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Registros recuperados: 44
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A comparison between South African agricultural exports to the European union and those of other selected southern hemisphere countries AgEcon
Adriaen, D.; Kleynhans, Theo E.; Tollens, Eric.
Primary Eurostat data of EU imports of agricultural products from selected southern hemisphere countries - namely, South Africa, Argentina, Chile, Australia and New Zealand - was used to compare the exports from those countries to the EU for the period 1988 to 2000. The study starts with a general overview of the total and agricultural export performance of these selected countries in a global context and their specialization indexes for food. This is followed by a comparison of the total value, total mass and value per tonne of agricultural exports to the EU and of their exploitation of seasonal differences with the northern hemisphere in terms of relative emphasis on particular product groups and value/mass ratios of their major products. Comparison is...
Tipo: Journal Article Palavras-chave: International Relations/Trade.
Ano: 2004 URL: http://purl.umn.edu/9486
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AGROBIOTECHNOLOGY IN DEVELOPING COUNTRIES: NORTH-SOUTH PARTNERSHIPS ARE A KEY AgEcon
Tollens, Eric; Demont, Matty; Swennen, Rony.
Agricultural production almost needs to double in the 21st century, putting tremendous pressure on agricultural resources. Most food production increases must come from more agricultural intensification in the South. This advances the need for a new green revolution: higher productivity and at the same time less pressure on the environment. Agrobiotechnology can contribute to this double green revolution. Biotechnology innovations are often scale neutral and are therefore suitable for small farmers. Moreover, genetic modification offers especially advantages for crops domesticated since a very long time and which are therefore quite different from their wild relatives. However, agrobiotechnology also engenders risks and dangers, outlined in the...
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2003 URL: http://purl.umn.edu/31837
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Are EU spatial ex ante coexistence regulations proportional? AgEcon
Demont, Matty; Daems, W.; Dillen, Koen; Mathijs, Erik; Sausse, C.; Tollens, Eric.
The EU is currently struggling to implement coherent coexistence regulations on genetically modified (GM) and non-GM crops in all member states. While it stresses that any approach needs to be “proportionate to the aim of achieving coexistence”, very few studies have actually attempted to assess whether the proposed spatial ex ante coexistence regulations (SEACERs) satisfy this proportionality condition. In this article, we define proportionality as a functional relationship which is weakly increasing in the incentives for coexistence. We propose a spatial framework based on an existing landscape and introduce the new concept of shadow factor as a measure for the opportunity costs induced by SEACERs. This enables comparing the proportionality of (i) rigid...
Tipo: Conference Paper or Presentation Palavras-chave: Policy analysis; GIS; Shadow factor; Agricultural and Food Policy; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/44191
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BEDRIJFSECONOMISCHE IMPACT VAN BIOTECHNOLOGIE IN DE BELGISCHE SUIKERBIETENTEELT AgEcon
de Venter, Katrien; Demont, Matty; Tollens, Eric.
Through Monte Carlo simulation techniques, all possible scenarios are analyzed of the impact of the potential adoption of genetically modified herbicide tolerant sugar beets on the economics of Belgian sugar beet growers. The most likely gain for the average Belgian sugar beet grower amounts to €125 /ha. Assuming an adoption rate of 75%, this transates into a total benefit foregone of €9 million for Belgian agriculture in the agricultural season 1998-1999. Three quarters of this benefit are absorbed by the farmers, while one quarter, i.e. €3 million, is extracted by the gene developers and seed suppliers. This refutes the argument of a seed industry extracting all benefits from biotechnology innovations.
Tipo: Working or Discussion Paper Palavras-chave: Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/31847
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BIODIVERSITY VERSUS TRANSGENIC SUGAR BEET: THE ONE EURO QUESTION AgEcon
Demont, Matty; Wesseler, Justus; Tollens, Eric.
The decision of whether to release transgenic crops in the EU is one subject to flexibility, uncertainty, and irreversibility. We analyse the case of herbicide tolerant sugar beet and reassess whether the 1998 de facto moratorium of the EU on transgenic crops for sugar beet was correct from a cost-benefit perspective using a real option approach. We show that the decision was correct, if households value possible annual irreversible costs of herbicide tolerant sugar beet with about 1 E or more on average. On the other hand, the total net private reversible benefits forgone if the de facto moratorium is not lifted are in the order of 169 Mio E per year.
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/31859
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Biodiversity versus Transgenic Sugar Beet: The One Euro Question AgEcon
Demont, Matty; Wesseler, Justus; Tollens, Eric.
