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Registros recuperados: 77
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A PRIMER for Selecting New Enterprises for Your Farm AgEcon
Woods, Timothy A.; Isaacs, Steven G..
This publication is designed to help producers evaluate new enterprises for their farms of family businesses. It is based on a set of worksheets to help evaluate Profitability, Resource requirements, Information needs, Marketing decisions, Enthusiasm for, and the Risk associated with a new enterprise.
Tipo: Report Palavras-chave: Alternatives; Marketing; Business plan; Diversification; Tobacco; Agribusiness; Marketing.
Ano: 2000 URL: http://purl.umn.edu/42316
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A process‐based model supports an association between dispersal and the prevalence of species traits in tropical reef fish assemblages ArchiMer
Donati, Giulia Francesca Azzurra; Parravicini, Valeriano; Leprieur, Fabien; Hagen, Oskar; Gaboriau, Theo; Heine, Christian; Kulbicki, Michel; Rolland, Jonathan; Salamin, Nicolas; Albouy, Camille; Pellissier, Loïc.
Habitat dynamics interacting with species dispersal abilities could generate gradients in species diversity and prevalence of species traits when the latter are associated with species dispersal potential. Using a process‐based model of diversification constrained by a dispersal parameter, we simulated the interplay between reef habitat dynamics during the past 140 million years and dispersal, shaping lineage diversification history and assemblage composition globally. The emerging patterns from the simulations were compared to current prevalence of species traits related to dispersal for 6315 tropical reef fish species. We found a significant spatial congruence between the prevalence of simulated low dispersal values and areas with a large proportion of...
Tipo: Text Palavras-chave: Biodiversity; Dispersal; Diversification; Mechanistic models; Reef fish; Traits.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00516/62750/67136.pdf
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A Synthesis of Theoretical Concepts for Analysing Non-Farm Rural Employment AgEcon
Buchenrieder, Gertrud; Mollers, Judith.
Employment diversification is a major livelihood strategy in rural areas and is thus a focal point of the ongoing rural development debate. The issue of non-farm diversification is undoubtedly complex and its determinants are difficult to identify. Increasingly, there is a need to address, clarify and bring together theoretical concepts for analysing non-farm rural employment (NFRE). With this in mind, the objective of this paper is to summarize and link existing theories and to introduce some new aspects with regard to modelling NFRE and employment diversification. NFRE dynamics are closely interrelated with the institutional framework and its incentives and constraints. The behaviour of rural decision-makers also depends on fundamental determinants such...
Tipo: Conference Paper or Presentation Palavras-chave: Rural non-farm employment; Diversification; Theoretical framework; Labor and Human Capital; O18; Q12.
Ano: 2006 URL: http://purl.umn.edu/25475
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Access to Land, Income Diversification and Poverty Reduction in Rural Kenya AgEcon
Karugia, Joseph Thuo; Oluoch-Kosura, Willis; Nyikal, Rose Adhiambo; Odumbe, Michael; Marenya, Paswel Phiri.
The increasing land scarcity and the worsening trend of poverty in Kenya in recent years have raised concerns about the focus on land-based agriculture as the basis of growth in the rural areas. This paper combines two complementary data sets obtained from two locations in Kenya, drawn against distinctively different land availability patterns, to examine the diverse rural asset base and key sources of livelihood in the rural areas. The analysis reveals that while access to productive land is still an important determinant of livelihoods in the rural areas, even where land holdings are very small, growth in farm productivity alone may not guarantee households sufficient incomes to escape poverty. We find evidence to suggest that growth of non-farm sector...
Tipo: Conference Paper or Presentation Palavras-chave: Diversification; Livelihoods; Land holding; Assets; Kenya.; Community/Rural/Urban Development; Q12; Q15; Q18; O18; O13.
Ano: 2006 URL: http://purl.umn.edu/25488
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Agricultural Export Diversification in Latin America and the Caribbean AgEcon
Taylor, Timothy G.; Francis, Brian.
Agriculture, in general, and agricultural exports in particular, have long been critical to economic growth and development in Latin America and the Caribbean (LAC). Despite the importance of agriculture to the region and the vast amount of resources devoted to the promotion of agricultural export diversification in LAC, there has been virtually no research undertaken to assess the degree to which the agricultural export structures in LAC countries have in fact diversified. Using disaggregate data on agricultural exports over the 1961-2000 period for 10 LAC countries, entropy-based measures of diversification are computed and analyzed. The empirical results show that the post-1985 period has witnessed some degree of agricultural export diversification...
Tipo: Journal Article Palavras-chave: Agriculture; Caribbean; Diversification; Entropy; Exports; Latin America.
Ano: 2003 URL: http://purl.umn.edu/43284
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Agricultural outsourcing: A comparison between the Netherlands and Japan AgEcon
Igata, Masayo; Hendriksen, Astrid; Heijman, Wim J.M..
