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Registros recuperados: 16 | |
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Kim, C.S.; Schaible, Glenn D.; Garrett, Lynn; Lubowski, Ruben N.; Lee, Donna J.. |
Soybeans, the second highest cash crop following corn in the U.S., have come under attack by invasive species, the soybean aphid from the North and soybean rust from the South. We estimated the economic losses resulting from soybean aphid infestation by using a dynamic equilibrium model. Results indicate that, first, the reduction of soybean production resulting from soybean aphid infestation is largely absorbed by reducing soybean exports, due to the higher price elasticity of export demand compared to the domestic demand. Second, the economic losses to U.S. soybean producers would grow on average annually between $12.8 million and $23.4 million during the first five years of infestation. In the longer-run, soybean producers would suffer greater... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
Ano: 2006 |
URL: http://purl.umn.edu/21163 |
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Lubowski, Ruben N.; Bucholtz, Shawn; Claassen, Roger; Roberts, Michael J.; Cooper, Joseph C.; Gueorguieva, Anna; Johansson, Robert C.. |
This report examines evidence on the relationship between agricultural land-use changes, soil productivity, and indicators of environmental sensitivity. If cropland that shifts in and out of production is less productive and more environmentally sensitive than other cropland, policy-induced changes in land use could have production effects that are smaller-and environmental impacts that are greater-than anticipated. To illustrate this possibility, this report examines environmental outcomes stemming from landuse conversion caused by two agricultural programs that others have identified as potentially having important influences on land use and environmental quality: Federal crop insurance subsidies and the Conservation Reserve Program (CRP), the Nation's... |
Tipo: Report |
Palavras-chave: Conservation Reserve Program (CRP); Crop insurance; Erosion; Extensive margin; Farm policy; Imperiled species; Land use; Land-use change; Land quality; Nutrient loss; Soil productivity; Environmental Economics and Policy; Land Economics/Use. |
Ano: 2006 |
URL: http://purl.umn.edu/33591 |
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Claassen, Roger; Lubowski, Ruben N.; Roberts, Michael J.. |
We examine changes in land use caused by the large increase in crop insurance premium subsidies under the 1994 Federal Crop Insurance and Reform Act (FCIRA). We use a conditional logit model to estimate changes in six major land uses from 1992 and 1997 as a function of the change in expected return to crop insurance. Our data on individual land parcels across the entire coterminous United States enable identification of the extent, location, and physical characteristics of the land brought into and retained in production as a result of the crop insurance policies. Results indicate the additional crop insurance premium subsidies increased cultivated cropland area on the order of 1.9 million acres (0.6%), consistent with the lower range of previous... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
Ano: 2005 |
URL: http://purl.umn.edu/19546 |
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Lubowski, Ruben N.; Vesterby, Marlow; Bucholtz, Shawn; Baez, Alba; Roberts, Michael J.. |
This publication presents the results of the latest (2002) inventory of U.S. major land uses, drawing on data from the Census, public land management and conservation agencies, and other sources. The data are synthesized by State to calculate the use of several broad classes and subclasses of agricultural and nonagricultural land over time. The United States has a total land area of nearly 2.3 billion acres. Major uses in 2002 were forest-use land, 651 million acres (28.8 percent); grassland pasture and range land, 587 million acres (25.9 percent); cropland, 442 million acres (19.5 percent); special uses (primarily parks and wildlife areas), 297 million acres (13.1 percent); miscellaneous other uses, 228 million acres (10.1 percent); and urban land, 60... |
Tipo: Report |
Palavras-chave: Land use; Land-use change; Agricultural land; Nonagricultural land; Cropland; Forest-use land; Forestland; Pasture; Rangeland; Rural residential land; Special uses; Urban land; Land Economics/Use. |
Ano: 2006 |
URL: http://purl.umn.edu/7203 |
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Kim, C.S.; Lubowski, Ruben N.; Lewandrowski, Jan; Eiswerth, Mark E.. |
We present a conceptual, but empirically applicable, model for determining the optimal allocation of resources between exclusion and control activities for managing an invasive species with an uncertain discovery time. This model is used to investigate how to allocate limited resources between activities before and after the first discovery of an invasive species and the effects of the characteristics of an invasive species on limited resource allocation. The optimality conditions show that it is economically efficient to spend a larger share of outlays for exclusion activities before, rather than after, a species is first discovered, up to a threshold point. We also find that, after discovery, more exclusionary measures and fewer control measures are... |
Tipo: Journal Article |
Palavras-chave: Invasive species; Exclusion; Control; Eradication; Public expenditures; Environmental Economics and Policy; Resource /Energy Economics and Policy. |
Ano: 2006 |
URL: http://purl.umn.edu/10176 |
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Key, Nigel D.; Lubowski, Ruben N.; Roberts, Michael J.. |
This study makes use of farm-level data from the Agricultural Census to evaluate the effects of the 1996 Federal Agriculture Improvement and Reform (FAIR) Act, which intended to "decouple" commodity payments from production decisions. Prior to this Act, agricultural support payments were linked to production decisions via prices and a complex set of restrictions that acted to control the supply of agricultural commodities. We compare farm-level 1992-to-1997 changes in commodity crop plantings of farms that participated in government programs with farms that did not participate. We find that the growth rate of program-crop acreage of non-participants was 19 percentage points below that of participants. This estimated difference remains unchanged after... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural and Food Policy. |
Ano: 2004 |
URL: http://purl.umn.edu/20128 |
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Sullivan, Patrick; Hellerstein, Daniel; Hansen, LeRoy T.; Johansson, Robert C.; Koenig, Steven R.; Lubowski, Ruben N.; McBride, William D.; McGranahan, David A.; Roberts, Michael J.; Vogel, Stephen J.; Bucholtz, Shawn. |
This report estimates the impact that high levels of enrollment in the Conservation Reserve Program (CRP) have had on economic trends in rural counties since the program's inception in 1985 until today. The results of a growth model and quasi-experimental control group analysis indicate no discernible impact by the CRP on aggregate county population trends. Aggregate employment growth may have slowed in some high-CRP counties, but only temporarily. High levels of CRP enrollment appear to have affected farm-related businesses over the long run, but growth in the number of other nonfarm businesses moderated CRP's impact on total employment. If CRP contracts had ended in 2001, simulation models suggest that roughly 51 percent of CRP land would have returned... |
Tipo: Report |
Palavras-chave: Community/Rural/Urban Development; Land Economics/Use. |
Ano: 2004 |
URL: http://purl.umn.edu/33987 |
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Plantinga, Andrew J.; Lubowski, Ruben N.; Stavins, Robert N.. |
We conduct a national-scale study of the determinants of agricultural land values to better understand how current farmland prices are influenced by the potential for future land development. The theoretical basis for the empirical analysis is a spatial city model with stochastic returns to future land development. From the theoretical model, we derive an expression for the current price of agricultural land in terms of annual returns to agricultural production, the price of recently developed land parcels, and expressions involving model parameters that are represented in the empirical model by nonlinear functions of observed variables and parameters to be estimated. We estimate the model of agricultural land values with a cross-section on approximately... |
Tipo: Working or Discussion Paper |
Palavras-chave: Land Economics/Use. |
Ano: 2002 |
URL: http://purl.umn.edu/10852 |
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Registros recuperados: 16 | |
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