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Registros recuperados: 60
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Environmental Targets and Shadow Prices of Bad Outputs in Organic and Conventional Farming AgEcon
Huhtala, Anni; Marklund, Per-Olov.
We present a framework for deriving shadow prices for negative environmental impacts regulated in agriculture. The shadow prices can be used as indicators of the costs of environmental regulation imposed as reflected in alternative farming technologies adopted. We illustrate our analytical findings with implications of the Finnish water protection policy measures on conventional and organic livestock farms over the period 1994-2002. Generally, the representative organic farm is found to be more technically efficient relative to its own technology than is the conventional representative farm. However, there is no statistical indication of a difference between these two particular representative farms in valuing the costs of undesirable output (manure) at...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental performance; Technology choices; Nutrient surplus; Environmental Economics and Policy; H23; C21; Q12; Q21.
Ano: 2005 URL: http://purl.umn.edu/24575
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Estimating Carbon Supply Curves for Global Forests and Other Land Uses AgEcon
Sedjo, Roger A.; Sohngen, Brent; Mendelsohn, Robert.
This study develops cumulative carbon 'supply curves' for global forests utilizing an dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and particular time points within that century, the curves are not traditional Marshallian supply curves or steady-state supply curves. Rather, the focus is on cumulative carbon cost curves (quasi-supply curves) at various points in time over the next 100 years. The research estimates a number of long-term, cumulative, carbon quasi-supply curves under different price scenarios and for different time periods. The curves trace out the relationship between an intertemporal price path for carbon, as given by carbon shadow prices, and the cumulative carbon...
Tipo: Working or Discussion Paper Palavras-chave: Carbon supply curves; Sequestration; Timber; Forests; Model; Global warming; Prices; Markets; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2001 URL: http://purl.umn.edu/10663
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Estimating Urban Residential Water-Demand with Increasing Block Prices: The Case of Perth, Western Australia AgEcon
Xayavong, Vilaphonh; Burton, Michael P.; White, Benedict.
This study uses panel data at suburb level to estimates the elasticity water demands in Perth, Australia from 1995 to 2005. After deriving the consumer’s water demand under a non-linear budget constraint, we estimate the water demand model, which accounts for how water (and other purchased goods) is used to satisfy fundamental desires of the household. We have applied the specification of price that provided the correctly estimated marginal price from the block tariff structure, and employed a maximum likelihood estimation technique to tackle the endogeneity and heteroskedasticity issues. Our estimation of water demand price elasticities are slightly higher (more elastic) than previous study in Perth, but broadly in line with other estimates in the...
Tipo: Working or Discussion Paper Palavras-chave: Water demand; Water pricing; Block pricing; Water resource management; Household model; Resource /Energy Economics and Policy; Q21; Q25; Q23.
Ano: 2007 URL: http://purl.umn.edu/7061
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Estimating Urban Residential Water-Demand With Increasing Block Prices: The Case of Perth, Western Australia AgEcon
Xayavong, Vilaphonh; Burton, Michael P.; White, Benedict.
This study uses panel data at suburb level to estimates the elasticity water demands in Perth, Australia from 1995 to 2005. After deriving the consumer’s water demand under a non-linear budget constraint, we estimate the water demand model, which accounts for how water (and other purchased goods) is used to satisfy fundamental desires of the household. We have applied the specification of price that provided the correctly estimated marginal price from the block tariff structure, and employed a maximum likelihood estimation technique to tackle the endogeneity and heteroskedasticity issues. Our estimation of water demand price elasticities are slightly higher (more elastic) than previous study in Perth, but broadly in line with other estimates in the...
Tipo: Conference Paper or Presentation Palavras-chave: Water demand; Water pricing; Block pricing; Water resource management; Household model; Demand and Price Analysis; Resource /Energy Economics and Policy; Q21; Q25 and Q23.
Ano: 2008 URL: http://purl.umn.edu/6010
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Fisheries and Aquaculture in the Lagoon of Orbetello AgEcon
Martino, S..
This paper is an introductory note on the lagoon of Orbetello, defining its environmental peculiarities and productive capacity. The aquaculture firms (both extensive and intensive) and their markets are presented from an economic point of view, focusing on the importance which the area can have as a district, according to the national and regional framework on fisheries. In particular, the unitary strategy adopted in managing the fishery involves the resolution of environmental problems and the coordination of trade to compete with products imported from other Mediterranean countries.
Tipo: Conference Paper or Presentation Palavras-chave: Fisheries and aquaculture management; Orbetello lagoon; Livestock Production/Industries; Q21; Q22.
