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| Registros recuperados: 122 | |
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| Loftin, M. Kent; SynInt Inc.; CAMNet; kloftin@synint.com. |
| Managing large-scale water resources and ecosystem projects is a never ending job, and success should be measured in terms of achieving desired project performance and not just meeting prescriptive requirements of planning and constructing a project simply on time and within budget. Success is more than studying, planning, designing, or operating projects. It is developing the right plan, getting it implemented, and seeing that it is operated and performs properly. Success requires all of these, and failing any of these results in wasted resources and potential for doing great harm. Adaptive management can help make success possible by providing a means for solving the most complex problems, answering unanswered questions, and, in general, reducing... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Adaptive management; Ecosystem restoration; Governance; Implementation; Integrating risk and uncertainty; Performance; Project management; Resolutional sufficiency; Resolving uncertainties; Risk management; Stakeholders; Success; Uncertainty. |
| Ano: 2014 |
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| Failing, Lee; Compass Resource Management; lfailing@compassrm.com; Horn, Graham; ; ghorn@planit.bc.ca; Higgins, Paul; ; paul.Higgins@bchydro.bc.ca. |
| This paper provides an example of a practical integration of probabilistic policy analysis and multi-stakeholder decision methods at a hydroelectric facility in British Columbia, Canada. A structured decision-making framework utilizing the probabilistic judgments of experts, a decision tree, and a Monte Carlo simulation provided insight to a decision to implement an experimental flow release program. The technical evaluation of the expected costs and benefits of the program were integrated into the multi-stakeholder decision process. The framework assessed the magnitude of the uncertainty, its potential to affect water management decisions, the predictive ability of the experiment, the value of the expected costs and benefits, and the preferences of... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive management; Decision analysis; Expert judgment; Hydroelectricity; Multi-attribute evaluation; Multi-stakeholder consultation; Risk management; Value of information. |
| Ano: 2004 |
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| CRIPPA, M. E. N.; PEREIRA, S. E. M.; ROSSO, C. R. S. de; OLIVEIRA, B. P. de. |
| A Embrapa Meio Ambiente apresenta neste documento a estratégia que foi adotada para implantar a mentalidade de gestão de risco em seus processos internos. O objetivo inicial desta iniciativa foi o de atender aos requisitos da norma ABNT NBR ISO 9001:2015. Ela está integrada à iniciativa institucional de integração estratégica orientada a impactos, operacionalizada por meio do projeto especial "Integração estratégica orientada para impactos" (Projeto FOCUS), além de contemplar, em parte, os requisitos da política da Embrapa de gestão de riscos, integridade, conformidade e controles internos. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Administração de risco; Administração de Empresa; Planejamento Administrativo; Norma; Risk management. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123824 |
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| Armijo, Julien; Oerder, Vera; Auger, Pierre-amaël; Bravo, Angela; Molina, Ernesto. |
| In 2016, a massive harmful algal bloom (HAB) of Alexandrium catenella around Chiloé island caused one of the major socio-ecological crisis in Chilean history. This red tide occurred in two distinct pulses, the second, most anomalous, bursting with extreme toxicity on the Pacific coast, weeks after the highly controversial dumping off Chiloé of 4,700 t of rotting salmons, killed by a previous HAB of Pseudochattonella verruculosa. We study the transport of this pollution, analyzing the physical oceanographic conditions during and after the dumping. We find that a cyclonic gyre was present between the dumping site and the coast, visible in satellite altimetry and sea surface temperature data. Using Lagrangian simulations, we confirm that near-surface currents... |
| Tipo: Text |
Palavras-chave: Harmful algal blooms; Aquaculture; Pollution control; Ocean transport; Ecological crisis; Risk management. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00593/70486/69183.pdf |
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| Salles, Denis; Roumezi, Alexis; Lanceleur, Laurent; Schaefer, Jorg; Petit, Jerome; Blanc, Gerard; Coynel, Alexandra; Chiffoleau, Jean-francois; Auger, Dominique. |
| This article presents the results of multidisciplinary research (geochemistry, sociology) into the increasing concentrations of silver (Ag and nanoAg) in the environment and their potential impact on aquatic environments. We investigate simultaneously the risk of contamination of these environments by silver and the process of the social and political construction of this risk by water managers, health authorities, agencies and committees responsible for expert evaluations, environmental associations, and potential users of silver or nano-silver. Four updated models of risk construction allow us to understand the logic of arguments mobilized at this stage of the emerging risk. This interdisciplinary cooperation opens up possibilities for dealing with some... |
| Tipo: Text |
