Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (25) Infoteca-e (3) Autor Cacho, Oscar J. (7) Horan, Richard D. (6) Greenville, Jared W. (3) Hean, Robyn L. (3) MacAulay, T. Gordon (3) Xie, Fang (3) LOPES, M. A. (2) Sanchirico, James N. (2) Wilen, James E. (2) Acciani, Claudio (1) Adams, Damian C. (1) Buhle, Eric (1) Burnett, Kimberly M. (1) Champetier, Antoine (1) De Blasi, Giuseppe (1) De Boni, A. (1) Fenichel, Eli P. (1) Gramig, Benjamin M. (1) Hester, Susan M. (1) Kaiser, Brooks A. (1) Mais... Palavra-chave Bioeconomics (28) Resource /Energy Economics and Policy (14) Environmental Economics and Policy (8) Q22 (5) Epidemiology (4) Invasive species (4) Livestock Production/Industries (4) Bioeconomia (3) Disease ecology (3) Fisheries management (3) Marine protected areas (3) Optimal control (3) Q57 (3) Replicator dynamics (3) Susceptible-infected-recovered (SIR) model (3) Brucellosis (2) Fisheries (2) Land Economics/Use (2) Q2 (2) Q26 (2) Mais... Tipo do documento Conference Paper or Presentation (10) Working or Discussion Paper (7) Journal Article (4) Article (2) Artigo na mídia (2) Presentation (2) Folhetos (1) Mais... Ano 2020 (3) 2012 (1) 2011 (2) 2010 (1) 2009 (4) 2007 (3) 2006 (3) 2005 (1) 2004 (1) 2003 (3) 2000 (2) 1999 (3) 1998 (1) Mais... País United States (25) Brazil (3) Idioma Inglês (25) Português (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 28 Primeira ... 1 2 ... Última Aproveitamento de resíduos agroindustriais: uma abordagem sustentável. Infoteca-e VAZ JUNIOR, S.. A produção agropecuária é uma das mais importantes atividades socioeconômicas humanas, uma vez que visa à produção de alimentos, fibras e bioenergia. Mais recentemente a agropecuária passou também a prover matérias-primas diversas para produção de novos bioprodutos e bioinsumos, naquilo que se convencionou chamar de economia circular ou bioeconomia. Isso somente foi possível pelo constante avanço científico-tecnológico que permitiu o desenvolvimento de novas biomassas assim como de novos processos industriais para aproveitamento de culturas dedicadas e também daquilo que outrora era chamado de resíduo. Para se ter uma ideia da dimensão de tal atividade, dados recentes estimam que a produção agrícola mundial seja da ordem de 7,26 Gt, e que o volume de... Tipo: Folhetos Palavras-chave: Economia circular; Bioeconomia; Biomassa vegetal; Biomassa agrícola; Sustentabilidade; Biomassa; Resíduo Agrícola; Matéria Prima; Biomass; Bioeconomics; Sustainable agriculture; Agricultural wastes. Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126255 Criatividade e complexidade na nova economia. Infoteca-e LOPES, M. A.. Criatividade e complexidade na economia são temas essenciais na busca por ampliar não apenas riqueza, mas também o bem-estar e a resiliência da sociedade. A bioeconomia entra com vantagem, por ser capaz de combinar de forma sinérgica recursos naturais e tecnologias inovadoras, em modelo de produção de base biológica, limpo e renovável. Tipo: Artigo na mídia Palavras-chave: Bioeconomia; Criatividade; Complexidade; Economia; Bioeconomics. Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128768 Ciência pública como "locomotiva limpa-trilhos". Infoteca-e LOPES, M. A.. Discute o papel do Estado para garantir a infraestrutura e a capacidade científica necessárias para se compreender e superar infortúnios, em especial em momentos de crise. Apresenta o fortalecimento da ciência no ambiente público e a promoção de parcerias público-privadas como desafios críticos para recuperação do setor industrial no Brasil, que precisa mais do que nunca ampliar a criatividade econômica e a complexidade industrial, inclusive, por meio da bioeconomia. Tipo: Artigo na mídia Palavras-chave: Bioeconomia; Pesquisa e desenvolvimento; Ciência; Research and development; Bioeconomics. Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128764 Multi-Market Trading for Cooperative Resource Management: An Application to Water Pollution and Fisheries AgEcon Horan, Richard D.; Shortle, James S.. Increasingly, environmental problems are recognized to involve linkages across multiple environmental variables (e.g., pollution and a fishery). Prior work on managing these complex, linked systems generally focuses on efficiency rather than implementation. However, implementation is important and will generally involve changing human behaviors within the multiple economic sectors that impact upon the multiple environmental variables. Tradable permit markets are generally seen as a coordinating mechanism, within a particular regulated sector, that enhances efficiency by incentivizing agents to respond to behavioral choices of others within the sector. However, prior work stops short of coordinating behaviors across multiple sectors for cases where... Tipo: Conference Paper or Presentation Palavras-chave: Permit trading; Fisheries; Pollution; Shapley values; Bioeconomics; Environmental Economics and Policy; Resource /Energy Economics and Policy. Ano: 2011 URL: http://purl.umn.edu/103591 Disease and Behavioral Dynamics for Brucellosis Control in Elk and Cattle in the Greater Yellowstone Area AgEcon Xie, Fang; Horan, Richard D.. This paper investigates private responses and ecological impacts of policies proposed to confront the problem of brucellosis being spread from elk to cattle in Wyoming. The policies consist of combinations of changes in elk feeding and population levels. Farmers’ responses to these dynamics are modeled along with the associated impacts to livestock population dynamics. Our findings suggest that feedbacks between jointly determined disease dynamics and decentralized economic behavior matter, and the elk feedgrounds do not actually generate economic harm to the individual farmers. Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomics; Disease ecology; Epidemiology; Replicator dynamics; Susceptible-infected-recovered (SIR) model; Wildlife disease; Wildlife feeding; Resource /Energy Economics and Policy. Ano: 2009 URL: http://purl.umn.edu/51707 Bang for the Buck: Cost-Effective Control of Invasive Species with Different Life Histories AgEcon Buhle, Eric; Margolis, Michael; Ruesink, Jennifer L.. Strategies for controlling invasive species can be aimed at any or all of the stages in the life cycle. In this paper we show how to combine biological data on population dynamics with simple economic data on control cost options to determine the least costly set of strategies that will halt an invasion. We then apply our methods to oyster drills (Ocinebrellus inornatus), an economically important aquaculture pest that has been accidentally introduced worldwide. If the costs of intervention were the same across life stages, extermination of adults would be an inefficient way to control species with the population dynamics characteristics of invaders. In the oyster drill case, however, efficient control targets adults because they are much easier to find. Tipo: Working or Discussion Paper Palavras-chave: Invasive species; Bioeconomics; Control strategies; Environmental Economics and Policy; Q10; Q2; Q22. Ano: 2004 URL: http://purl.umn.edu/10793 Disease and Behavioral Dynamics for Brucellosis Control in Elk and Cattle in the Greater Yellowstone Area AgEcon Xie, Fang; Horan, Richard D.. This paper investigates private responses and ecological impacts of policies proposed to confront the problem of brucellosis being spread from elk to cattle in Wyoming. The policies consist of combinations of changes in elk feeding and population levels. Farmers' responses to these dynamics are modeled along with the associated impacts to livestock population dynamics. Our findings suggest that feedbacks between jointly determined disease dynamics and decentralized economic behavior matter, and the elk feedgrounds do not actually generate economic harm to the individual farmers. Tipo: Journal Article Palavras-chave: Bioeconomics; Brucellosis; Disease ecology; Epidemiology; Replicator dynamics; Susceptible-infected-recovered (SIR) model; Wildlife disease; Wildlife feeding; Livestock Production/Industries; Resource /Energy Economics and Policy. Ano: 2009 URL: http://purl.umn.edu/50165 Managing Excessive Predation in a Predator-Prey Setting: The Case of Piping Plovers AgEcon Melstrom, Richard T.; Horan, Richard D.. Ecosystems involve interspecies interactions that can be influenced by human interventions. Prior work shows interventions that ignore these interactions cause efficiency-reducing ecosystem externalities. We show inefficiencies may also be attributable to nature, via interspecies interactions generating excessive competition or predation. Ecosystem management therefore may involve correcting both ecological and economic inefficiencies. We explore ecosystem management to correct ecological inefficiencies from predation. The inefficiencies are shown to be