Ano: 2005 URL: http://purl.umn.edu/56084
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Forest Carbon Sequestration: Some Issues for Forest Investments AgEcon
Sedjo, Roger A..
A major problem being faced by human society is that the global temperature is believed to be rising due to human activity that releases carbon dioxide to the atmosphere; i.e., global warming. The major culprit is thought to be fossil fuel burning, which is releasing increasing amounts of carbon dioxide in the atmosphere. The problem of increasing atmospheric carbon dioxide can be addressed a number of ways. One of these is forestry and forest management. This paper examines a number of current issues related to mitigating the global warming problem through forestry. First, the overall carbon cycle is described, and the potential impact of forests on the buildup of atmospheric carbon is examined. A major focus is the means by which forests and forest...
Tipo: Working or Discussion Paper Palavras-chave: Forests; Carbon; Sinks; Sequestration; Forest management; Kyoto Protocol; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2001 URL: http://purl.umn.edu/10571
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Forestry Sequestration of CO2 and Markets for Timber AgEcon
Sedjo, Roger A.; Sohngen, Brent.
Forestry has been considered to have potential in reducing the atmospheric concentration of carbon dioxide by sequestrating carbon in above-ground timber and below-ground roots and soil. This potential has been noted in the Kyoto Protocol, which identified specific forestry activities for which carbon sequestration credits could be obtained. To date, a few forestry efforts have been undertaken for carbon purposes, but most of these efforts have been on a small scale. Proposals have been under discussion, however, that would result in the creation of very large areas of new forest for the purpose of offsetting some of the additional carbon that is being released into the atmosphere. Concerns are expressed, however, that large-scale sequestration operations...
Tipo: Working or Discussion Paper Palavras-chave: Carbon; Forests; Sequestration; Leakages; Timber markets; Prices; Models; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2000 URL: http://purl.umn.edu/10778
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High-Grading in a Quota-Regulated Fishery, with Empirical Evidence from the Icelandic Cod Fishery AgEcon
Kristofersson, Dadi; Rickertsen, Kyrre.
Fishers in quota-regulated fisheries find it to their advantage to discard less valuable fish at sea to increase the value of their catch. A theoretical model describing the high-grading behavior of fishers is presented, and an empirical model is derived as well as a testing strategy to test for high-grading and to estimate the discarded amount of each grade. The model is applied to data for the Icelandic quota regulated cod fishery during the period September 1998 to June 2001. The results indicate that highgrading occurs in the Icelandic cod fishery for both long-line and net vessels. However, the discard rates are small, and the results clearly suggest that the ban on discards in Iceland has effectively dealt with high-grading. The estimated discard...
Tipo: Conference Paper or Presentation Palavras-chave: ITQ's; Highgrading; Empirical estimation; Resource /Energy Economics and Policy; Q21; Q22; C12.
Ano: 2005 URL: http://purl.umn.edu/24722
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Highly Pathogenic Avian Influenza Impacts on Japan’s Import Demand for Cooked and Uncooked Poultry, Beef, Pork, and Other Meats AgEcon
Taha, Fawzi A.; Hahn, William F..
First developed meat import demand system, disaggegating poultry meat into two products, cooked poultry (safe)and uncooked poultry meat (less safe). The model includes, beef, pork, and other meats as well.
Tipo: Conference Paper or Presentation Palavras-chave: CBS model; Highly Pathogenic Avian Influenza (HPAI); BSE; Meat import demand system; Cooked poultry; Uncooked poultry; Beef; Pork; Other meats; Structural change; Japan; Agricultural and Food Policy; Health Economics and Policy; International Relations/Trade; Livestock Production/Industries; Research Methods/ Statistical Methods; Q17; Q18; Q21.
Ano: 2011 URL: http://purl.umn.edu/103853
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Information on sellers and buyers characteristics: added value to explain price formation at primary fish markets in managed French scallop fisheries ArchiMer
Lesur-irichabeau, Gabrielle; Guyader, Olivier; Fresard, Marjolaine; Leroy, C.; Latouche, K.; Le Grel, L..
The aim of this article is to explore, through a hedonic approach, the factors that might explain the price variability for the French-managed fishery of scallop at primary fish markets. In addition to factors classically identified in the current literature like intrinsic product characteristics or markets situation, the characteristics of operators are tested. The relationships of loyalty between sellers and buyers, and market assiduity are notably considered.
Tipo: Text Palavras-chave: Buyer and seller characteristics; Fisheries management; Hedonic price; Market behaviour; Market structure; Scallop; Q21; Q22; Q28; C10; L11.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00301/41252/40442.pdf
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Integrating Multifunctionality of Agriculture in Regional Land Use Concepts AgEcon
Ahrens, Heinz; Kantelhardt, Jochen.
