9,523 research outputs found

    Natural resources conservation management and strategies in agriculture

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    This paper suggests a holistic framework for assessment and improvement of management strategies for conservation of natural resources in agriculture. First, it incorporates an interdisciplinary approach (combining Economics, Organization, Law, Sociology, Ecology, Technology, Behavioral and Political Sciences) and presents a modern framework for assessing environmental management and strategies in agriculture including: specification of specific “managerial needs” and spectrum of feasible governance modes (institutional environment; private, collective, market, and public modes) of natural resources conservation at different level of decision-making (individual, farm, eco-system, local, regional, national, transnational, and global); specification of critical socio-economic, natural, technological, behavioral etc. factors of managerial choice, and feasible spectrum of (private, collective, public, international) managerial strategies; assessment of efficiency of diverse management strategies in terms of their potential to protect diverse eco-rights and investments, assure socially desirable level of environmental protection and improvement, minimize overall (implementing, third-party, transaction etc.) costs, coordinate and stimulate eco-activities, meet preferences and reconcile conflicts of individuals etc. Second, it presents evolution and assesses the efficiency of diverse management forms and strategies for conservation of natural resources in Bulgarian agriculture during post-communist transformation and EU integration (institutional, market, private, and public), and evaluates the impacts of EU CAP on environmental sustainability of farms of different juridical type, size, specialization and location. Finally, it suggests recommendations for improvement of public policies, strategies and modes of intervention, and private and collective strategies and actions for effective environmental protection

    Striking a Balance: Centralised and Decentralised Decisions in Government

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    This paper identifies factors to be looked at when considering the extent to which decisions within government should be centralised or decentralised. In practice, the solution is almost always likely to involve a balance between centralised and decentralised decision-making. Nevertheless there are a number of common factors that are generally applicable to questions of centralisation and decentralisation. This paper identifies those factors in order to provide some guidance for decisions regarding the location of decision rights. Rather than being prescriptive, the paper simply presents the relevant issues for consideration. Centralisation (or decentralisation) is a complex and multi-dimensional issue. It is partly for this reason that the paper does not suggest any specific solutions. The solution in any particular case will involve tradeoffs between the factors identified in the paper as well as value judgements regarding the ranking of the various factors. In determining the appropriate balance between centralised and decentralised decisions, various factors are in tension. Centralisation can help ensure uniform and consistent standards, minimise inequalities, avoid the duplication of services, allow for the achievement of economies of scale, and increase coherence and coordination. Decentralisation, on the other hand, can help enhance local autonomy and empowerment, encourage customisation and innovation, and increase participation. Economic, social, managerial and constitutional perspectives offer a number of theoretical frameworks that are useful in considering issues of centralisation/ decentralisation. This paper draws together ideas from across these perspectives. It concludes that the solution is likely to be characterised by a “tight/loose” pattern whereby there is “tight” or centralised control over the major objectives that is then joined by “loose” or decentralised discretion over the ways in which those objectives are achieved to varying degrees.Centralisation; decentralisation; decision rights

    A survey of self organisation in future cellular networks

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    This article surveys the literature over the period of the last decade on the emerging field of self organisation as applied to wireless cellular communication networks. Self organisation has been extensively studied and applied in adhoc networks, wireless sensor networks and autonomic computer networks; however in the context of wireless cellular networks, this is the first attempt to put in perspective the various efforts in form of a tutorial/survey. We provide a comprehensive survey of the existing literature, projects and standards in self organising cellular networks. Additionally, we also aim to present a clear understanding of this active research area, identifying a clear taxonomy and guidelines for design of self organising mechanisms. We compare strength and weakness of existing solutions and highlight the key research areas for further development. This paper serves as a guide and a starting point for anyone willing to delve into research on self organisation in wireless cellular communication networks

    A feedback-based decentralised coordination model for distributed open real-time systems