akin to anthropogenic externalities arising when humans harvest resources under open access conditions, and so the solution is to “regulate” predators. Viewing the ecological inefficiencies in this... Tipo: Presentation Palavras-chave: Bioeconomics; Wildlife management; Endangered species; Open access; Predator control; Predator removal; Exclosures; Piping Plovers; Merlins; Environmental Economics and Policy. Ano: 2012 URL: http://purl.umn.edu/123350 Temporary carbon storage and discount rates AgEcon Hean, Robyn L.; Cacho, Oscar J.; Menz, Kenneth M.. Several approaches have been proposed for accounting for temporary carbon sequestration in land-use change and forestry projects that are implemented to offset permanent emissions of carbon dioxide from the energy sector. In a previous paper, we evaluated the incentives provided by some of these approaches. In this paper, we investigate further what we call the “ideal” accounting system, where the forest owner would be paid for carbon sequestration as the service is provided and redeem payments when the forest is harvested and carbon is released back into the atmosphere. We demonstrate how discounting affects the net present value of the forest when carbon sequestration is taken into account under this ideal system. Not all carbon is released back into the... Tipo: Conference Paper or Presentation Palavras-chave: Carbon accounting; Reforestation; Discounting; Bioeconomics; Environmental Economics and Policy; Land Economics/Use. Ano: 2003 URL: http://purl.umn.edu/57888 Applying search theory to determine the feasibility of eradicating an invasive population in natural environments AgEcon Cacho, Oscar J.; Hester, Susan M.; Spring, Daniel. The detectability of invasive organisms influences the feasibility of eradicating an infestation. Search theory offers a framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. In this paper, search theory concepts are incorporated into a population model, and the costs of search and control are calculated as functions of the amount of search effort (the decision variable). Simulations are performed on a set of weed scenarios in a natural environment, involving different combinations of plant longevity, seed longevity and plant fecundity. Results provide preliminary estimates of the cost and duration of eradication programs to assist in prioritising weeds for control. The... Tipo: Article Palavras-chave: Bioeconomics; Invasive species; Operations research; Population dynamics; Weed control; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/118522 Optimal Control of Brucellosis in Bison in the Yellowstone National Park Area AgEcon Xie, Fang; Horan, Richard D.. Brucellosis is a highly infectious bacterial disease that causes infected females to abort their calves. It has caused devastating losses to U.S. farmers over the last century. The only known focus of Brucellosis left in the nation is wildlife such as bison and elk in the Greater Yellowstone Area. Vaccination and test-and-slaughter have been applied to brucellosis management in bison, and there has been discussion that a combination of both could potentially eradicate the disease in the Yellowstone National Park. However, there is no study on how to allocate resources between the two actions. This paper investigates the optimal allocation of these two selective management options, in a bioeconomic framework, when there are both existence and recreational... Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomics; Brucellosis; Disease ecology; Epidemiology; Optimal control; Susceptible-infected-recovered (SIR) model; Resource /Energy Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/61334 Jointly-Determined Livestock Disease Dynamics and Decentralized Economic Behavior AgEcon Gramig, Benjamin M.; Horan, Richard D.. We develop a dynamic model of livestock disease and decentralized economic behavior as a jointly-determined system. By accounting for feedbacks between behavioral choices and disease outcomes we capture the endogenous nature of infection risks. We consider government mandated testing of livestock herds and how private biosecurity incentives are affected by the structure of disease eradication polices. How well disease control policies are targeted affects their effectiveness and may result in farmers substituting government testing and disease surveillance for private biosecurity. Numerical simulation results demonstrate that failing to account for feedbacks between disease and economic dynamics may underestimate the level of infection. Not accounting for... Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomics; Epidemiology; Replicator dynamics; Externalities; Strategic behavior; Resource /Energy Economics and Policy. Ano: 2009 URL: http://purl.umn.edu/49260 Tree-crop interactions and their environmental and economic implications in the presence of carbon-sequestration payments AgEcon Wise, Russell M.; Cacho, Oscar J.. Growing trees with crops has environmental and economic implications. Trees can help prevent land degradation and increase biodiversity while at the same time allow for the continued use of the land to produce agricultural crops. In fact, growing trees alongside crops is known to improve both the productivity and sustainability of the land. However, due to high labour-input requirements, high costs of establishment, and delayed revenue returns, trees are often not economically attractive to landholders. Because of the Kyoto Protocol, and the growing emphasis on market-based solutions to environmental problems, the ability of trees to sequester and store CO2 has altered the economic landscape of agroforestry systems. The economic and management implications... Tipo: Conference Paper or Presentation Palavras-chave: Agroforestry; Bioeconomics; Tree/crop interactions; Carbon credits; Baselines; Environmental Economics and Policy; Land Economics/Use. Ano: 2003 URL: http://purl.umn.edu/58271 ACT Now or Later: The Economics of Malaria Resistance AgEcon Laxminarayan, Ramanan. In the past, malaria control efforts in sub-Saharan Africa have relied on a combination of vector control and effective treatment using chloroquine. With increasing resistance to chloroquine, attention has now turned to alternative treatment strategies to replace this failing drug. Although there are strong theoretical arguments in favor of switching to more expensive artemisinin-based combination treatments (ACTs), the validity of these arguments in the face of financial constraints has not been previously analyzed. In this paper, we use a Bioeconomic model of malaria transmission and evolution of drug resistance to examine questions of optimal treatment strategy and coverage when drug resistance places an additional constraint on choices available to the... Tipo: Working or Discussion Paper Palavras-chave: Malaria; Mathematical models; Drug resistance; Bioeconomics; Health Economics and Policy; I10; I19; C61. Ano: 2003 URL: http://purl.umn.edu/10699 The foraging economics of honey bees in almonds AgEcon Champetier, Antoine. We develop a model of honey bee foraging behavior that can be used to simulate crop yields as functions of honey bee densities. These yield functions help us understand the economic behavior of growers who rely on bees for pollination. One important simulation result for the case of almonds is that the production function facing growers is close to one of fixed proportion in pollination input. Accordingly, the modeling of the foraging behavior of bees provides an explanation for the observed lack of variation in pollinator use and shows how the behavior of bees and growers are connected. Tipo: Conference Paper or Presentation Palavras-chave: Pollination economics; Honey bee foraging; Bioeconomics; Crop Production/Industries; Environmental Economics and Policy; Livestock Production/Industries. Ano: 2011 URL: http://purl.umn.edu/103554 Marine Reserves: Is There a Free Lunch? AgEcon Sanchirico, James N.; Wilen, James E.. This paper employs a spatial and intertemporal model of renewable resource exploitation to investigate the effects of marine reserve creation. The model combines the H. S. Gordon/Vernon Smith hypothesis of a rent dissipation process with Ricardian notions that resources are exploited across space in a pattern dependent upon relative profitabilities. The metapopulation model employed here incorporates modern biological ideas that stress patch heterogeneity, linkages, and dispersal processes between patches. The spatial bioeconomic model is then used to simulate the effects of reserve creation under various ecological structures. We find, under certain parameter configurations and ecological linkages, that there is potential for a "double-dividend" where... Tipo: Working or Discussion Paper Palavras-chave: Marine reserves; Spatial and