Outsourcing may well be a tool for increasing the efficiency of Japanese agriculture. However, outsourcing is not frequently used by Japanese farmers in their day-to-day management. This has resulted in a weakly developed market for agricultural contracting services. In order to take a closer look at the reasons for making use of outsourcing, a comparative study was carried out between the agricultural contracting sector in Japan and that in the Netherlands, where agricultural outsourcing is a regular practice. In the Netherlands, especially small, diversified farms that lack sufficient labour tend to outsource agricultural work; in Japan, the situation is far less clear. Cultural factors possibly play an important role.
Tipo: Journal Article Palavras-chave: Agricultural outsourcing; Farm size; Diversification; Labour shortage; Cultural factors; Agricultural and Food Policy; International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008 URL: http://purl.umn.edu/48332
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Analysis of Farm Development in Dutch Agriculture and Horticulture AgEcon
Bremmer, Johan; Oude Lansink, Alfons G.J.M.; Olson, Kent D.; Baltussen, Willy H.M.; Huirne, Ruud B.M..
This paper analysis the effects of farmer characteristics, farm structure and farm performance on farm renewal and farm growth. The data set used in this research consists of panel data from the Dutch Farm Accountancy Data Network of farms specialized in plant production extended with a data from survey among those farms. Probit models were used to determine the likelihood of the changes. Results show that the degree of mechanization increases the probability of farm growth and farm renewal. Family labour input and solvency have a negative impact on farm growth. Farm size is positively correlated with farm renewal. No indications of the influence of the life cycle have been found.
Tipo: Conference Paper or Presentation Palavras-chave: Decision making; Diversification; Farm growth; Farm structure; Innovation; Panel data; Crop Production/Industries; Farm Management.
Ano: 2002 URL: http://purl.umn.edu/7025
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ANALYZING FARM PARTICIPATION DECISIONS IN AGROTOURISM ACTIVITIES IN NORWAY: SOME WELFARE IMPLICATIONS AgEcon
Loureiro, Maria L.; Jervell-Moxnes, Anne.
The aim of this paper is to assess the role played by socio-demographic factors, the financial situation of the farm household, as well as the productive orientation and physical location of the farm on the adoption of agro-tourism activities in Norway. Agro-tourism activities in Norway can be classified mainly into two groups: a) renting of fishing and hunting rights, and b) renting of rooms on the farm, huts, cabin, and provision or direct sell of food to travelers. Results indicate that factors such as the size and the location (rural or semi-rural) of the farm play a statistically significant and more important role on the decision of renting fishing and hunting rights than on the development of other agro-tourism activities on the farm. On the...
Tipo: Conference Paper or Presentation Palavras-chave: Agro-tourism; Diversification; Farming; Norway; Farm Management.
Ano: 2004 URL: http://purl.umn.edu/19959
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BREAKING THE BOOM AND BUST: EXPLORING THIRTY YEARS OF DIVERSIFICATION IN WESTERN CANADA AgEcon
Chambers, Edward J.; Ryan, Chris.
The topic of diversification has been studied extensively by academics and policy makers. The theory of diversification, dating back to the 1930s and the Great Depression, suggests that increasing the variety of industries in a region spreads the risk and reduces the likelihood that all industries will suffer a downturn at the same time. This serves to mitigate the boom and bust pattern often experienced by a heavy reliance on a limited number of industries, which in three of the four western provinces, means natural resource-based industries. This study examines diversification progress in the four western provinces over the last 30 years. The time span covers the greatest progress in trade liberalization policy in the nation’s history, and the evidence...
Tipo: Report Palavras-chave: Alberta; Western Canada; Diversification; "boom and bust"; Shift-share; Portfolio choice; Employment; Sector shift; Development; Policy; Policies; Economic history; History; Retrospective; Location quotients; Industrial Organization; Labor and Human Capital; Political Economy; Public Economics; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/60429
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Comparative genomics of closely related Thermococcus isolates, a genus of hyperthermophilic Archaea ArchiMer
Courtine, Damien.
The immense genomic diversity of microorganisms allows them to live everywhere, even in extreme environments such as deep hydrothermal vents. Scattered over the seabed, these are a good model for studying the biogeography and genomes diversification. A comparative genomics approach has been used on closely related isolates, of the genus Thermococcus. This work aimed at identifying mechanisms that have a role in the diversification of these genomes, and also to identify genes involved in this differentiation. For this purpose, two groups of about 20 isolates with different geographical origins were selected and sequenced.The geographical isolation resulting from colonization of new hydrothermal systems is likely to be a diversification and speciation factor...
