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| Registros recuperados: 27 | |
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| Sohngen, Brent; Sedjo, Roger A.. |
| In this paper, we compare and contrast two types of timber models that have been used for public policy analysis. These models have been variously used to predict price, inventory and market welfare impacts under different exogenous forces that impact timber markets. The framework and theory for each model type is presented and discussed. We then thoroughly test the two model types across six potential exogenous shocks to timber markets, ranging from instantaneous demand shocks to gradual supply adjustments. Our comparison indicates that these models predict potentially important differences in timber market behavior. These differences are important to consider for those who do public policy analysis. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Timber markets; Models; Dynamic adjustment; Optimization; Resource /Energy Economics and Policy; C62; Q21; Q23. |
| Ano: 1996 |
URL: http://purl.umn.edu/10467 |
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| Sohngen, Brent; Mendelsohn, Robert; Sedjo, Roger A.. |
| Several papers have now estimated the impact of climate change on national timber markets, but few studies have measured impacts globally. Further, the literature on impacts has focused heavily on changes in productivity and has not integrated movements of biomes as well. Here, a dynamic model of ecological change and economic change is developed to capture the impact of climate change on world timber markets. Climate change is predicted to increase global timber production as producers in low-mid latitude forests react quickly with more productive short-rotation plantations, driving down timber prices. Producers in mid-high latitude forests, in contrast, are likely to be hurt by the lower prices, dieback, and slower productivity increases because of... |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2001 |
URL: http://purl.umn.edu/31044 |
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| Sedjo, Roger A.; Toman, Michael. |
| An RFF Workshop brought together experts from around the world to assess the feasibility of using biological sinks to sequester carbon as part of a global atmospheric mitigation effort. The chapters of this proceeding are a result of that effort. Although the intent of the workshop was not to generate a consensus, a number of studies suggest that sinks could be a relatively inexpensive and effective carbon management tool. The chapters cover a variety of aspects and topics related to the monitoring and measurement of carbon in biological systems. They tend to support the view the carbon sequestration using biological systems is technically feasible with relatively good precision and at relatively low cost. Thus carbon sinks can be operational. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Carbon; Sinks; Global warming; Sequestration; Forests; Environmental Economics and Policy; Q10; Q15; Q21; Q23; Q24. |
| Ano: 2001 |
URL: http://purl.umn.edu/10480 |
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| Sedjo, Roger A.; Swallow, Stephen K.. |
| International environmental and government organizations propose eco-labeling as a market incentive to cause industry to operate in an ecologically sustainable and biodiversity-friendly manner. A microeconomic analysis questions whether eco-labeling will cause producer profits in a competitive industry to decline, even under a voluntary system, and whether eco-labeling will necessarily generate different prices for labeled and unlabeled product. Using wood product as an example, results identify conditions that may exist when firms lose profits, even under a voluntary system, and where existing production constraints may lead to a single price, regardless of labeling. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Eco-labeling; Prices; Markets; Environmental Economics and Policy; D40; L10; L15. |
| Ano: 1999 |
URL: http://purl.umn.edu/10826 |
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| 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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| Daigneault, Adam J.; Sohngen, Brent; Sedjo, Roger A.. |
| This paper examines the competitiveness of the US timber industry under different exchange rate policies using a dynamic optimization model of global timber markets. We assume that exchange rates affect the cost structure of harvesting and managing forests and simulate the model for baseline conditions and four additional exchange rate policies. Two policies consider a strengthening United States dollar scenario and two policies examine weak South American currencies. Recently South America has increased its share of global timber production and is shipping increasing quantities of timber to the Unites States. The results indicate that US competitiveness in the forestry sector is sensitive both to strong US $ policies and to the weak currency policies... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: International Relations/Trade. |
| Ano: 2005 |
URL: http://purl.umn.edu/19439 |
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| 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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| Amano, Masahiro; Sedjo, Roger A.. |