intertemporal modeling; Bioeconomics; Resource /Energy Economics and Policy; C62; Q22; R10. Ano: 1998 URL: http://purl.umn.edu/10715 MANAGEMENT STRATEGIES FOR INDONESIAN SMALL-HOLDER RUBBER PRODUCTION IN SOUTH SUMATRA: A BIOECONOMIC ANALYSIS AgEcon Purnamasari, Ririn S.; Cacho, Oscar J.; Simmons, Phil. A simplified version of the BEAM Rubber Agroforestry Model is embedded in a dynamic economic model to examine the impact of uncertainty about prices and climate on decision variables. Solutions, in terms of optimal levels for decision variables are found using a Monte Carlo stochastic framework. These solutions were used to derive risk-efficient frontiers corresponding to different levels of the decision variables. The results underline the importance of including uncertainty in dynamic bioeconomic systems since profits under uncertainty turned out to be quite different from those obtained with prices and climate assumed to be constant. Tipo: Working or Discussion Paper Palavras-chave: Bioeconomics; Stochastic analysis; Rubber; Indonesia; Production Economics; Risk and Uncertainty. Ano: 1999 URL: http://purl.umn.edu/12936 Heterogeneity among agent types and second-best management for non-market ecological services AgEcon Fenichel, Eli P.. Second-best management affects different agent types differently, and heterogeneity among agents may create instances when only second best management is feasible. Capital-theoretic bioeconomic modeling often has imposed representative agent assumptions that may not capture this heterogeneity. Interactions between agent heterogeneity and second-best management have received little attention. Such heterogeneity is particularly important when management actions do not directly affect extensive margin decisions. We employ a microparameter model in a dynamic bioeconomic model to incorporate agent heterogeneity and intensive and extensive margin decisions for a nonmarket good, recreational fishing. The model yields qualitatively different management... Tipo: Conference Paper or Presentation Palavras-chave: Entry-exit; Microparameter; Bioeconomics; Recreational fishing; Landing limits; Optimal control; Resource /Energy Economics and Policy; Q20; Q22; Q26. Ano: 2009 URL: http://purl.umn.edu/48995 OPTIMAL MANAGEMENT OF GIANT-CLAM FARMING IN SOLOMON ISLANDS AgEcon Hean, Robyn L.; Cacho, Oscar J.. Giant-clam farming is undertaken by coastal villagers in Solomon Islands as part of a research and development project of the International Center for Living Aquatic Resources Management (ICLARM). The production technology is simple and does not require a large capital investment. The main inputs are clam seed, labour and time. Labour is used for activities such as seeding, cleaning, thinning and harvesting. In this paper, a bioeconomic model is used to explore optimal farm management. The theoretical basis for this analysis is found in the economic theory of optimal forestry exploitation. The management variables considered are husbandry applied to cleaning and the frequency with which thinning is undertaken. The optimal cycle-length is determined... Tipo: Working or Discussion Paper Palavras-chave: Bioeconomics; Giant clams; Subsistence mariculture; Farm Management. Ano: 1999 URL: http://purl.umn.edu/12935 Protected areas in fisheries: a two-patch, two-species model AgEcon Greenville, Jared W.; MacAulay, T. Gordon. The use of marine protected areas as a fishery management tool has been suggested as a hedge against management failures and variation in harvests. A stochastic bioeconomic model of a hypothetical predator–prey fishery is used to test the performance of protected areas in a fishery with heterogenous environments. Protected areas are analysed under density-dependent and sink-source dispersal relationships between the subpopulations that occur within the fishery. Differing management structures governing resource extraction are analysed. The focus of the study is placed on the biological and management characteristics that yield benefits to both fishers and society. It is shown that the establishment of a protected area improves fishery rent and lowers... Tipo: Journal Article Palavras-chave: Bioeconomics; Fisheries management; Marine protected areas; Resource /Energy Economics and Policy. Ano: 2006 URL: http://purl.umn.edu/116924 Registros recuperados: 28 Primeira ... 1 2 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco