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| Registros recuperados: 18 | |
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| Lopes,Allan R.; Marcolin,Jonatas; Johann,Jerry A.; Boas,Márcio A. Vilas; Schuelter,Adilson R.. |
| ABSTRACT The aim of this study is to identify homogeneous rainfall zones in the winter and summer 1st and 2nd crops, in the state of Paraná, Brazil. The zones were defined by clustering using the expectation-maximization (EM) algorithm to transform seasonal rainfall series. Monthly average rainfall data collected from 157 weather stations for 20 years (1996 to 2015) were employed. The results show that the number of homogeneous zones varied among growing seasons. The summer crop presented two clusters, with rainfall averages of 1489 and 1925 mm; the second crop presented four clusters, with averages of 1849, 1004, 1454, and 1182 mm; and the winter crop had three clusters, with averages of 969, 1498, and 1171 mm. Clustering was a useful instrument to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Data mining; Clusters; Expectation-maximization; Weka; Soybean; Maize; Wheat. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000600707 |
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| Johnson, Thomas G.. |
| This paper explores the emerging concept of place-based economic policy. It reviews recent literature on place-based economics policy, especially regional competitiveness policy, and explores the adoption and diffusion of this concept by economic development practitioners and social science researchers. It attempts to answer the question: Are place-based economic policy and the underlying conceptual foundations lasting innovations, or are they fads which economic development practitioners and social scientists will adopt until another fad emerges? The conclusion is that economic development practitioners and social scientists do tend to respond to fads. To ensure that regional economic development policy is not dominated by fads, social scientists must get... |
| Tipo: Journal Article |
Palavras-chave: Regional; Competitiveness; Place-based; Clusters; Policy; Community/Rural/Urban Development. |
| Ano: 2007 |
URL: http://purl.umn.edu/10160 |
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| Kolympiris, Christos; Klein, Peter G.; Kalaitzandonakes, Nicholas G.. |
| Why do biotech firms cluster? New and established firms in biotech clusters are said to capitalize on knowledge spillovers, labor-market pooling, and other externalities. Some have even argued that such spillovers are so strong that the cluster itself, rather than the individual, is the locus of entrepreneurship. Such arguments, however, do not resolve the mechanism by which clusters might contribute to the establishment of new firms. This paper proposes a conceptual framework for analyzing the locational choices of entrepreneurial firms in the life-sciences industry. Building on both the cluster literature and the literature on entrepreneurship, we develop hypotheses about how cluster characteristics, the entrepreneurs personal characteristics, and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Entrepreneurship; Biotechnology; Clusters; Knowledge spillovers; Agglomeration economies; Industrial Organization; L26; L65; O18; O32. |
| Ano: 2007 |
URL: http://purl.umn.edu/9761 |
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| de Janvry, Alain; Sadoulet, Elisabeth; Winters, Paul C.; Murgai, Rinku. |
| The practice of mutual insurance is conditioned by two types of transaction costs: "association" costs in establishing links with insurance partners and "extraction" costs in using these links to implement insurance transfers. Data on insurance-motivated water exchanges among households along two irrigation canals in Pakistan show that households exchange bilaterally with neighbors and family members but the majority exchange with members of tightly knit clusters. We, therefore, develop a model that endogenizes both cluster formation and the quality of insurance in the chosen cluster as a function of the relative importance of association and extraction costs. Full insurance at the community level, the object of most empirical tests of mutual insurance, is... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Mutual insurance; Transaction costs; Clusters; Risk and Uncertainty. |
| Ano: 2000 |
URL: http://purl.umn.edu/12905 |
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| Riedel, Bettina. |
| In the present study we combine cluster theory with a value chain approach, with the aim of discovering elements of the European fresh vegetable business that could enable local producers to gain competitive advantages in a global market. European producers of fresh vegetables are under pressure to improve their performance and increase their competitiveness. Competitive advantage can be gained through innovation and by using unique resources stemming from cooperation between producers and complementary actors in local clusters. However, locally clustered producers do not sell to open markets but need access to value chains governed by lead firms, the large European retail chains, which set the rules and conditions of participation. The study presents... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Fresh vegetables; Value chains; Clusters; Competitiveness; Agribusiness; Institutional and Behavioral Economics; Marketing; Q13. |
| Ano: 2009 |
URL: http://purl.umn.edu/54094 |
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| Clark, Richard A.. |
| The theory and practice of sustainable improvement and innovation partnerships and networks design and management can be enhanced in agricultural industries. The BPP project can contribute to enhanced real-world practices, and the research and development of better mechanisms, for the design and management of innovation partnerships and networks. The Partnership and Network Strategy is designed to accelerate the rate, scale and impact of valuable improvements and innovations in the beef industry by involving key players in the industry and ensuring support for all partners. |
| Tipo: Article |
Palavras-chave: Partnerships; Networks; Clusters; Networking; Support; Dissemination; Diffusion; Farm Management. |
| Ano: 2008 |
URL: http://purl.umn.edu/122183 |
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| Stege,Alysson Luiz; Bacha,Carlos José Caetano. |
| Resumo: O meio rural brasileiro tem se caracterizado, em especial nas últimas quatro décadas, pela diminuição da sua população, diminuição do total de pessoas ocupadas na agropecuária e pelo crescimento de atividades não agrícolas. No entanto, esses processos não são homogêneos entre os estados brasileiros, parecendo haver regiões ainda mais agrícolas do que outras. Neste contexto, o presente artigo tem como objetivo propor e estimar, usando a análise fatorial, um indicador de intensidade das atividades agrícolas (chamado de indicador de “agriculturalização”), além de apresentar a distribuição espacial deste indicador. Para tanto, utiliza-se a análise exploratória de dados espaciais considerando os estados Paraná, São Paulo, Mato Grosso do Sul, Mato Grosso... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agriculturalização; Agropecuária; Análise fatorial; Análise espacial; Clusters. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032020000300200 |
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| Registros recuperados: 18 | |
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