Tipo: Text Palavras-chave: Génomique comparative; Thermococcus; Diversification; Génome; Hyperthermophile; Comparative!genomics; Thermococcus; Diversification; Genome; Hyperthermophile.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00609/72141/70893.pdf
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Comparing spatial diversification and meta-population models in the Indo-Australian Archipelago ArchiMer
Chalmandrier, Loic; Albouy, Camille; Descombes, Patrice; Sandel, Brody; Faurby, Soren; Syenning, Jens-christian; Zimmermann, Niklaus E.; Pellissier, Loic.
Reconstructing the processes that have shaped the emergence of biodiversity gradients is critical to understand the dynamics of diversification of life on Earth. Islands have traditionally been used as model systems to unravel the processes shaping biological diversity. MacArthur and Wilson's island biogeographic model predicts diversity to be based on dynamic interactions between colonization and extinction rates, while treating islands themselves as geologically static entities. The current spatial configuration of islands should influence meta-population dynamics, but long-term geological changes within archipelagos are also expected to have shaped island biodiversity, in part by driving diversification. Here, we compare two mechanistic models providing...
Tipo: Text Palavras-chave: Allopatric speciation; Continental drift; Dispersal; Diversification; Meta-population model; Neutral model.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00602/71377/69825.pdf
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Competitiveness of Polish regional Agro-clusters AgEcon
Bronisz, Urszula; Heijman, Wim J.M..
The present paper concerns the analysis and evaluation of the performance of regional agro-clusters in Poland and also the examination of the significant basic factors which have influence on it. The objective of the paper is both to rank the 16 Polish regions according to their competitive position in the agrocomplex and to present their economic and social position, show differences and regional contrasts. Also, we compare the outcomes with the overall Polish regional competitive index, which was created in accordance with the Huggins Institute approach.
Tipo: Journal Article Palavras-chave: Agricultural outsourcing; Farm size; Diversification; Labour shortage; Cultural factors; Agricultural and Food Policy; International Development; Productivity Analysis.
Ano: 2008 URL: http://purl.umn.edu/48333
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Cost-Effective Farm-Level Nitrogen Abatement in the Presence of Environmental and Economic Risk AgEcon
Ekman, Sone.
This paper evaluates the consequences of considering environmental and economic risk in the analysis of cost-effective nitrogen abatement options in crop production. A farm-level mathematical programming model incorporating nitrogen leaching variability, field time variability, yield variability, and output price variability is developed. The empirical results reveal that requiring a high reliability with respect to a desired abatement target can be extremely costly, due to the high variability of nitrogen emissions. It appears to be sufficient to reduce average nitrogen load in order to reduce the environmental risk associated with nitrogen leaching variability, since a change to crops with lower average load also results in lower variability of nitrogen...
Tipo: Conference Paper or Presentation Palavras-chave: Nitrogen abatement; Risk aversion; Diversification; Chance constraints; Discrete stochastic programming; Risk and Uncertainty.
Ano: 2002 URL: http://purl.umn.edu/24860
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Cultivar Diversity: A Neglected Risk Management Strategy AgEcon
Tadesse, Dawit; Blank, Steven C..
Risk reduction through diversification across cultivars is evaluated. A case study of peach growers in California shows that cultivar diversity reduces both yield and revenue variability. As a result, the probability of falling below minimum income requirements set using a safety-first model is reduced using this strategy.
Tipo: Journal Article Palavras-chave: Cultivar; Diversification; Peaches; Risk management; Safety first; Risk and Uncertainty.
Ano: 2003 URL: http://purl.umn.edu/31093
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Dealing with Uncertainty in Flood Management Through Diversification Ecology and Society
Aerts, Jeroen C. J. H.; ; jeroen.aerts@ivm.falw.vu.nl; Botzen, Wouter; ; Wouter.Botzen@ivm.falw.vu.nl; Veen, Anne van der; ; a.vanderveen@ctw.utwente.nl; Krywkow, Joerg; ; j.krywkow@ctw.utwente.nl; Werners, Saskia; ; Saskia.Werners@wur.nl.
This paper shows, through a numerical example, how to develop portfolios of flood management activities that generate the highest return under an acceptable risk for an area in the central part of the Netherlands. The paper shows a method based on Modern Portfolio Theory (MPT) that contributes to developing flood management strategies. MPT aims at finding sets of investments that diversify risks thereby reducing the overall risk of the total portfolio of investments. This paper shows that through systematically combining four different flood protection measures in portfolios containing three or four measures; risk is reduced compared with portfolios that only contain one or two measures. Adding partly uncorrelated measures to the portfolio diversifies...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive water management; Diversification; Flood risk; Modern Portfolio Theory; Uncertainty; Vulnerability..
Ano: 2008
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Determinants and Dynamics of Farm Diversification AgEcon
Weiss, Christoph R.; Briglauer, Wolfgang.