The decision of whether to release transgenic crops in the EU is one subject to flexibility, uncertainty, and irreversibility. We analyse the case of herbicide tolerant sugar beet and reassess whether the 1998 de facto moratorium of the EU on transgenic crops for sugar beet was correct from a cost-benefit perspective using a real option approach. We show that the decision was correct, if households value possible annual irreversible costs of herbicide tolerant sugar beet with about 1 € or more on average. On the other hand, the total net private reversible benefits forgone if the de facto moratorium is not lifted are in the order of 169 Mio € per year.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2003 URL: http://purl.umn.edu/25831
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BIOLOGISCHE, BIOTECHNOLOGISCHE EN GANGBARE LANDBOUW: EEN VERGELIJKENDE ECONOMISCHE STUDIE AgEcon
Demont, Matty; Tollens, Eric.
Crop protection is a part of the agricultural production system. In Europe during the past century, this system has been subject to innovation, stemming from the second agricultural revolution of the Modern Time. Today we are on the crossroad of three alternative agricultural systems. Conventional agriculture is the product of the second agricultural revolution. So far, biotechnological agriculture seems to continue these trends. Organic agriculture on the other hand is a reaction on the paradigm of the second agricultural revolution, especially regarding the negative environmental externalities engendered by this revolution. Today, conventional agriculture is under pressure. Two alternatives have emerged: organic and biotechnological agriculture. Which...
Tipo: Working or Discussion Paper Palavras-chave: Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2000 URL: http://purl.umn.edu/31839
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BIOTECH IN DEVELOPING COUNTRIES: FROM A GENE REVOLUTION TO A DOUBLY GREEN REVOLUTION? AgEcon
Tollens, Eric; Demont, Matty.
Tipo: Working or Discussion Paper Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/31849
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BIOTECHNOLOGY IN THE SOUTH: ABSOLUTE NECESSITY OR ILLUSION? AgEcon
Tollens, Eric.
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/31827
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BOSERUP VERSUS MALTHUS REVISITED: EVOLUTION OF FARMS IN NORTHERN COTE D'IVOIRE AgEcon
Demont, Matty; Jouve, Philippe; Stessens, Johan; Tollens, Eric.
The literature on the evolution of farming systems in West Africa shows a large diversity of general theories on rural development. The purpose of this study is to revisit the theses of Malthus and Boserup and empirically test them on a case study of Northern Cote d’Ivoire. We have at our disposal a database spread over three agricultural seasons (1995-1998) and four villages. These villages differ strongly regarding their population density and historical genesis. The comparison between these villages permits us to track down their stage in the evolution of farming systems and to identify population pressure as a key factor of the evolution of farming systems and to identify population pressure as a key factor of the evolution process of farms. Our...
Tipo: Working or Discussion Paper Palavras-chave: International Development; Production Economics.
Ano: 2004 URL: http://purl.umn.edu/31836
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BOSERUP VERSUS MALTHUS REVISITES: EVOLUTION DES EXPLOITATIONS AGRICOLES DANS LE NORD DE LA COTE D'IVOIRE AgEcon
Demont, Matty; Jouve, Philippe; Stessens, Johan; Tollens, Eric.
The literature on the evolution of farming systems in West Africa shows a large diversity of general theories on rural development. The purpose of this study is to revisit the theses of Malthus and Boserup and empirically test them on a case study of Northern Cote d’'Ivoire. We have at our disposal a database spread over three agricultural seasons (1995-1998) and three villages. These villages differ strongly regarding their population density and historical genesis. The comparison between these villages permitted to track down their stage in the evolution of farming systems and to identify population pressure as a key factor of the evolution of farming systems and to identify population pressure as a key factor of the evolution process of farms. Our...
Tipo: Working or Discussion Paper Palavras-chave: Community/Rural/Urban Development.
Ano: 2004 URL: http://purl.umn.edu/31838
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CURRENT SITUATION OF FOOD SECURITY IN THE D.R. CONGO: DIAGNOSTIC AND PERSPECTIVES AgEcon
Tollens, Eric.
Tipo: Working or Discussion Paper Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 2003 URL: http://purl.umn.edu/31853
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ECONOMIC IMPACT OF AGRICULTURAL BIOTECHNOLOGY IN THE EU: THE EUWAB PROJECT AgEcon
Demont, Matty; Tollens, Eric.
Since 1995, genetically modified organisms (GMOs) have been introduced commercially into US agriculture. These innovations are developed and commercialised by a handful of vertically coordinated “"life science”" firms who have fundamentally altered the structure of the seed industry. Enforcement of intellectual property rights (IPRs) for biological innovations has been the major incentive for a concentration tendency in the upstream sector. On the one hand, this monopolisation may increase long-run social welfare through an increased rate of investment in R&D. On the other hand, due to their monopoly power, these firms are capable of charging a “"monopoly rent”", extracting a part of the total social welfare. A popular argument used by the...
