|
|
|
| Registros recuperados: 176 | |
|
|
| Armbruster, Walter J.. |
| Economic and environmental challenges in the global economy raise significant issues that require public policy and private sector attention over the next decade. Price volatility, invasive species, sustainable biofuels production, and climate change all affect our agricultural and resource base and its future. Agricultural and resource economists must provide analyses of public policy and private sector strategies based on innovative research that integrates insights across disciplinary boundaries. Proactive communication of the results to decision makers can make a difference in how these important societal issues are addressed and help to shape the future. |
| Tipo: Journal Article |
Palavras-chave: Economics; Environment; Policy research; Communication; Agricultural and Food Policy; Resource /Energy Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49860 |
| |
|
| |
|
|
| Freyer, Bernhard; Eder, Michael; Schneeberger, Walter; Darnhofer, Ika; Kirner, Leopold; Lindenthal, Thomas; Zollitsch, Werner. |
| Until now, organic farming in Austria saw its largest growth in the period between 1994 and 1998. The following factors all contributed to Austria achieving the highest percentage of organic farms in Europe: the early addition of guidelines for organic crop production and animal husbandry to the Austrian Codex Alimentarius, the government support for organic farms during and after conversion through compensatory payments, favourable market conditions through the entrance of supermarket chains, the establishment of a marketing company, an active policy by the organic associations and the development of advisory services. However, this dynamic development has not persisted in the late nineties. Whether the crises in conventional production will provide... |
| Tipo: Journal Article |
Palavras-chave: Organic farming; Production; Economics; Market; Conversion; Direct payments; Prices; Agricultural and Food Policy; Demand and Price Analysis; Environmental Economics and Policy; Farm Management. |
| Ano: 2001 |
URL: http://purl.umn.edu/98995 |
| |
|
| |
|
| |
|
|
| Ott, Stephen L.. |
| Due to a lack of national information about cull dairy cows, the USDA's National Animal Health Monitoring System (NAHMS) Dairy '96 Study investigated culling management practices. Operations included in the study represented 83.1 percent of U.S. milk cows. Most dairy cows were culled for reasons associated with their inability to profitably produce high-quality milk and calves; reasons for culling were not usually related to ill health or systemic disease. Results showed that almost all cull dairy cows in the US are intended for beef slaughter, as only about 4.4 percent were sent to other dairy operations. Nearly 77 percent of cows intended for beef slaughter were sent to markets, auctions, and sale barns, while 22 percent were sent straight to slaughter... |
| Tipo: Report |
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Production; Economics; Culling; Transportation; Milk; Marketing; Disease; Slaughter condemnation; Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/45494 |
| |
|
|
| Chalak, Morteza; Ruijs, Arjan; Hemerik, Lia; van der Werf, Wopke; van Ierland, Ekko C.. |
| Natural enemies such as herbivores that are introduced to reduce invasive plants can spill over into nature, threaten indigenous species and impose significant costs. We develop a bioeconomic model to analyse the optimal control management strategy of an introduced herbivore that has spilled over from a managed system to a natural area. Cost-effective control strategies are analysed that reduce the spillover effects of herbivores on endangered plants species to reduce the risk of extinction and increase benefits obtained from the ecosystem. We consider two competing indigenous plant species as the representatives of the plant community. Only one of these species is consumed by introduced herbivore. We show that the optimal level of controlling herbivores... |
| Tipo: Presentation |
Palavras-chave: Economics; Biological agent; Externality; Spillover; Control; Environmental Economics and Policy. |
| Ano: 2012 |
URL: http://purl.umn.edu/124374 |
| |
|
| |
|
| |
|
|
| Wineland, Nora. |
| In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states. The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were 82,040 operations with sheep as of 1995;... |
| Tipo: Report |
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/32743 |
| |
|
| |
|
| |
|
| |
|
|
| Conrad, Jon M.; Bjorndal, Trond. |
