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A review of Multi-Agent Simulation Models in Agriculture AgEcon
Kaye-Blake, William; Li, Frank Y.; Martin, A. McLeish; McDermott, Alan; Neil, Hayley; Rains, Scott.
Multi-Agent Simulation (MAS) models are intended to capture emergent properties of complex systems that are not amenable to equilibrium analysis. They are beginning to see some use for analysing agricultural systems. The paper reports on work in progress to create a MAS for specific sectors in New Zealand agriculture. One part of the paper focuses on options for modelling land and other resources such as water, labour and capital in this model, as well as markets for exchanging resources and commodities. A second part considers options for modelling agent heterogeneity, especially risk preferences of farmers, and the impacts on decision-making. The final section outlines the MAS that the authors will be constructing over the next few years and the types of...
Tipo: Conference Paper or Presentation Palavras-chave: Multi-agent simulation models; Modelling; Agent-based model; Cellular automata; Decision-making; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Livestock Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/97165
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A Rising Tide of Anti-Animal Consumerism? Issues and Opportunities AgEcon
Rae, Allan N..
The livestock revolution that has occurred over the last few decades has seen a phenomenal increase in demand for livestock products in much of the developing world. This has largely been matched with growth in supplies, driven by government policies, and increased animal numbers and productivity. But this growth has been accompanied by a number of side-effects which in many cases impose negative externalities on society and suggest that current trends in animal product consumption are unsustainable. As a result there is emerging an anti-animal sentiment among some consumer groups. These people are concerned about livestock issues such as human health effects, biodiversity losses, deforestation, emissions to the air and water, diversion of grains from...
Tipo: Conference Paper or Presentation Palavras-chave: Livestock revolution; Diet transformation; Externalities; Opportunities; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Health Economics and Policy; Livestock Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/96940
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A RISK PROGRAMMING APPROACH TO DESIGNING CONTRACTS TO REDUCE NITRATE LEACHING AgEcon
Chu, Mei-Chin; Swinton, Scott M.; Batie, Sandra S..
As contractual agriculture expands, contract design offers a non-regulatory opportunity to reduce non-point source pollution. A risk programming analysis of seed corn contract designs illustrates a tractable empirical principal-agent model, and shows that grower risk preferences affect contract acceptability and efficiency at reducing nitrate leaching.
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy; Risk and Uncertainty.
Ano: 1997 URL: http://purl.umn.edu/11594
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A Safety Valve for Emissions Trading AgEcon
Stranlund, John K..
This paper considers the optimal design of an emissions trading program that includes a safety valve tax that allows pollution sources to escape the emissions cap imposed by the aggregate supply of emissions permits. I demonstrate that an optimal hybrid emissions trading/emissions tax policy involves a permit supply that is strictly less than under a pure emissions trading scheme and a safety valve tax that exceeds the optimal pure emissions tax as long as expected marginal damage is an increasing function. While the expected level of emissions under a hybrid policy may be more or less than under pure emissions trading or a pure emissions tax, under the assumption that uncertainty about aggregate marginal abatement costs is symmetric the most likely...
Tipo: Working or Discussion Paper Palavras-chave: Emissions Taxes; Emissions Trading; Uncertainty; Safety Valve; Hybrid Emissions Control; Environmental Economics and Policy; Public Economics; Risk and Uncertainty; L51; Q28.
Ano: 2009 URL: http://purl.umn.edu/53125
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A Scientific Review of the Impact of UK Ruminant Livestock on Greenhouse Gas Emissions AgEcon
Hopkins, Alan; Lobley, Matt.
Climate change is a subject of global environmental concern. The UK has seen a progressive strengthening of political resolve to address the problems associated with emissions of greenhouse gases (GHGs), principally carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Although agriculture globally, and ruminant livestock production in particular, is a net contributor to GHG emissions, generalizations about impacts on climate change often fail to distinguish between different systems of production, advances in technology, and the role of extensive grazing lands in contributing to ecological services and food production in situations where other forms of farming are impractical. Against this background, the overall aim of this review was therefore to...
Tipo: Report Palavras-chave: Climate Change; Ruminant Livestock; Greenhouse Gases; UK; Agricultural and Food Policy; Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/61030
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A Search Model for Joint Implementation AgEcon
Bella, Giovanni.
The aim of this paper is to present a search model in the field of environmental economics, where so-called clean and dirty producers enter the trading market, both looking for a partner with whom to exchange the goods they are endowed with. The model derived in this paper is rather simple. Nevertheless, it is able to produce a series of interesting results and useful insights, and is conveniently used here as a framework to explain the functioning of Joint Implementation programmes for polluting emissions’ reduction.
Tipo: Working or Discussion Paper Palavras-chave: Environmental economics; Search theory; Market failures; Environmental Economics and Policy; C61; O13; Q26.
Ano: 2009 URL: http://purl.umn.edu/54356
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A Selected Annotated BIBLIOGRAPHY of Economic Values of Fish and Wildlife and Their Habitats AgEcon
Leitch, Jay A.; Scott, Donald F..