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    Moving towards autonomous operation and management of increasingly complex open distributed real-time systems poses very significant challenges. This is particularly true when reaction to events must be done in a timely and predictable manner while guaranteeing Quality of Service (QoS) constraints imposed by users, the environment, or applications. In these scenarios, the system should be able to maintain a global feasible QoS level while allowing individual nodes to autonomously adapt under different constraints of resource availability and input quality. This paper shows how decentralised coordination of a group of autonomous interdependent nodes can emerge with little communication, based on the robust self-organising principles of feedback. Positive feedback is used to reinforce the selection of the new desired global service solution, while negative feedback discourages nodes to act in a greedy fashion as this adversely impacts on the provided service levels at neighbouring nodes. The proposed protocol is general enough to be used in a wide range of scenarios characterised by a high degree of openness and dynamism where coordination tasks need to be time dependent. As the reported results demonstrate, it requires less messages to be exchanged and it is faster to achieve a globally acceptable near-optimal solution than other available approaches

    Applications of agent architectures to decision support in distributed simulation and training systems

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    This work develops the approach and presents the results of a new model for applying intelligent agents to complex distributed interactive simulation for command and control. In the framework of tactical command, control communications, computers and intelligence (C4I), software agents provide a novel approach for efficient decision support and distributed interactive mission training. An agent-based architecture for decision support is designed, implemented and is applied in a distributed interactive simulation to significantly enhance the command and control training during simulated exercises. The architecture is based on monitoring, evaluation, and advice agents, which cooperate to provide alternatives to the dec ision-maker in a time and resource constrained environment. The architecture is implemented and tested within the context of an AWACS Weapons Director trainer tool. The foundation of the work required a wide range of preliminary research topics to be covered, including real-time systems, resource allocation, agent-based computing, decision support systems, and distributed interactive simulations. The major contribution of our work is the construction of a multi-agent architecture and its application to an operational decision support system for command and control interactive simulation. The architectural design for the multi-agent system was drafted in the first stage of the work. In the next stage rules of engagement, objective and cost functions were determined in the AWACS (Airforce command and control) decision support domain. Finally, the multi-agent architecture was implemented and evaluated inside a distributed interactive simulation test-bed for AWACS Vv\u27Ds. The evaluation process combined individual and team use of the decision support system to improve the performance results of WD trainees. The decision support system is designed and implemented a distributed architecture for performance-oriented management of software agents. The approach provides new agent interaction protocols and utilizes agent performance monitoring and remote synchronization mechanisms. This multi-agent architecture enables direct and indirect agent communication as well as dynamic hierarchical agent coordination. Inter-agent communications use predefined interfaces, protocols, and open channels with specified ontology and semantics. Services can be requested and responses with results received over such communication modes. Both traditional (functional) parameters and nonfunctional (e.g. QoS, deadline, etc.) requirements and captured in service requests

    Authority in the Context of Distributed Knowledge

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    The notion of distributed knowledge is increasingly often invoked in discussions of economic organization. In particular, the claim that authority is inefficient as a means of coordination in the context of distributed knowledge has become widespread. However, very little analysis has been dedicated to the relation between economic organization and distributed knowledge. In this paper, we concentrate on the role of authority as a coordination mechanism under conditions of distributed knowledge, and also briefly discuss other issues of economic organization. We clarify the meanings of authority and distributed knowledge, and criticize the above claim by arguing that authority may be a superior mechanism of coordination under distributed knowledge. We also discuss how distributed knowledge influences the boundaries of firms. Our arguments rely on insights in problem-solving and on ideas from organizational economics.Distributed knowledge, existence of authority, problem-solving, the boundaries of the firm

    Overlay networks for smart grids

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    Налогообложение в реформах управления государственными финансами