| There is now strong scientific evidence that several species of baleen whale and possibly the sperm whale, have recovered to levels that would support commercial harvest. The stock of fin whales (Balaenoptera physatus) off the eastern coast of Iceland and the minke whale (Balaenoptera acutorostrata) in the Northeast Atlantic, off the coast of Japan and in the Southern Ocean are prime candidates for commercial harvest. Should commercial whaling be resumed? If so, what role should economics play in determining the level of harvest and management policies? A bioeconomic model for baleen whales is developed and applied to the stock of minke whales in the Northeast Atlantic. A delay-difference equation is used to model the population dynamics and an... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Economics; Whaling; Rnlnke abide; Resource /Energy Economics and Policy. |
| Ano: 1991 |
URL: http://purl.umn.edu/7269 |
| |
|
|
| Blackman, Allen; Mathis, Mitchell; Nelson, Peter. |
| Although ignored for decades, environmental issues now attract considerable attention in the literature on economic development. This paper describes research on environmental issues in seven topic areas that historically have been at the heart of development economics: the role of the state, economic growth, trade and industrialization, relations between rich and poor countries, structural adjustment and stabilization, population change, and the objectives and strategies of development. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environment; Development; Economics; Literature review; International Development; B20; N01; O1; O13; Q20. |
| Ano: 2001 |
URL: http://purl.umn.edu/10662 |
| |
|
| |
|
|
| Chalak-Haghighi, Morteza; Pannell, David J.. |
| Weeds can cause significant problems to natural ecosystems. Although there have been numerous studies on the economics of weed control, relatively few of these studies have focused on natural ecosystems. This paper addresses this gap in the literature by assessing the cost-effectiveness of a comprehensive range of control strategies for blackberry (Rubus anglocandicans) in natural environments in Australia. We developed a stochastic dynamic simulation model and a deterministic dynamic optimisation model. The stochastic model calculates the expected net present value (NPV) of a range of control strategies, including any combination of treatment options. The optimisation model identifies the treatment combination that maximises NPV. Both models represent the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environment; Economics; Weed; Stochastic; Optimisation; Management; Environmental Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/58886 |
| |
|
| |
|
|
| Thirtle, Colin G.; Srinivasan, Chittur S.; Heisey, Paul W.. |
| Intellectual property protection, globalization, and pressure on public budgets in many industrialized countries have shifted the balance of plant breeding activity from the public to the private sector. Several economic factors influence the relative shares of public versus private sector plant breeding activity, with varying results over time, over country, and over crop. The private sector, for example, dominates corn breeding throughout the industrialized world, but public and private activities in wheat breeding differ widely in Western Europe, different regions of the United States, Canada, and Australia. Public sector involvement in plant breeding may have benefits to society that the private sector's activities may not, fostering greater sharing of... |
| Tipo: Report |
Palavras-chave: Plant breeding; Economics; Public sector; Private sector; Research policy; Biotechnology; Intellectual property; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2001 |
URL: http://purl.umn.edu/33775 |
| |
|
|
| Ott, Stephen L.. |
| The National Animal Health Monitoring System (NAHMS) Beef '97 Study collected data on the marketing practices of 2,713 beef cow-calf producers representing 85.7% of all beef cows as of January 1, 1997, in 23 leading cow-calf states. Of the operations included in the study, 67.4% sold steer calves, and 52.1% sold heifer calves for slaughter in the year preceding the study. By number of operations, auction was the most common method of selling steers (84.9% of operations) and private treaty was the second most popular marketing method (10.4% of operations). By number of steers sold, private treaty was the most common marketing method. For operations selling either steer or heifer calves, smaller operations were more likely to use auctions as a marketing... |
| Tipo: Report |
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Epidemiology; Economics; Marketing; Management; Weaning; Auctions; Income; Forward pricing; Futures contracts; Livestock Production/Industries. |
| Ano: 1998 |
URL: http://purl.umn.edu/32793 |
| |
| Registros recuperados: 176 | |
|
|
|