Tipo: Technical Report Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1977 URL: http://purl.umn.edu/120941
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A Spatial Analysis of Conservation Reserve Program Participants: The Impact of Absenteeism on Participation Decisions AgEcon
Brady, Michael P.; Nickerson, Cynthia J..
Given that approximately half of all U.S. farmland is leased, absentee (non-operator) landowners have a significant role in agriculture. Because decisions about how to use farmland can be affected by ownership status, tenure can have far reaching implications for the production of food and fiber, as well as the extent to which environmentally sensitive farmland is cropped or is put into a conservation use. In order to better understand whether conservation participation decisions, and potential responses to factors such as commodity prices, may vary by tenure status, we exploit a unique dataset that identifies where participants associated with Conservation Reserve Program contracts live relative to the land enrolled. These data provide improved spatial...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy; Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/49369
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A spatial bio-economic modelling approach on the trade-offs between global bioenergy demand, agricultural intensification, expansion, and trade AgEcon
Lotze-Campen, Hermann; Popp, Alexander; Beringer, Tim; Muller, Christoph; Lucht, Wolfgang.
Increased future demands for food, fibre and fuels from biomass can only be met if the available land and water resources on a global scale are used and managed as efficiently as possible. The main routes for making the global agricultural system more productive are through intensification and technological change on currently used agricultural land, land expansion into currently non-agricultural areas, and international trade in agricultural commodities and processed goods. In order to analyse the trade-offs and synergies between these options, we present a global bio-economic modelling approach with a special focus on spatially explicit land and water constraints as well as technological change in agricultural production. For a given bioenergy demand...
Tipo: Conference Paper or Presentation Palavras-chave: Land use change; Spatial modelling; Technological change; Environmental Economics and Policy; International Development; International Relations/Trade; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; C61; F15; Q24; Q25.
Ano: 2009 URL: http://purl.umn.edu/51458
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A Spatial Econometric Analysis of Compliance with an International Environmental Agreement on an Open Access Resource AgEcon
Borsky, Stefan; Raschky, Paul A..
This paper provides an empirical analysis of the role of intergovernmental relations on a country's effort to enforce the objectives of an international environmental agreement on an open access resource. Intergovernmental interaction allows signatory countries to observe compliance behavior of other signees and to punish non-compliance by applying bi- and multilateral sanctions. We use a cross-sectional dataset that contains country level information about compliance with Article 7 of the 1995 UN Code of Conduct for Responsible Fisheries. Our identification strategy combines a spatial autoregressive model with spatial autoregressive disturbances and an instrumental variable approach. We find a strong positive effect of other countries' compliance on the...
Tipo: Presentation Palavras-chave: International environmental agreements; Open access resources; Spatial econometrics; Environmental Economics and Policy; C21; F53; Q22.
Ano: 2012 URL: http://purl.umn.edu/124425
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A Spatial Model of Dolphin Avoidance in the Eastern Tropical Pacific Ocean AgEcon
Hicks, Robert L.; Schnier, Kurt E..
This paper examines the impact of dolphin-safe eco-labeling and how it fundamentally altered the spatial distribution of fishing effort and fishermen's willingness to pay to avoid dolphins. To do this, a dynamic discrete choice econometric model is applied to the Eastern Tropical Pacific tuna fishery. This econometric approach combines a dynamic programming component with the static discrete site choice model. This estimator couples the current period projected profits associated with fishing a specific site with the value of all future location choices on the cruise, assuming choices are made optimally. The key feature of this model is that it recovers behavioral parameters and solves the dynamic programming problem recursively. The dynamic site...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/21290
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A Spatiotemporal Fixed Effects Estimation of U.S. State-Level Carbon Dioxide Emissions AgEcon
Burnett, J. Wesley; Bergstrom, John C..
One of the major shortcommings of past environmental Kuznets curve (EKC) studies is that the spatiotemporal aspects within the data have largely been ignored. By ignoring the spatial aspect of pollution emissions past estimates of the EKC implicitly assume that a region’s emissions are unaffected by events in neighboring regions (i.e., assume there are no transboundary pollution emissions between neighbors). By ignoring the spatial aspects within the data several past estimates of the EKC could have generated biased or inconsistent regression results. By ignoring the temporal aspect within the data several past estimates of the EKC could have generated spurious regression results or misspecified t and F statistics. To address this potential...
Tipo: Conference Paper or Presentation Palavras-chave: Pollution Economics; Environmental Kuznets Curve; Spatial Econometrics; Dynamic Panel Data; Carbon Dioxide Emissions; Global Climate Change; Environmental Economics and Policy; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; C33; C51; Q43; Q50; Q53; Q58.
Ano: 2011 URL: http://purl.umn.edu/103580
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A SPLIT-SAMPLE TEST OF EXPERIMENTAL DESIGNS FOR STATED CHOICE MODELS OF ENVIRONMENTAL VALUATION AgEcon
Lupi, Frank; Kaplowitz, Michael D.; Hoehn, John P..
A stated choice model is used to estimate wetland mitigation preferences. In a split sample mail survey, a main effects design is compared to a randomized design. Although randomized designs estimate main effects less efficiently, several policy relevant interactions were found to be significant, suggesting some merits of randomized designs.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/22073
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A Statistical Profile of the Pork Supply Chain AgEcon
Bonti-Ankomah, Samuel.