| This report compares the approaches of the governments of Japan, Canada, and the European Union member countries toward using carbon sinks to meet their respective Kyoto Protocol carbon reduction targets. Various policies have been proposed by which governments can sequester carbon by promoting afforestation and reforestation, slowing deforestation, and undertaking forest management activities under Articles 3.3 and 3.4. At this time, carbon emissions reduction programs are still under development, both within individual countries and within the context of the protocol. Although some of the details have been worked out, concrete definitions are often still lacking, especially as regards impermanence of forests, additionality, leakage, and socioeconomic and... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Climate; Sinks; Kyoto Protocol; Forestry; Canada; Japan; European Union; Resource /Energy Economics and Policy; F01; Q23; Q28; Q48. |
| Ano: 2003 |
URL: http://purl.umn.edu/10913 |
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| Sedjo, Roger A.. |
| This paper maintains that the Forest Service (FS), as an institution, is in deep trouble. It argues that the FS today is an agency without a unique mission and without a supporting constituency. For the FS to be viable in the future it needs a distinct well-defined mission and a committed constituency. The distinct mission needs to be generally supported, or at least not opposed, by most of the American people. The constituency needs to be committed to the FS to the extent that it will provide major support in the Congress for FS budgets. The paper identifies some potential candidates for a mission for the National Forest System (NFS), e.g., as a biological reserve or as a provider of forest recreation. Another potential paradigm could be that of the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Forestry; Forest Service; Forest management; Federal lands; Resource /Energy Economics and Policy; H41; H42; Q23; Q26; Q28. |
| Ano: 1998 |
URL: http://purl.umn.edu/10690 |
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| 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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| Sedjo, Roger A.; Simpson, R. David. |
| There is considerable interest in biodiversity prospecting (the search for valuable new products from natural sources) as a conservation strategy. In an earlier paper, we have argued that the value of the marginal species (and, by extension, the incentives for the conservation of the habitat on which it is found) is small. In this paper, we show that investments in biodiversity prospecting are unlikely to increase incentives for conservation by much. If the value of the marginal species were appreciable, researchers ought already to have made investments to exploit it. If it is not, it is doubtful that additional investments will generate any substantial increase. It is important to be clear about our findings: we are not saying that none of the myriad... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Biodiversity; Biodiversity prospecting; Investment; Conservation policy; Environmental Economics and Policy; O13; Q29. |
| Ano: 1996 |
URL: http://purl.umn.edu/10821 |
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| Sedjo, Roger A.. |
| Governments often use fiscal, exchange rate, monetary policy as well as export promotion tax increases, privatization, and land reform as part of comprehensive adjustments packages for addressing economic imbalances, balance of payments, and structural weaknesses. Such approaches, however, have come under heavy criticism for failing to recognize the social and environmental costs associated with them. Critics have argued that economic growth, trade liberalization, and increased primary product exports increase pressure on many sectors, including the agricultural and forestry land use sectors. This paper examines a number of these types of external shocks. This paper makes two arguments. First, from a theoretical economic perspective, although in many cases... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Forests; Sustainability; Macroeconomics; Trade; Exchange rates; Structural adjustment; Resource /Energy Economics and Policy. |
| Ano: 2005 |
URL: http://purl.umn.edu/10458 |
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| Sedjo, Roger A.. |
| Marion Clawson passed away in April 1998 at the age of 92. He was a giant in the field of resource and environmental economics who devoted the last decade and one-half of his professional career to forest and forest related issues. He produced over 30 professional books and hundreds of papers. This paper presents a broad overview of his career as an economist, with a focus on his work in and influence on forestry and forest policy. From the early 1970s through to his last professional book in 1983, and his final professional contributions in the mid 1990s, Clawson devoted most of his professional efforts to forest issues. His influence on forests and forest policy was substantial, especially in the context of public policy toward America's publicly owned... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Marion Clawson; Forest; Economics; Resources; Policy; Timber; Recreation; History; Resource /Energy Economics and Policy; B31; Q10; Q20; Q23; Q24; Q26; Q28. |
| Ano: 1999 |
URL: http://purl.umn.edu/10755 |
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| 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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| Registros recuperados: 27 | |
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