Because of high population density in Europe agriculture cannot define its aims on its own but has to take account of quite a number of demands from different actors. For instance, agriculture is expected to produce food and at the same time to contribute to the protection of cultural landscapes and the maintenance of ecological services. However, land use concepts are often formulated ecology-oriented neglectingsocio-economic objectives and potential production responses of farmers. The present paper is aimed to illustrate how multi-criteria analysis can be used to transform a primarily ecology-oriented land use concept for an ecologically very sensitive region into a more integrative and comprehensive one that makes due allowance for socio-economic...
Tipo: Conference Paper or Presentation Palavras-chave: Multi-criteria analysis; Multifunctionality of agriculture; Regional land-use concepts; Land Economics/Use; Q21; Q51; Q59; R0.
Ano: 2006 URL: http://purl.umn.edu/25483
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Is Certification a Promising Way to Ensure Sustainable Resource Use? An Analysis Based on the Concept of 'Self-Enforcing Contracts' AgEcon
Lippert, Christian.
In the past decade several certification schemes have been developed in order to promote sustainable resource use, especially in foreign countries where it is impossible to rely on direct enforcement of process standards. Based on the concept of 'Self-Enforcing Contracts' a model is developed simulating the simultaneous market equilibrium for certified natural resource units and physically identical units produced without observing certain environmental standards. The model along with some empirical evidence from tropical forestry yields that very likely certification will fall short in ensuring sustainable resource use. Basic natural resource management has to be primarily steered by governments and administrations, not by market forces.
Tipo: Conference Paper or Presentation Palavras-chave: Renewable resources and conservation; Demand and supply; Resource /Energy Economics and Policy; Q21; B52; D62; K42; L14.
Ano: 2005 URL: http://purl.umn.edu/24563
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Landscape Assessment via Regression Analysis AgEcon
Arriaza Balmón, Manuel; Canas, Juan F.; Canas, Juan A.; Ruiz, Pedro; Gonzalez, Jose; Barea, Francisco.
This paper presents a methodology for assessing the visual quality of agricultural landscapes through direct and indirect techniques of landscape valuation. The first technique enables us to rank agricultural landscapes on the basis of a survey of public preferences. The latter weighs the contribution of the elements and attributes contained in the picture to its overall scenic beauty via regression analysis. The photos used in the survey included man-made elements, positive and negative, agricultural fields, mainly of cereals and olive trees, and a natural park. The results show that perceived visual quality increases, in decreasing order of importance, with the degree of wilderness of the landscape, the presence of well-preserved man-made elements, the...
Tipo: Conference Paper or Presentation Palavras-chave: Landscape assessment; Visual quality; Landscape elements; Landscape value; Land Economics/Use; H41; Q21; Q26.
Ano: 2005 URL: http://purl.umn.edu/24469
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Marginality and Restoration of Olive Plantations in Andalusia AgEcon
Arriaza Balmón, Manuel; Guzman, Jose R.; Nekhay, Olexandr; Gomez-Limon, Jose Antonio.
This paper presents the first results of the initial stages of a three years research project on optimization of the use of agricultural lands subject to risk of abandonment. After devising a physical marginality index for olive cultivation based on soil quality and slope, we estimate an approximate area of 200,000 hectares of marginal olive plantations in Andalusia. The risk of abandonment of these farmlands increases with the decoupling of the CAP subsidies and with the socio-economic characteristics of the production. The probable abandonment of these areas implies the negative consequences of wild forestation. We present some actions to minimize the negative effects of this process, being the use of grass cover and hedgerows, on an initial qualitative...
Tipo: Conference Paper or Presentation Palavras-chave: Land abandonment; Marginal olive groves; Biodiversity; Soil erosion and visual quality; Land Economics/Use; H41; Q21; Q26.
Ano: 2005 URL: http://purl.umn.edu/24603
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Measuring the Credit Risk of AgriBank Loans under the New Basel Capital Accord: A Logit Regression Approach AgEcon
Hennings, Enrique; Sherrick, Bruce J..
Tipo: Conference Paper or Presentation Palavras-chave: Financial Economics; Q21; G21.
Ano: 2007 URL: http://purl.umn.edu/9987
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Microeconomic and Geo-physical Data Integration for Agri-environmental Analysis, Georeferencing FADN Data: A Case Study in Italy AgEcon
Fais, Andrea; Nino, Pasquale; Giampaolo, Antonio.
