Voltage dip immunity of equipment and installations : messages to stakeholders

This paper presents the messages to the stakeholders on voltage-dip immunity as extracted by UIE WG2 from CIGRE TB412 [1]. The paper summarizes the main recommendations from this technical brochure in the form of messages towards regulators, standard-settingorganizations, network operators, industrial customers, equipment manufacturers, and power quality monitor manufacturers, researchers

System failures and regional innovation policy

Although many recent contributions have directly analysed the different types of failures that might affect the systems of innovation it is still quite unclear how the system-failures framework can be applied at the regional level. This paper tries to fill this gap and in particular it investigates whether and how the system-failures framework, based on evolutionary and system perspectives, can guide the regional policy-maker intervention. The paper shows that the reach of the regional level of policy-making depends on the characteristics of the regional innovation system in terms of financial autonomy, institutional competences and knowledge base.

DEPAS: A Decentralized Probabilistic Algorithm for Auto-Scaling

The dynamic provisioning of virtualized resources offered by cloud computing infrastructures allows applications deployed in a cloud environment to automatically increase and decrease the amount of used resources. This capability is called auto-scaling and its main purpose is to automatically adjust the scale of the system that is running the application to satisfy the varying workload with minimum resource utilization. The need for auto-scaling is particularly important during workload peaks, in which applications may need to scale up to extremely large-scale systems. Both the research community and the main cloud providers have already developed auto-scaling solutions. However, most research solutions are centralized and not suitable for managing large-scale systems, moreover cloud providers' solutions are bound to the limitations of a specific provider in terms of resource prices, availability, reliability, and connectivity. In this paper we propose DEPAS, a decentralized probabilistic auto-scaling algorithm integrated into a P2P architecture that is cloud provider independent, thus allowing the auto-scaling of services over multiple cloud infrastructures at the same time. Our simulations, which are based on real service traces, show that our approach is capable of: (i) keeping the overall utilization of all the instantiated cloud resources in a target range, (ii) maintaining service response times close to the ones obtained using optimal centralized auto-scaling approaches.Comment: Submitted to Springer Computin

Planning Network UK (PNUK): a manifesto for planning and land reform

The Manifesto is an analysis of the shortcomings of the current planning and land policy system in the UK with a number of policy proposals for refor

Bridge to Somewhere: The Value of Auckland's Northern Motorway Extensions

We estimate benefits that have resulted from extensions to Auckland's Northern Motorway since 1991. Population and employment rose substantially in locations near the new exits and to the north of the motorway extension, relative to developments elsewhere on the North Shore and in the broader Auckland Region. Land values also rose strongly near the new exits. Our approach to measuring net benefit uses changes in land values (after controlling for other factors) as a revealed preference indicator of value. We compare the estimated benefits with costs of the project to gain a measure of the project's benefit:cost ratio (B:C). Our results indicate that the gross benefit of the extensions from Tristram Avenue to Orewa is at least $2.3 billion (2004 NZ$s) compared with the estimated extension costs (discounted to 2004) of $366 million, giving a B:C ratio of at least 6.3, which exceeds the standard ratio of 4.0 used to approve roading projects in New Zealand. Our estimates take account of the possibility of diminution in value occurring elsewhere near the existing Northern Motorway network, but not in other areas of Auckland or elsewhere in the country. Conversely, they do not include any benefits that may be impounded in commercial property values in the CBD (and elsewhere) arising from increased accessibility to an enlarged labour pool.infrastructure; transport investment; benefit:cost; Auckland motorway

Devolution and the New Zealand Resource Management Act

Many past and potential New Zealand reforms involve significant devolution, i.e. the transfer of authority to make decisions on behalf of society from a higher to a lower level of government. In particular the Resource Management Act (RMA), the health and education reforms, and decisions about the institutions for addressing Maori issues have led to significant devolution of authority. Employment policy and social welfare are areas where devolution is an important policy option. The role and function of local government also is inherently an issue of the appropriate level of devolution. Many of these reforms have now been in place for a number of years, so it is appropriate to review our experience of devolution, identify the successes, and attempt to address the problems that have arisen. Two papers address issues of when and how we should devolve authority from central to local government. This paper looks at devolution both from a general theoretical standpoint and from the perspective of the New Zealand Resource Management Act 1991 (RMA), with residential land use as an illustration. Although the RMA is discussed throughout both papers, the framework developed applies to any area of policy for which devolution decisions are being considered. The second paper, Treasury Working Paper 98/7a, applies the framework to the optimal pattern of devolution for policies relating to kiwi protection.

Will political liberalisation bring about financial development?

This paper studies the e¤ect of political liberalisation on financial development in two steps. First, the paper examines whether political liberalisation in terms of institutional improvement promotes financial development, using a panel dataset of 90 developed and developing countries over 1960-99. The empirical evidence reveals a positive effect on financial development at least in the short-run, particularly for lower-income countries, ethnically divided countries and French legal origin countries. In the second part of the paper, a before-after event study approach is used to explore the impact of democratic transitions on financial development. It indicates that a democratic transformation is typically followed by an increase in financial development.Political liberalisation; Financial development.

Incorporating environmental impacts into value added from organic and conventional farming

We aim to improve the policy relevance of the aggregate welfare indicators regarding the economic and environmental features of farming practices. First, an analytical framework for measurement of environmentally adjusted net national product for agricultural sector is provided. Second, shadow pricing of direct disutility of environmental deterioration is illustrated with implications of the Finnish water protection policy measures restricting the use of manure on conventional and organic livestock farms during the period 1994-2002. Our simulated shadow prices per cubic meter manure are quite considerable reflecting the potentially high opportunity costs in terms of value added forgone if the only option to comply with regulation is to cut output. In practice, the organic farms seem to comply well with current regulation, and the environmentally harmful contibution of conventional farms to welfare is relatively small

Measuring Concentration in Data with an Exogenous Order

Concentration measures order the statistical units under observation according to their market share. However, there are situations where an order according to an exogenous variable is more appropriate or even required. The present article introduces a generalized definition of market concentration and defines a corresponding concentration measure. It is shown that this generalized concept of market concentration satisfies the common axioms of (classical) concentration measures. In an application example, the proposed approach is compared with classical concentration measures; the data are transfer spendings of German Bundesliga soccer teams, the ``obvious'' exogenous order of the teams is the league ranking

Environmental management in Bulgarian agriculture

This paper presents a new framework for analysis and improvement of environmental management based on the achievements of the New Institutional and Transaction Costs Economics. Following that new framework we first, identify the major environmental problems and risks in Bulgarian agriculture. Next, we access efficiency of market, private and public modes of environmental management employed in the sector. And finally, we give prospects and major challenges of environmental management in conditions of EU Common Agricultural Policy implementation. Our analysis shows that post-communist transition of Bulgarian agriculture has changed the state of the environment and brought some new challenges such as: degradation and contamination of farmland, pollution of surface and ground waters, loss of biodiversity, significant greenhouse gas emissions etc. Badly defined and enforced environmental rights, prolonged process of privatization of agrarian resources, carrying out farming in structures not motivating in long-term investment, low appropriability of certain environmental rights and high uncertainty and assets specificity of environment related transactions, all these factors have been responsible for failure of market and private modes of environmental management. The strong needs for a public intervention have not been met by an effective government, community, international assistance etc. intervention. Consequently agrarian sustainability has been severely compromised. The assessment of likely impact of EU CAP implementation under “Bulgarian” conditions indicates that the main beneficiary of various new support measures will be the biggest operators. Income, technological and environmental discrepancy between different farms, sub-sectors and regions will be further enhanced. Our analysis has been also supported by field survey data from different type dairy farms from two major milk producing regions of the country. We have found out that a great number of farms have no sufficient capacity for adaptation to new EU requirements for the dairy sector. The bulk of milk producers expect no positive impact of CAP measures on their income, volume and technology of production, investment level, product quality, access to public programs, improvement of environmental care, improvement of animal welfare, development of infrastructure, possibilities for new income generation, and social status of farm households.environmental management; market, private and public governance; agrarian transition; CAP implementation; governing agrarian sustainability; comparative institutional analysis; transaction costs; Bulgaria