Land use change, biomass production and HANPP: The case of Hungary 1961-2005

This paper presents an empirical analysis of the human appropriation of aboveground net primary production (aHANPP) in Hungary in the years 1961-2005. In this period aboveground HANPP dropped from 67% to 49% of the potential vegetation's NPP. The trajectory was not smooth, but aboveground HANPP fluctuated with changes in factors affecting agricultural production conditions. Both aboveground net primary production (aNPP) of the prevailing vegetation and harvested aNPP increased during the socialist regime, dropped when the system collapsed and has shown considerable fluctuations since. We discuss the development of aboveground HANPP and the Hungarian land use system in the context of socioeconomic changes during three distinct phases: (1) industrialisation of agriculture (1961-1989), (2) regime collapse (1989-1993) and (3) restructuring of a new economy (1993-2005). Within these periods, different driving factors influenced aboveground HANPP and its constituents. In the phase of industrialisation, mechanisation and agrochemical inputs reduced aHANPP while harvested amounts of biomass increased progressively. In the second phase, political and economic circumstances devastated production conditions resulting in a decline of productivity of actual vegetation and a temporary rise in aboveground HANPP. During the last twelve years, industrialisation patterns of agricultural production recovered. The restructuring of inefficient agricultural production systems raised harvest at moderate levels of agricultural inputs, while climatic conditions intimidated high yield and harvest security. The paper discusses the effect of different economic and political regimes and of major socioeconomic restructuring on the development of the land use system, biomass production and aboveground HANPP.     

Das neue Energiewirtschaftsgesetz—Regelungen für einen erweiterten Zielkatalog

Mehr als ein Jahr nach dem EU-rechtlich vorgegebenen Endtermin wurde im Juli 2005 das neue Energiewirtschaftsgesetz verabschiedet. Von welchen Zielen geht dieses Gesetz aus? Wie lauten seine wichtigsten Neuregelungen? Und welche Auswirkungen sind von ihnen zu erwarten?     

Protection of diffuse interests in the EEC and the perspective of “progressively establishing” an internal market

Present Community action and law is characterised by a conflict between market integration, protection of diffuse interests, and the rule-of-law principle. Community law first concentrated on negative integration which created and protected traders' freedom of market access and workers' freedom of circulation. By Court practice, these freedoms were developed into a basic right of EEC citizens to move freely within the EEC and to satisfy their demands wherever they wanted. Positive integration tried to establish common protective standards in matters relating to the environment, consumer protection, health care, and equal rights. The Single Act, ratified in 1987, amended the EEC Treaty by the objective of completing the internal market by the end of 1992. These provisions can only to a limited extent be said to have a direct effect. Positive integration has been reinforced by provisions on environmental and health policy. In his concluding remarks, the author insists on the need for an overall expansion of protective standards within the EEC in spite of tendencies towards a mere free trade approach.

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Zusammenfassung Die gegenwärtigen Aktivitäten der Gemeinschaft sowie das europäische Wirtschaftsrecht sind von einer komplexen Spannungslage zwischen Marktintegration, Schutz diffuser Interessen (Umweltschutz, Verbraucherschutz usw.) und rechtsstaatlich-demokratischen Anforderungen beherrscht. Zunächst konzentrierte sich das Gemeinschaftsrecht auf Maßnahmen der sog. Negativintegration, um dem Marktbürger Zugang zu dem Gemeinsamen Markt und Arbeitnehmern Zirkulationsfreiheit zu gewährleisten. Die Praxis des Gerichtshofes der EG hat diese Marktfreiheiten zu grundrechtsähnlichen Gewährleistungen aller Bürger i.S. einer Entscheidungs- und Aufenthaltsfreiheit ausgebaut. Die Positivintegration versuchte, gemeinsame Schutzstandards in den Bereichen Gleichbehandlung, Umwelt, Gesundheit und Verbraucherschutz durch sekundäres Gemeinschaftsrecht zu schaffen. Die 1987 ratifizierte Einheitliche Europäische Akte hat das Ziel der Gemeinschaft festgeschrieben, bis Ende 1992 den Binnenmarkt als Raum ohne Binnengrenzen zu verwirklichen.Die unmittelbare Wirkung dieser Vorschriften bleibt allerdings fraglich. Die Positivintegration ist durch Kompetenzen im Bereich Umwelt- und Gesundheitsschutz abgesichert worden. In einer Schlußbetrachtung wird auf die Notwendigkeit EG-einheitlicher Schutzstandards ungeachtet des Vorherrschens von Freihandelsvorstellungen hingewiesen.

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Norbert Reich is Professor of Civil Law, Commercial Law and European Legal Policy at the University of Bremen and Managing Director of the Centre for European Legal Policy, Universitätsallee GW 1, D-2800 Bremen 33, FRG.The article is based on a speech at the University of Helsinki on May 20, 1988, and was previously published in the Finnish legal journal Juridiska Föreningens Tidskrift. The author thanks his Finnish colleague Thomas Wilhelmsson, University of Helsinki, for stimulating discussions of previous drafts and for allowing publication in JCP.     

A Comment on Yin, Xiangkang and Yew-Kwang Ng: Quantity Precommitment and Bertrand Competition Yield Cournot Outcomes: A Case with Product Differentiation

This comment points out a gap in the proof of Theorem 2 contained in the paper by Yin and Ng. It is shown that the price reaction functions in their modelling approach are not continuous for all capacity subgames, contradicting the claim of Lemma 1. Possible remedies are suggested.