This paper examines the impact of various farm and household characteristics (such as farm size, the off-farm employment status, the farm operator's age and schooling and the number of family members) on the level as well as the dynamics of on-farm diversification. Using linked census data for Upper-Austria from 1980, 1985 and 1990 we provide evidence that smaller farms are more specialised and also tend to increase the degree of specialisation over time more quickly than large farms. A significantly lower degree of diversification (higher degree of specialisation) as well as a stronger reduction in diversification over time is also reported for businesses operated by older, less educated, part-time farm operators. The analysis of diversification dynamics...
Tipo: Conference Paper or Presentation Palavras-chave: Diversification; Farm Sector; Dynamics; Panel Data; Farm Management.
Ano: 2002 URL: http://purl.umn.edu/24929
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Distributional patterns of the Neotropical genus Thecomyia Perty (Diptera, Sciomyzidae) and phylogenetic support Rev. Bras. entomol.
Pires,Amanda Ciprandi; Marinoni,Luciane.
Distributional patterns of the Neotropical genus Thecomyia Perty (Diptera, Sciomyzidae) and phylogenetic support. The distributional pattern of the genus Thecomyia Perty, 1833 was defined using panbiogeographic tools, and analyzed based on the phylogeny of the group. This study sought to establish biogeographical homologies in the Neotropical region between different species of the genus, based on their distribution pattern and later corroboration through its phylogeny. Eight individual tracks and 16 generalized tracks were identified, established along nearly the entire swath of the Neotropics. Individual tracks are the basic units of a panbiogeographic study, and correspond to the hypothesis of minimum distribution of the organisms involved. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Areas of endemism; Diversification; Panbiogeography; Phylogeny; Tetanocerini.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000100002
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Diversidade de Coccinellidae (Coleoptera) em plantas aromáticas (Apiaceae) como sítios de sobrevivência e reprodução em sistema agroecológico Neotropical Entomology
Lixa,Alice T; Campos,Juliana M; Resende,André L S; Silva,Joice C; Almeida,Maxwell M T B; Aguiar-Menezes,Elen L.
Studies show that Apiaceae may provide concentrated vital resources for predator insects, stimulating their abundance, diversity and persistence in agricultural systems, thereby increasing their efficiency as biological control agents. Among the predatory insects, Coccinellidae (Coleoptera) on many different species both as larvae and adults, complementing their diet with pollen and/or nectar. This study aimed to determine the diversity and relative abundance of Coccinellidae species visiting plants of Anethum graveolens (dill), Coriandrum sativum (coriander) and Foeniculum vulgare (sweet fennel) (all Apiaceae), particularly in their blooming seasons, and to evaluate the potential of these aromatic species for providing the resources for survivorship and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ladybeetle; Food source; Conservation biological control; Diversification.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000300007
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Diversificação das Exportações do Agronegócio Brasileiro. AgEcon
Zanella, Matheus Alves.
Este artigo procura identificar mudanças no padrão das exportações do agronegócio brasileiro nos últimos anos em direção a diversificação ou concentração, segundo as categorias destinos (bloco econômicos) ou produtos. Com esse intuito, se utiliza do Índice de Hirschman para mensurar concentração/diversificação das exportações do setor nos últimos 10 anos. Os resultados indicam que houve uma nítida diversificação dos destinos de exportação, sem que tenha ocorrido, no entanto, uma diversificação dos produtos exportados. A variação da cotação do dólar e dos preços de exportação no período tiveram uma importante influência no desempenho das exportações de produtos tradicionais, o que acarretou em uma concentração no período de desvalorização do Real e relativa...
Tipo: Conference Paper or Presentation Palavras-chave: Exportações; Diversificação; Concentração; Destinos; Exports; Diversification; Concentration; Destinations; Agribusiness; International Relations/Trade.
Ano: 2008 URL: http://purl.umn.edu/106121
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Diversification in Indian Agriculture towards High-Value Crops: The Role of Smallholders AgEcon
Birthal, Pratap Singh; Joshi, P.K.; Roy, Devesh; Thorat, Amit.
Agricultural diversification towards high-value crops can potentially increase farm incomes, especially in a country like India where demand for high-value food products has been increasing more quickly than that for staple crops. Indian agriculture is overwhelmingly dominated by smallholders, and researchers have long debated the ability of a smallholder-dominated subsistence farm economy to diversify into riskier high-value crops. Here, we present evidence that the gradual diversification of Indian agriculture towards high-value crops exhibits a pro-smallholder bias, with smallholders playing a proportionally larger role in the cultivation of vegetables versus fruits. The observed patterns are consistent with simple comparative advantage-based production...
Tipo: Working or Discussion Paper Palavras-chave: Diversification; Smallholders; High-value agriculture; Crop Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/42372
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