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2001 URL: http://purl.umn.edu/31857
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Economics of spatial coexistence of genetically modified and conventional crops: Oilseed rape in Central France AgEcon
Demont, Matty; Daems, W.; Dillen, Koen; Mathijs, Erik; Sausse, C.; Tollens, Eric.
Europe is currently struggling to implement coherent coexistence regulations on genetically modified (GM) and non-GM crops in all EU Member States. We conduct simulations with the software ArcView® on a GIS dataset of a hypothetical case of GM herbicide tolerant oilseed rape cultivation in Central France. Our findings show that rigid coexistence rules, such as large distance requirements, may impose a severe burden on GM crop production in Europe. These rules are not proportional to the farmers’ basic incentives for coexistence and hence not consistent with the objectives of the European Commission. More alarming, we show that in densely planted areas a domino-effect may occur. This effect raises coexistence costs and even adds to the non-proportionality...
Tipo: Conference Paper or Presentation Palavras-chave: Regulation; GIS modelling; Domino-effect; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/43650
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ESTIMATION OF PRODUCTION OF CASSAVA IN BANDUNDU (1987-1988) AND BAS CONGO (1988-1989) REGIONS, AS COMPARED TO OFFICIAL R.D. CONGO STATISTICS AgEcon
Tollens, Eric.
Tipo: Working or Discussion Paper Palavras-chave: Production Economics.
Ano: 2002 URL: http://purl.umn.edu/31831
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ETUDE COMPARATIVE DES SYSTEMES DE COMMERCIALISATION D'IGNAME EN COTE-D'IVOIRE, AU BENIN ET AU NIGERIA AgEcon
Demont, Matty; Houedjoklounon, Alexandre; Hounhouigan, Joseph; Mahyao, Adolphe; Orkwor, Gabriel; Stessens, Johan; Tollens, Eric; Toure, Moustapha.
The present study which started in 1999 is framed in the INCOYAM project. Marketing systems of yam are analyzed in three West- African countries: Cote d'Ivoire, Benin and Nigeria. Surveys have been carried out on urban (wholesales and retailers) and rural (collectors) traders. Cities and production regions have been selected in function of their socio-economic characteristics. As a result, in the three countries data has been collected in an important consumption pole, a commercial redistribution pole and a production pole. The degree of precision of the data varies from one country to another due to asymmetric financing. This situation did not allow establishing an equilibrated comparison of yam marketing systems. The three countries commercialize...
Tipo: Working or Discussion Paper Palavras-chave: Industrial Organization; Marketing.
Ano: 2003 URL: http://purl.umn.edu/31861
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EVOLUTION DES SYSTEMES AGRAIRES DANS LE NORD DE LA COTE D'IVOIRE: LES DEBATS, BOSERUP VERSUS MALTHUS, ET COMPETITION VERSUS COMPLEMENTARITE, REVISITES AgEcon
Demont, Matty; Jouve, Philippe; Stessens, Johan; Tollens, Eric.
A socio-economic analysis of the farms in four villages of the Dikodougou region (North of Cote d’'Ivoire) reviews two debates about the evolution of the farming systems in sub-Saharan Africa. Firstly, the two opposing views in the controversy “"Boserup versus Malthus"” are complements rather than opposites. In a first phase, demographic pressure causes Malthusian mechanisms (proliferation of weeds, deterioration of the bio-physical environment, of global fertility and of the profitability of the traditional production system) generating favourable conditions for the adoption of ox-drawn farming. In a second phase, the alternation of the production system illustrates well the Boserupian response to a situation where the traditional system is not adapted...
Tipo: Working or Discussion Paper Palavras-chave: Community/Rural/Urban Development; Production Economics.
Ano: 1999 URL: http://purl.umn.edu/31833
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EX-ANTE EVALUATION OF THE ECONOMIC IMPACT OF AGRICULTURAL BIOTECHNOLOGY IN THE EUROPEAN UNION: THE CASE OF TRANSGENIC SUGARBEETS AgEcon
Demont, Matty; Tollens, Eric.
We develop a theoretical welfare framework, which explicitly recognizes that research protected by intellectual property rights generates monopoly profits. The result is a simulation model, shaped to the European sugar sector, and enabling to assess the size and distribution of the benefits of transgenic sugarbeet adoption in the European Union and the Rest of the World.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2001 URL: http://purl.umn.edu/20631
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FAIR TRADE: AN ILLUSION? AgEcon
Tollens, Eric.
Tipo: Working or Discussion Paper Palavras-chave: International Relations/Trade.
Ano: 2003 URL: http://purl.umn.edu/31840
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FOOD SECURITY IN KINSHASA, COPING WITH ADVERSITY AgEcon
Tollens, Eric.
Tipo: Working or Discussion Paper Palavras-chave: Food Security and Poverty.
Ano: 2002 URL: http://purl.umn.edu/31848
Registros recuperados: 44
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