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| Registros recuperados: 44 | |
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| Demont, Matty; Tollens, Eric. |
| In the present paper we estimate the impact of a biotechnology innovation in Spanish agriculture. Transgenic Bt maize offers the potential to control corn borers, that cause economically important losses in Spanish maize cultivation, more efficiently. Since 1998, Syngenta commercializes the variety Compa CB, equivalent to an annual area of 25.000ha, or an average adoption rate of 5,2% of Spains total land allocation to maize. The profit increase engendered by this technological change during the four-year period 1998-2001 is estimated to be E8,4 million for Spanish agriculture and E2,8 million for Syngenta and the seed suppliers. The industry appears to be able to extract only one fourth of the total benefits. The lion share, i.e., three fourth,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2003 |
URL: http://purl.umn.edu/31851 |
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| Demont, Matty; Tollens, Eric. |
| Some of the crucial assumptions of applied welfare economics do not hold any longer in the case of agricultural biotechnology innovations. We review some modifications to the conventional methodologies measuring the size and distribution of agricultural research benefits, which are critical for the assessment of the economic impact of agricultural biotechnology in the European Union. While some modifications are related to the specific features of modern agricultural biotechnology and technology adoption, others are related to the specific institutional settings of the European Union's Common Agricultural Policy and commodity markets. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2001 |
URL: http://purl.umn.edu/31835 |
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| Tollens, Eric. |
| The paper deals with the emergence and rise of market information systems in sub-Sahara Africa as a result of economic liberalization. There has already been an evolution is such systems and no particular system dominates. Various types of market information systems exist today, public or private, all or not linked to a commodity exchange. The rationale of a commodity exchange is discussed, linked to a market information system. They all struggle with problems of sustainable financing. Very few if any good impact studies exist on such systems, demonstrating their effects on market transparency, information asymmetry, the bargaining power of poor farmers and their market access. Dissemination of the information, using traditional (radio) or modern (ICT)... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Marketing; Q13; Q18; O13; O17; H41. |
| Ano: 2006 |
URL: http://purl.umn.edu/25590 |
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| 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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| 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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| Dillen, Koen; Demont, Matty; Tollens, Eric. |
| After more than a decade of GM crops, literature reports farmers and consumers can gain significantly from the technology, despite the intellectual property rights assigned to the innovator. In this paper we assess the effect of heterogeneity on this distribution of benefits. A two dimensional framework is created to assess the ex ante benefits of an innovation. Given this setting and the scarce data often available, a parametric modelling approach is taken. The two dimensions of heterogeneity, spatial and temporal, are explicitly modelled as they have a different importance for different technologies. Using this framework we can simulate different corporate pricing strategies and evaluate the benefits generated under changing heterogeneity. The framework... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Heterogeneity; Parametric modelling; Ex ante; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2008 |
URL: http://purl.umn.edu/43945 |
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| Demont, Matty; Tollens, Eric. |
| In this working paper we attempt to establish a general analytical framework for the calculation of the micro- and macroeconomic benefits and costs of biotechnology applications in EU agriculture. Since these innovative applications are typically protected by intellectual property rights, standard welfare analyses will overestimate total benefits generated by these innovations. On the other hand, this doesn't mean that innovators are extracting all of the benefits. A recent ex-post welfare analysis on US Bt-cotton shows that farmers have captured the largest share of benefits (Falck-Zepeda, Traxler and Nelson, 1999). Due to the importance of intellectual property rights and the consolidation of the agricultural input industry, the framework presented... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1999 |
URL: http://purl.umn.edu/31845 |
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| Demont, Matty; Tollens, Eric. |
| We develop a 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 sugar beet adoption in the European Union (EU) and the Rest of the World (ROW). Our model results suggest that the ROW captures the largest share of the benefits (53 % of total welfare increase). The EU sugar industry absorbs the next largest share of the benefits (30 %), with the smallest share (17 %) accruing to seed suppliers and gene developers. Since EU intervention prices are exogenously fixed each year, EU consumers do not take part in the distribution of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Industrial Organization; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2002 |
URL: http://purl.umn.edu/31854 |
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| 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 dIvoire. 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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| Registros recuperados: 44 | |
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