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    Общепринятые теоретические подходы к реформированию государственной экономики, как правило, вполне пригодны для целей управления изменениями налоговых систем и их составляющих. В частности, в налоговом администрировании особенно проблемным представляется всемерное обеспечение реализации принципов горизонтальной справедливости, а также внедрение подходов, при которых для налогоплательщиков выполнение обязательств по внесению платежей становится более выгодным, чем уклонение от их уплаты. Во многих развивающихся странах неспособность правительства в связи с политическими причинами реализовать задекларированные программы часто является основным препятствием социально-экономического развития. Имплементация многих инициатив по реформированию не всегда успешна из-за отсутствия четких стратегий в государственной политике структурных изменений. Широко известны модели применения новых подходов в системах управления государственными финансами, в частности, при формировании и движении доходов, расходов и долгов. При стандартном анализе налоговых систем часто игнорируется результативность налогового администрирования, связанная с трансакционными издержками и влиянием теневой экономики: речь идет о затратах плательщиков обязательных платежей и сборов и налоговых органов, а также об иных, не подлежащих количественной оценке составляющих налогообложения, включая мотивацию нарушений законодательства. Большое значение имеет налоговое поведение, предотвращение оппортунизма, регулирование способов публичного раскрытия информации, применение системных инструментов взимания налогов. При разработке детальных планов реформирования необходимо стремиться к максимальной эффективности непрерывных циклов движения финансовых ресурсов в доходах и расходах, а также учитывать угрозы нарушения бюджетных процессов, при этом одним из главных должен быть вопрос выбора целей и приоритетов. Известны случаи, когда донорское сообщество и международные организации настаивали на необходимости внедрения определенных образцов «лучшей практики», особенно если реформирование осуществлялось при их финансовой поддержке. Отдавая должное многим позитивным примерам, следует иметь в виду, что для налоговой системы каждой страны характерны специфические черты, поэтому эффективность ее реформирования во многом будет зависеть от учета местных особенностей. В целом задача управления изменениями в системах государственных финансов усложняется внешними и внутренними факторами неопределенности, поэтому при любых обстоятельствах необходимо обеспечивать непрерывность бюджетного процесса и исполнение государством своих конституционных обязательств. Регуляторная функция экономики должна быть направлена на реализацию целей устойчивого экономического развития, соответственно, в рамках налоговой системы, как стратегического элемента госрегулирования, должны работать эффективные механизмы налогов, сборов, а также льгот и преференций во взаимосвязи с расходными статьями, трансфертами и субсидиями.Generally, standard theoretical approaches to reforming national economy are quite usable for goals of managing changes of taxation systems and their components. In particular, of most problematic issue for tax administration is all-round provision of implementing principles of horizontal justice, as well as introducing the approaches which allow the execution of commitments on making payments by taxpayers to be more profitable than evasion. In many developing countries, due to political reasons the government’s inability to implement their declared programs is frequently the main obstacle to improving the socio-economic progress. Implementation of many reform initiatives is not always successful due to absence of clear strategies in governmental policy of structural transformations. There are wide known models of applying new approaches in systems of public finance management (PFM), particularly, in regard of formation and dynamics of revenues, expenses, debts. The standard analysis of tax systems ignores, as a rule, the efficiency of tax administration connected with transaction costs and shadow economy influence: the issue is about the expenses, on one hand, for payers of obligatory payments and levies, and on the other hand, for taxation authorities, as well as about the other taxation components, non-subject to quantitative assessment, including motivation of breaching legislation. Of great significance is tax behavior, prevention of opportunism, regulation of not only tax rates and taxation basis but also of ways of public information accessibility, application of systemic toolkits of tax collection. While developing detailed plans of reforming, it is necessary to strain after maximum efficiency of continuous cycles of financial resource movements in terms of revenues and expenditures, as well as to consider challenges for interruption of the budget processes. At that, one of the main issue is, obviously, selection of targets and priorities. There are known cases, when the donor community and international organizations insist on “the best practices” introduction, especially if the reforming is carried out with their financial support. In justice to numerous positive examples, it should be borne in mind that each taxation system of every country is characterized by their specific traits, so the efficiency of its reforming will at large depend on considering local features. On the whole, the task of managing changes in the public finance systems is getting more complicated in the context of external and internal factors of uncertainty. Thus, in any circumstances it is vital to ensure continuity of the budget process, as well as execution by the state of its constitutional obligations. The regulatory potential of economy should be focused on implementing sustainable economic development goals. Accordingly, in the taxation system framework, as a strategic tool for governmental regulation, there must function efficient mechanisms of taxes and levies, as well as benefits and preferences in coordination with expenditure items, transfers and subsidies
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