from successful brand values implementation in a clan culture, aspects of which are applicable across other cultures. Originality/value: The paper provides valuable insights into the role of the brand within the service firm and the positive and negative influence of context on brand values and their development and implementation. © Emerald Group Publishing Limited.
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Underpinned by the resource-based view (RBV), social exchange theory (SET), and a theory of intrinsic motivation (empowerment), I proposed and tested a multi-level model that simultaneously examines the intermediate linkages or mechanisms through which HPWS impact individual and organizational performance. First and underpinned by RBV, I examined at the unit level, collective human capital and competitive advantage as path-ways through which the use of HPWS influences – branch market performance. Second and-, underpinned by social exchange (perceived organizational support) and intrinsic motivation (psychological empowerment) theories, I examined cross and individual level mechanisms through which experienced HPWS may influence employee performance. I tested the propositions of this study with multisource data obtained from junior and senior customer contact employees, and managers of 37 branches of two banks in Ghana. Results of the Structural Equation Modeling (SEM) analysis revealed that (i) collective human capital partially mediated the relationship between management-rated HPWS and competitive advantage, while competitive advantage completely mediated the influence of human capital on branch market performance. Consequently, management-rated HPWS influenced branch market performance indirectly through collective human capital and competitive advantage. Additionally, results of hierarchical linear modeling (HLM) tests of the cross-level influences on the motivational implications of HPWS revealed that (i) management-rated HPWS influenced experienced HPWS; (ii) perceived organizational support (POS) and psychological empowerment fully mediated the influence of experienced HPWS on service-oriented organizational citizenship behaviour (OCB), and; (iii) service-oriented OCB mediated the influence of psychological empowerment and POS on service quality and task performance. I discuss the theoretical and practical implications of these findings.
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Selection of a power market structure from the available alternatives is an important activity within an overall power sector reform programme. The evaluation criteria for selection are both subjective as well as objective in nature and the selection of alternatives is characterised by their conflicting nature. This study demonstrates a methodology for power market structure selection using the analytic hierarchy process (AHP), a multiple attribute decision-making technique, to model the selection methodology with the active participation of relevant stakeholders in a workshop environment. The methodology is applied to a hypothetical case of a State Electricity Board reform in India.
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Internal marketing has been discussed in the management and academic literature for more than three decades, yet it remains ill defined and poorly operationalized. This article responds to calls to develop a single, clear understanding of the construct, to develop an instrument to measure it, and for empirical evidence of its impact. Existing conceptualization of internal marketing are explored, and a new, multidimensional construct, internal market orientation (IMO), is developed. IMO represents the adaptation of market orientation to the context of employer-employee exchanges in the internal market. The article describes the development of a measure of IMO in a retail services context. Five dimensions of IMO are identified and confirmed. These describe different managerial behaviors associated with internal marketing. The impact of IMO on important organizational factors is also explored. Results indicate positive consequences for customer satisfaction, relative competitive position, staff attitudes, staff retention and staff compliance. © 2005 Sage Publications.
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This article proposes a framework of alternative international marketing strategies, based on the evaluation of intra- and inter-cultural behavioural homogeneity for market segmentation. The framework developed in this study provides a generic structure to behavioural homogeneity, proposing consumer involvement as a construct with unique predictive ability for international marketing strategy decisions. A model-based segmentation process, using structural equation models, is implemented to illustrate the application of the framework.
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Purpose - This article examines the internationalisation of Tesco and extracts the salient lessons learned from this process. Design/methodology/ approach - This research draws on a dataset of 62 in-depth interviews with key executives, sell- and buy-side analysts and corporate advisers at the leading investment banks in the City of London to detail the experiences of Tesco's European expansion. Findings - The case study of Tesco illuminates a number of different dimensions of the company's international experience. It offers some new insights into learning in international distribution environments such as the idea that learning is facilitated by uncertainty or "shocks" in the international retail marketplace; the size of the domestic market may inhibit change and so disable international learning; and learning is not necessarily facilitated by step-by-step incremental approaches to expansion. Research limitations/implications - The paper explores learning from a rather broad perspective, although it is hoped that these parameters can be used to raise a new set of more detailed priorities for future research on international retail learning. It is also recognised that the data gathered for this case study focus on Tesco's European operations. Practical implications - This paper raises a number of interesting issues such as whether the extremities of the business may be a more appropriate place for management to experiment and test new retail innovations, and the extent to which retailers take self-reflection seriously. Originality/value - The paper applies a new theoretical learning perspective to capture the variety of experiences during the internationalisation process, thus addressing a major gap in our understanding of the whole internationalisation process. © Emerald Group Publishing Limited.