The authors, inside a TAPAS action, have developed a methodology - based on the integration between FADN data with statistical, administrative and cartographic information - to improve the production of statistical data related to agricultural policies impact on land and environment. This methodology allows - using Geographic Information System (GIS) technology - to produce and organise data at geographical level. Data spatially referenced respond to the specific needs of agri-environmental analysis and problems, mostly related to specific areas (environmental vulnerability areas), inside defined boundaries (e.g. river basin). The GIS is implemented with several cartographic layers (Topographic and cadastral maps, land use, soils, water sources, climate,...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural statistics; Agri-environment; FADN; GIS; TAPAS; DPSIR; Environmental Economics and Policy; C81; O13; Q21.
Ano: 2005 URL: http://purl.umn.edu/24547
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Mixed Crop Livestock Farming Incorporating Agroforestry Orchards Facing the New Cap AgEcon
Ducros, Denis; Kephaliacos, Charilaos; Ridier, Aude.
In the context of the new CAP, decoupling subsidies from production should incite farmers to reorganize their production systems, particularly through diversification opportunities. In this paper we focus our analysis on the conditions that could permit the development of extensive orchards by modelling mixed crop livestock farms, which incorporate orchards. A mathematical programming model is built to simulate various intensification levels characterizing different technical pathways within the different farm activities (cattle breeding, forage fields, arboriculture). This model also enables us to take into account some environmental indicators related to these pathways. Moreover, the method illustrates technical complementarities existing within the...
Tipo: Conference Paper or Presentation Palavras-chave: Decoupling; Diversification; Agroforestry orchards; Joint production; Mathematical programming; Agribusiness; C61; D24; Q12; Q21.
Ano: 2005 URL: http://purl.umn.edu/24532
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Modelling Organic Farming at Sector Level – An Application to the Reformed CAP in Austria AgEcon
Schmid, Erwin; Sinabell, Franz.
We analyse whether the 2003 CAP reform and the anticipated new program of rural development will lead to an expansion or a reduction of organic farming. An extended version of the Positive Mathematical Programming (PMP) method is developed in order to differentiate organic farming from conventional and other agri-environmental management practices in a sector model. Austria is chosen for the case study because 8 % of its farmland are managed organically, and detailed data on alternative management practices are available. The results suggest that the recent agricultural policy reforms will make organic farming more attractive for farmers, given the price premiums relative to conventional products will remain at observed levels.
Tipo: Conference Paper or Presentation Palavras-chave: Organic farming; Common Agricultural Policy; Program for Rural Development; Agricultural sector modelling; Agricultural and Food Policy; Farm Management; Q11; Q18; Q21.
Ano: 2006 URL: http://purl.umn.edu/25300
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Models Needed to Assist in the Development of a National Fiber Supply Strategy for the 21st Century: Report of a Workshop AgEcon
Sedjo, Roger A.; Goetzl, Alberto.
This discussion paper reports on a Workshop on Wood Fiber Supply Modeling held October 3-4, 1996 in Washington, DC. The purpose of this discussion paper is to provide an overview of some of the modeling work being done related to timber supply modeling and some of the issues related to the more useful application of wood fiber supply and projections models. This paper includes brief presentations of three commonly used long-term timber projections and forecasting models: the Timber Assessment Market Model (TAMM) of the Forest Service; the Cintrafor Global Trade Model (CGTM) of the University of Washington; and the Timber Supply Model (TSM) of Resources for the Future. Also, issues related to the useful of the models are addressed as well as a discussion of...
Tipo: Working or Discussion Paper Palavras-chave: Timber models; Market forecasting models; Wood fiber supply; Projections; Resource /Energy Economics and Policy; C62; Q21; Q23.
Ano: 1997 URL: http://purl.umn.edu/10486
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Nutrient Best Management Practice Insurance and Farmer Perceptions of Adoption Risk AgEcon
Mitchell, Paul D..
This paper explores the effect farmer perceptions concerning how best management practice (BMP) adoption changes the profit distribution have on BMP adoption incentives and the potential for insurance to increase these incentives. Adoption indifference curves illustrate the effect of farmer perceptions on BMP adoption incentives and the potential for insurance to expand the set of perceptions consistent with adoption. Empirical analysis quantifies these conceptual results for nutrient BMP insurance, a new policy available to corn farmers as part of a USDA-Risk Management Agency pilot program in four states. Results indicate that nutrient BMP insurance can have economically relevant effects on farmer adoption incentives.
Tipo: Journal Article Palavras-chave: Adoption indifference curves; Crop insurance; Fertilizer; Green insurance; D8; Q12; Q16; Q21.
Ano: 2004 URL: http://purl.umn.edu/43460
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