Palavras-chave: Environment; Estuaries; Geochemistry; Interdisciplinary communication; Nanotechnology; Risk assessment; Risk management; Silver; Sociology; Water pollutants. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00156/26736/24939.pdf |
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| Chinain, Mireille; Mahana Iti Gatti, Clémence; Ung, André; Cruchet, Philippe; Revel, Taina; Viallon, Jérôme; Sibat, Manoella; Varney, Patrick; Laurent, Victoire; Hess, Philipp; Taiana Darius, Hélène. |
| Ciguatera poisoning (CP) results from the consumption of seafood contaminated with ciguatoxins (CTXs). This disease is highly prevalent in French Polynesia with several well-identified hotspots. Rapa Island, the southernmost inhabited island in the country, was reportedly free of CP until 2007. This study describes the integrated approach used to investigate the etiology of a fatal mass-poisoning outbreak that occurred in Rapa in 2009. Symptoms reported in patients were evocative of ciguatera. Several Gambierdiscus field samples collected from benthic assemblages tested positive by the receptor binding assay (RBA). Additionally, the toxicity screening of ≈250 fish by RBA indicated ≈78% of fish could contain CTXs. The presence of CTXs in fish was confirmed... |
| Tipo: Text |
Palavras-chave: Ciguatera poisoning; French Polynesia; Gambierdiscus; Ciguatoxins; Epidemiology; Toxicological analyses; Risk management; Climate change. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00662/77362/78933.pdf |
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| Cowie,Annette L.; Downie,Adriana E.; George,Brendan H.; Singh,Bhupinder-Pal; Van Zwieten,Lukas; O'Connell,Deborah. |
| Biochar has the potential to make a major contribution to the mitigation of climate change, and enhancement of plant production. However, in order for biochar to fulfill this promise, the industry and regulating bodies must take steps to manage potential environmental threats and address negative perceptions. The potential threats to the sustainability of biochar systems, at each stage of the biochar life cycle, were reviewed. We propose that a sustainability framework for biochar could be adapted from existing frameworks developed for bioenergy. Sustainable land use policies, combined with effective regulation of biochar production facilities and incentives for efficient utilization of energy, and improved knowledge of biochar impacts on ecosystem health... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Life cycle assessment; Risk management; Sustainable land management. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500002 |
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| Berg, Ernst; Schmitz, Bernhard; Starp, Michael; Trenkel, Hermann. |
| The risks associated with farming activities are likely to increase in the future. It, therefore, appears worthwhile to analyse new risk management instruments. This paper investigates weather derivatives for which a market has already emerged in the USA. Contrary to traditional financial derivatives, their payoff is determined by future weather events, such as temperature or precipitation. Thus, they hedge risks which result from climate. Since they address production risks they are complementary to instruments that hedge price risks, such as future markets. The objective of the paper is to evaluate the economic impacts of weather derivatives and to assess their potential as farm level instruments of risk management. After outlining the main... |
| Tipo: Journal Article |
Palavras-chave: Weather derivatives; Weather risk; Risk management; Stochastic simulation; Financial Economics; Risk and Uncertainty. |
| Ano: 2005 |
URL: http://purl.umn.edu/97213 |
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| Dahlgran, Roger A.. |
| This study examines the effect of transaction frequency on profit and cash flow risk for firms that periodically purchase inputs, continuously transform inputs into outputs, and periodically sell output. Soybean-processing profit and cash flows are computed for unhedged, direct-hedged, and risk-minimizing-hedged processing with up to 52 transactions per year. Findings include: (a) higher transaction frequencies result in lower unhedged profit and cash flow risk and lower hedging effectiveness, (b) anticipatory hedging provides less risk protection than product-transformation hedging, (c) stabilizing cash flow stabilizes annual profits but the converse does not hold, and (d) hedging profits makes cash flow more variable. |
| Tipo: Journal Article |
Palavras-chave: Process hedging; Risk management; Soybean crushing; Agribusiness. |
| Ano: 2005 |
URL: http://purl.umn.edu/30985 |
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| Fortenbery, T. Randall. |
| This paper examines three invited papers focused on commodity prices. Public responses to high nominal commodity prices and perceived increases in price risk have ranged from attempts to assign blame, attempts to change contracting arrangements, and development of public policy that ‘‘protects’’ the market from future occurrences of unacceptable behavior. Interestingly, a result of increased commodity price volatility has suggested that futures markets no longer ‘‘work.’’ This is ironic given that futures markets initially came into existence as tools for managing the negative impacts of commodity price risk. In response to perceptions of market failure some are looking for strategies to regulate the who and how of futures trading. |
| Tipo: Journal Article |
Palavras-chave: Futures markets; Hedging; Price risk; Risk management; Speculation; Agribusiness; Agricultural Finance; Marketing; Risk and Uncertainty; G13; Q11; Q13; Q14. |