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A key purpose of this study is to explore the lessons learned from international retail divestment and market withdrawal experiences. Drawing on 33 in-depth interviews with leading investment banks and key retail executives at Tesco, the study investigates the company's international restructuring and divestment activities in Ireland and France during the mid -1980s and 1990s. It has been demonstrated that, despite the progressive merger and acquisition wave sweeping through the corporate retail landscape recently, international retail divestment is quite widespread. The main conclusion from this study is that Tesco originally did not envisage divestment or de-internationalisation as part of the original internationalisation strategy process in either the acquisition of Three Guys in Ireland or Catteau in France. There was no appreciation from Tesco during their early period of expansion of the fact that exit pressures might arise during the course of market entry. In this regard, the case study provides insights into the relationship between investment and divestment within the context of international retail restructuring. The case evidence also demonstrates the positive impact of the Three Guys and Catteau divestments which helped management to refocus and rejuvenate the company's internationalisation process.
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Purpose - This paper aims to explore the nature of divestment within the context of retailer internationalisation. Design/methodology/approach - It focuses on the activities of the Dutch food multinational retailer Royal Ahold (Ahold). Drawing on 37 in-depth interviews with investment banks and executives, this paper provides a number of insights into Ahold's international retail divestment activities within the context of a broadly successful international investment strategy. Findings - It offers some new insights into the multidimensional nature of international retail divestment construct in terms of the operational as well as more subtle and less visible non-operational international retail divestments. It is concluded from this study that, rather than portraying strategic and opportunistic approaches as binary opposites, a retail firm may have varying degrees of approaches to international retail divestment, and these may not necessarily be isomorphic across different countries. Research limitations/implications - The paper explores international retail divestment from a rather broad perspective, although it is hoped that these parameters can be used to raise a new set of more detailed priorities for future research on international retail divestment. Practical implications - This paper raises a number of interesting issues such as whether retailers initially take divestment seriously and the degree to which this is actually possible during market entry. Originality/value - As called for in the literature, this study examines divestment in the broadest possible fashion, thus addressing a major gap in our understanding of the whole internationalisation process. © Emerald Group Publishing Limited.
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This paper investigates competition between chain-stores and independents in the UK opticians' industry, using the relationship between the number of outlets present in a local market and the market size. Chain-stores are shown to have a significant effect on local market competition. In addition, the empirical approach is extended to allow inferences on the nature and extent of product differentiation. The results are broadly consistent with a model of vertical product differentiation in which chain-stores adopt national pricing strategies. The evidence suggests that the nature of competition between independent retailers depends on whether a chain-store is present.
The development of a market orientation in a turbulent, transitional environment:the case of Ukraine
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This research is concerned with the case of Ukraine where there has been a fundamental change in the economic environment engendered by the transition from a centrally planned to a market economy and the resulting conditions of economic crisis. The way that Ukrainian marketers and consumers are reacting to this environmental change is the principal concern of the research together with the basic linkages between critical environmental elements and strategic marketing decisions. This research analyses the way in which marketing evolves in a turbulent, transitional environment. The study is based on eight case analyses within the retail sector of the Ukrainian market. The process of transition to a free market economy leads a researcher to question the validity of existing theories that have been based on empirical data that has been collected in the stable marketing environment of the West. For this reason an in-depth, theory building methodology is preferred. A number of broad research objectives were set. Firstly, to establish whether the sales - production - marketing stages model of marketing evolution, derived from empirical data collected in stable Western environments, is relevant in the context of the turbulent, transitional environment of Ukraine. Secondly, to establish if, in this turbulent, transitional environment, idiosyncratic approaches to marketing are emerging and thirdly to assess the development of attitudes to marketing, organisation for marketing and the development of marketing strategy in Ukraine. The main conclusions of this thesis are firstly, that the stages model of marketing orientation is not relevant in the context of Ukraine, secondly that there are idiosyncratic approaches to marketing emerging in the turbulent, transitional environment of Ukraine and finally that the above developments have a profound impact on the development of attitudes to marketing, organisation for marketing and the development of marketing strategy in Ukraine.