On the Use of Value Efficiency Analysis and Some Further Developments

The purpose of this paper is to discuss the use of Value Efficiency Analysis (VEA) in efficiency evaluation when preference information is taken into account. Value efficiency analysis is an approach, which applies the ideas developed for Multiple Objective Linear Programming (MOLP) to Data Envelopment Analysis (DEA). Preference information is given through the desirable structure of input- and output-values. The same values can be used for all units under evaluation or the values can be specific for each unit. A decision-maker can specify the input- and output-values subjectively without any support or (s)he can use a multiple criteria support system to assist him/her to find those values on the efficient frontier. The underlying assumption is that the most preferred values maximize the decision-maker's implicitly known value function in a production possibility set or a subset. The purpose of value efficiency analysis is to estimate a need to increase outputs and/or decrease inputs for reaching the indifference contour of the value function at the optimum. In this paper, we briefly review the main ideas in value efficiency analysis and discuss practical aspects related to the use of value efficiency analysis. We also consider some extensions.     

The Climate Policy of the European Union

There is now almost universal agreement that climate change, with potentially disastrous consequences, is happening and that it is contributed to by human activities. This Forum is dedicated to the discussion of various aspects of the European Union's climate policy, e.g. the EU's future role in the global effort to combat global warming, the efficiency of its climate strategy, the design of a new rule for sharing the corresponding burdens fairly among member states, and the interrelationships between the Union's climate policies, on the one hand, and its energy and transport policies, on the other. * and member of the German Advisory Council on Global Change (WBGU). The author wishes to thank Helen Bicknell (Mainz University of Applied Sciences), Oliver Deke (WBGU) and Jürgen Schmid (ISET, Department of Efficient Energy Conversion at the University of Kassel) for their helpful comments. ** This contribution is based on a Jean Monnet Lecture held at Aarhus University on 19 March 2007. The author would like to thank Harri Kalimo for valuable comments.     

The Tobin tax: A tool for allocative or distributional policies?

The Tobin tax idea, developed during the 1970s as a tax on foreign-exchange transactions, has found its way back into the academic and policy debates, since the Copenhagen World Social Summit and the G7 Summit in early 1995 at the latest. At both events, proposals were put forward to impose a tax on international speculative flows. The purpose of the tax is firstly to prevent destabilising foreign-exchange operations while at the same time acting as a source of revenue. Can the Tobin tax actually live up to these expectations?     

Behaviour theory and soft transport policy measures

The aim is to propose a theoretical grounding of soft transport policy measures that aim at promoting voluntary reduction of car use. A general conceptual framework is first presented to clarify how hard and soft transport policy measures impact on car-use reduction. Two different behavioural theories that have been used to account for car use and car-use reduction are then integrated in a self-regulation theory that identifies four stages of the process of voluntarily changing car use: setting a car-use reduction goal, forming a plan for achieving the goal, initiating and executing the plan, and evaluating the outcome of the plan execution. A number of techniques are described that facilitate the different stages of the process of voluntary car-use reduction and which should be used in personalized travel planning programs.     

An analysis of international business-to-business relationships based on the Commitment-Trust theory

Business-to-business relationships are characterized by an exchange between two or more parties. Research has identified several factors that enhance marketing and management in business relationships, mainly with a focus on large manufacturing firms. However, less is known about how service firms develop and maintain international relations during the establishment of a business. To analyze the relevance of the key mediating variable (KMV) model [J. Mark. 58 (1994) 20-38.], which maintains that business-to-business relationship requires commitment and trust, interviews were conducted with five different service entrepreneurs in Sweden, Australia and the UK. The findings demonstrate the importance of commitment, trust, relation termination costs and benefits, shared values and communication between the exchange partners.     

Free trade and protection of the environment: Is the GATT in need of reform?

The GATT negotiations under the Uruguay Round have almost run their course. However, consultations are certain to continue, as critics regard the GATT rules on environmental protection as inadequate. What aspects need to be reformed, and how might the initial reform measures look?     

TOWARDS A DEFINITION OF ACTION RESEARCH: A NOTE AND BIBLIOGRAPHY

Action research simultaneously assists in practical problem-solving and expands scientific knowledge, as well as enhances the competencies of the respective actors, being performed collaboratively in an immediate situation using data feedback in a cyclical process aiming at an increased understanding of a given social situation, primarily applicable for the understanding of change processes in social systems and undertaken within a mutually acceptable ethical framework.     

The Production of Child Care Services in Sweden: Uneven Development and Local Solutions

This article deals with the production and regional development of child care services in Sweden. The production of social services outside the home is discussed in relation to labour market needs and equal opportunities. Staffing, organisation and extension of child care services, as well as restructuring trends are dealt with. The services studied are characterised by local solutions. Reasons for local variations are discussed with special references to labour market factors, political tradition and level of urbanisation. No single factor can explain the variations. Explanations have to be found in the specific local mix of factors.