The agriculture and agri-food sector faces a number of challenges such as rapid technological change, increased competition and changes in consumer requirements. The sector therefore needs to adjust to keep up with the changes and become more competitive. This report provides information about the pork supply chain and highlights the structural changes that have occurred over time in the pork industry. The report uses tables, charts and figures to describe performance indicators and structural changes within the industry and shows that the Canadian pork supply chain is healthy, growing and export-oriented.
Tipo: Dataset Palavras-chave: Agricultural supply chain; Market demands; Performance indicators; Agribusiness; Agricultural and Food Policy; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Marketing; Production Economics; Resource /Energy Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/55302
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A Stochastic Multiple Players Multi-Issues Bargaining Model for the Piave River Basin AgEcon
Sgobbi, Alessandra; Carraro, Carlo.
The objective of this paper is to investigate the usefulness of non-cooperative bargaining theory for the analysis of negotiations on water allocation and management. We explore the impacts of different economic incentives, a stochastic environment and varying individual preferences on players’ strategies and equilibrium outcomes through numerical simulations of a multilateral, multiple issues, non-cooperative bargaining model of water allocation in the Piave River Basin, in the North East of Italy. Players negotiate in an alternating-offer manner over the sharing of water resources (quantity and quality). Exogenous uncertainty over the size of the negotiated amount of water is introduced to capture the fact that water availability is not known with...
Tipo: Working or Discussion Paper Palavras-chave: Bargaining; Non-Cooperative Game Theory; Simulation Models; Uncertainty; Environmental Economics and Policy; C61; C71; C78.
Ano: 2007 URL: http://purl.umn.edu/7446
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A Structural Equation Model of Farmers Operating within Nitrate Vulnerable Zones (NVZ) in Scotland AgEcon
Toma, Luiza; Barnes, Andrew Peter; Willock, J.; Hall, Clare.
Structural Equation Modelling (SEM) offers a theoretical basis for developing an understanding of the relationships between attitudes and behaviour. This paper imposes the SEM framework to a compulsory regulation which focuses on reducing diffuse water pollution, namely Nitrate Vulnerable Zones (NVZ). We use a data set collected through a farm survey within NVZs in Scotland in 2007. The model includes six latent variables expressing farmers’ nitrate reducing behaviour, nitrate reducing and profit maximizing behavioural propensities and the underlying determining factors, namely attitude (risk perception) and socio-economic latent variables (access to information and stocking density). The results indicate that the model has an adequate fit to the data and...
Tipo: Conference Paper or Presentation Palavras-chave: Nitrate Vulnerable Zones; Structural equation modeling with latent variables; Scotland; Environmental Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/43643
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A STUDY OF COSTS OF COMPLIANCE RELATED TO NON-POINT POLLUTION RULES FOR WISCONSIN CROP PRODUCERS AgEcon
Fortenbery, T. Randall.
The non-point pollution rules proposed by the Wisconsin Department of Natural Resources (DNR) have generated questions regarding the costs of compliance for Wisconsin agriculture. It is clear that some agricultural practices will have to change if the proposed rules are enacted, but the costs of these changes are less clear. The DNR proposals include cost sharing for the introduction of best management practices, but constrain the cost share program to essentially out of-pocket expenses. In general, there is no compensation for costs associated with additional management time, or lost revenue. The purpose of this project is to generate a set of estimates relating to net costs of compliance for Wisconsin crop producers. The intent is to develop a baseline...
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy.
Ano: 2001 URL: http://purl.umn.edu/12639
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A Study of Iran’s Comparative Advantage in Saffron, the Red Gold AgEcon
Najarzadeh, Reza; Reed, Michael R.; Saghaian, Sayed H.; Aghaei, Mina; Rezagholizadeh, M..
Tipo: Report Palavras-chave: Crop Production/Industries; Environmental Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/61583
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A Study of the Impact of Ecotourism on Environmental Education and Conservation: The case of Turtle Watching at an Australian Site AgEcon
Tisdell, Clement A.; Wilson, Clevo.
The importance of environmental education as a component of ecotourism is highlighted. The extent of environmental education and its impact on attitudes to conservation of sea turtles and actions by ecotourists to support such conservation as a result of their visits to Mon Repos Conservation Park (Queensland), an important marine turtle rookery, is examined. To do this, results from 519 usable survey forms completed by ecotourists are analysed. It is found that a considerable amount of environmental education is obtained by visitors and that this has positive and statistically significant impacts on their desire to protect sea turtles and their intended actions to do so. The importance of the interaction of tourists with wildlife as a contributor to...
Tipo: Working or Discussion Paper Palavras-chave: Ecotourism; Environmental education; Sea turtles; Sustainable tourism; Wildlife conservation; Environmental Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/48365
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A SURVEY OF ANIMAL WASTE POLLUTION PROBLEMS ON U.S. DAIRY FARMS AgEcon
Buxton, Boyd M.; Cummins, David E..
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy; Livestock Production/Industries.
Ano: 1973 URL: http://purl.umn.edu/13350
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