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| Registros recuperados: 50 | |
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| Gruere, Guillaume P.; Bouet, Antoine; Mevel, Simon. |
| Genetically modified (GM) food crops have the potential to raise agricultural productivity in Asian countries, but they are also associated with the risk of market access losses in sensitive importing countries. We study the potential effects of introducing GM food crops in Bangladesh, India, Indonesia, and the Philippines in the presence of trade-related regulations of GM food in major importers. We focus on GM field crops (rice, wheat, maize, soybeans, and cotton) resistant to biotic and abiotic stresses, such as drought-resistant rice, and use a multi-country, multi-sector computable general equilibrium model. We build on previous international simulation models by improving the representation of the productivity shocks associated with GM crops, and by... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Genetically modified food; International trade; Segregation; Asia; International Relations/Trade. |
| Ano: 2007 |
URL: http://purl.umn.edu/42359 |
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| Miranowski, John A.; Jensen, Helen H.; Batres-Marquez, S. Patricia; Ishdorj, Ariun. |
| An important dimension of product differentiation and segregation for specialty crops is the added handling and transaction costs incurred. Some forms of business organization may realize lower costs of providing such services, and if specialty crop production is growing relative to commodity production, these two factors may have implications for industry structure. We use data from an Iowa grain handling survey to test hypotheses developed in the non-empirical transaction-costs literature with respect to organizational and financial governance of cooperatives and private and corporate firms. Preliminary results are discussed with respect to business organizations, added costs, investments, crops, and contracting. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Contracting; Cooperatives; Corporations; Grain handling; Industry structure; Segregation; Specialty crops; Transaction costs; Crop Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/18323 |
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| Fumagalli, Elena; Fumagalli, Laura. |
| The paper studies the impact of ethnic diversity on social participation of young people. We first propose a theoretical model in which the agents choose between structured and unstructured social activities by taking into account the ethnic composition of the groups they join. We test our predictions using English census data together with the `Longitudinal Survey of Young People in England' (LSYPE) and we find that ethnic segregation increases the probability of hanging around near home, while ethnic fractionalization decreases it. Furthermore, more structured activities are not affected by ethnic fractionalization. Finally, we use an IV strategy based on both historical and geographical data to correct for endogenous sorting into neighborhoods. The... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Social Participation; Fractionalization; Segregation; Community/Rural/Urban Development; C25; D71; J15. |
| Ano: 2009 |
URL: http://purl.umn.edu/55293 |
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| Wilson, William W.; Dahl, Bruce L.. |
| Development of genetically modified crops is challenging the functions of the grain marketing system with many participants arguing for Identity Preservation (IP) systems prior to release of GM varieties. In this study, a stochastic optimization model was developed to determine optimal testing strategies. The model chooses the optimal testing strategy that maximizes utility (minimizes disutility) of additional system costs due to testing and rejection and allows estimation of the risk premium required for sellers to undertake a dual marketing system with GM/Non-GM segregations over the current Non-GM system. Elements of costs (testing costs, rejection costs, and risk premium) were estimated for a base model representing a grain export chain. The model... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Genetically modified organisms; Biotechnology; Wheat; Risk; Segregation; Identity preservation; Crop Production/Industries. |
| Ano: 2002 |
URL: http://purl.umn.edu/23502 |
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| Csillei, Bela. |
| According to the previous EU reports about Hungary: "the officially acknowledged 12 minorities integrated into the Hungarian society, the situation of the Hungarian gypsy minority remains difficult. The territorial layout of the gypsy population is more or less matched by the rural areas, where high rate of unemployment, segregation, inner peripherial situation, and limitless social conflicts are present. In order to meet the above mentioned social-economic challenges it is important that the channels of the improving of cultural capital should run parallel with the characteristics of the local societies. It is important, that with the help of the educational mobilisation programmes the difficulties surfacing due to the social coexistence can be decreaded... |
| Tipo: Journal Article |
Palavras-chave: Segregation; Gypsy social groups; Equality of opportunity; Integration; Community/Rural/Urban Development; Labor and Human Capital. |
| Ano: 2008 |
URL: http://purl.umn.edu/47543 |
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| Arcanjo,Danielle Beatriz Marques Campos; Vidal,Paloma Oliveira; Santos,José Yure Gomes dos; Venancio,Larissa Paola Rodrigues; Suesdek,Lincoln; Amorim,Jaime Henrique. |
| Abstract Aedes (Stegomyia) aegypti (A. aegypti) transmits arboviral diseases of high public health importance, including those caused by Zika virus (ZIKV), Dengue virus (DENV), Chikungunya virus (CHIKV) and Yellow fever virus (YFV). Barreiras is a city with 157,638 inhabitants in the West of the State of Bahia, Northeast of Brazil. The climate is dry, with well-determined and concentrated seasons of rains. The city is crossed by a Federal Highway and by the Rio Grande river. In this study, we aimed to understand the dynamics of mosquito vectors and arboviral diseases in Barreiras. We used correlation statistics to investigate a possible relationship among rains, mosquito abundance and transmission of diseases. In addition, as a preliminary population... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: A.aegypti; Geometric morphometrics; Transmission; Barriers; Segregation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100208 |
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| Registros recuperados: 50 | |
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