| Ano: 2009 |
URL: http://purl.umn.edu/53084 |
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| Elbehri, Aziz. |
| This report examines current trends in the U.S. grain industry. Many identity preservation(IP) grain systems have emerged recently, driven by a confluence of supply and demand factors. IP grain requirements for specific production protocols, marketing channels, and quality assurance depend on whether the crops are trait-specific, non-GM (genetically modified), organic, or pharmaceutical. Cost structures vary according to the relative importance of segregation and risk management. High information management, greater market coordination, and frequent reliance on contracts characterize IP grains. IP grain markets are also inherently riskier, with volatile supply, inelastic demand, and fluctuating price premiums. Increasing grain differentiation is altering... |
| Tipo: Report |
Palavras-chave: Identity preservation; Production differentiation; Specialty grain; Segregation cost; Traceability; Quality assurance; Grain attributes; Risk management; Information management; Crop Production/Industries. |
| Ano: 2007 |
URL: http://purl.umn.edu/7185 |
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| Wilson, William W.; Wagner, Robert; Nganje, William E.. |
| Price risk management problems confronting grain processors differ somewhat from conventional motives for hedging. There are two components of this problem that are addressed in this study. One is the competitive characteristics of the processing sector, the structure and conduct of which ultimately determines the relationship between input and output prices. In some cases, these are highly correlated and in others they are not. The second refers to the hedge horizon, or, how far forward a firm should cover its inevitable short cash positions. This study incorporates these two components of hedging into a mean-variance framework to evaluate how they impact price risk management decisions for processors. A theoretical model is developed which is then... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Hedging; Optimal hedge ratios; Food processors; Risk management; Marketing. |
| Ano: 2003 |
URL: http://purl.umn.edu/23637 |
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| Wang, Dabin; Tomek, William G.. |
| Descriptive statistics and time-series econometric models are used to characterize the behavior of monthly fluid milk prices. Prices in April, May and June appear to be more variable than those in subsequent months, and the spring-time prices are perhaps skewed. Econometric models can capture the historical behavior of spot prices, but forecasts converge to the marginal distribution of the sample prices in about six months. Futures prices for Class III milk have the expected time-to-maturity effect and converge to the respective monthly distributions of the cash prices at contract maturity (as they must, since the contracts are cash settled). Thus, econometric models and futures quotes provide similar information about price behavior at contract... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Hedging; Marketing strategies; Milk futures; Milk prices; Risk management; Risk and Uncertainty. |
| Ano: 2005 |
URL: http://purl.umn.edu/19322 |
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| Horobet, Alexandra; Dumitrescu, Sorin; Joldes, Cosmin. |
| The purpose of this paper is to provide an understanding of corporate risk management practices in Romanian companies, by investigating the risk management approaches Romanian companies take. Our main findings are that Romanian managers are not aware of the magnitude of exposure their companies have to various types of risk – hazard, operational, financial and strategic risks, while they are able to manage rather well all these risks, even the ones that have the lowest impact on the business. At the same time, risk management systems employed by Romanian companies are rather inarticulate and based on traditional approaches towards risk management, which might represent by itself a major source of risk, given the complexity of the business environment they... |
| Tipo: Journal Article |
Palavras-chave: Corporate risk assessment; Risk management; Romania; Agricultural and Food Policy; Productivity Analysis; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/53574 |
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| Berg, Ernst; Schmitz, Bernhard. |
| Recent and presumable future developments tend to increase the risks associated with farming activities. These include climate risks which have always played an important role in farming. Weather based instruments can be valuable tools to reduce the risk associate with unfavourable climatic events. However, a number of factors can limit the hedging effectiveness of these tools. These factors include basis risk, the impacts of remaining price uncertainty and diversification effects. The paper addresses the influence of each of these factors. In its final part an integrated approach for a comprehensive assessment of weather derivatives and other hedging instruments is proposed that is based on the concept of portfolio optimisation. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Downside risk; Portfolio optimisation; Risk management; Risk-value models; Weather derivatives; Risk and Uncertainty. |
| Ano: 2007 |
URL: http://purl.umn.edu/9269 |
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| Registros recuperados: 122 | |
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