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| Registros recuperados: 11.824 | |
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| Sudhakar, Prachi; Krishnan, Palaniappa; Bernard, John C.; Ritter, William F.. |
| The objective of this research was to predict the nitrogen-loading rate to Delaware lakes and streams using regression analysis and neural networks. Both models relate nitrogen-loading rate to cropland, soil type and presence of broiler production. Dummy variables were used to represent soil type and the presence of broiler production at a watershed. Data collected by Ritter & Harris (1984) was used in this research. To build the regression model Statistical Analysis System (SAS) was used. NeuroShell Easy Predictor, neural network software was used to develop the neural network model. Model adequacy was established by statistical techniques. A comparison of the regression and neural network models showed that both perform equally well. Cropland was... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/15824 |
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| Gillespie, Stuart. |
| A major premise of this paper is that the failure—or limited achievements—of many large-scale nutrition programs is very often a function of insufficient sustainable capacities within communities and organizations responsible for implementing them. Following a brief review of the various rationales for an intensified focus on capacity and capacity development, the paper examines the linkages between nutrition programming and capacity development processes before proposing a new approach to assessing, analyzing, and developing capacity. The ensuing sections then focus in more detail on the ingredients and influences of capacity at the levels of the community, program management, supporting institutions, and the government. Finally, the implications of a... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 2001 |
URL: http://purl.umn.edu/16429 |
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| Srinivasan, P.V.. |
| This study examines the impact of alternative price stabilization policies for edible oils and oilseeds in India on the farmers growing oilseeds, the consumers of edible oils and the processing sector with the help of a multi market equilibrium dynamic simulation model. Price stability in the edible oil sector is important at least for two reasons. It can help realize the growth potential in the production of edible oils and improve the nutritional security of Indian households. While efficiency considerations suggest the linking of domestic to world prices, extreme fluctuations in price have to be avoided, for they can lead to undesirable consequences both at the macro and micro levels. The questions addressed in this study include the following. What is... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2004 |
URL: http://purl.umn.edu/16125 |
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| Sauer, Johannes; Frohberg, Klaus; Hockmann, Heinrich. |
| The availability of efficiency estimation software freely distributed via the internet and relatively easy to use recently inflated the number of corresponding applications. The resulting efficiency estimates are used without a critical assessment with respect to the literature on theoretical consistency, flexibility and the choice of the appropriate functional form. The robustness of policy suggestions based on inferences from efficiency measures nevertheless crucially depends on theoretically well-founded estimates. This paper addresses stochastic efficiency measurement by critically reviewing the theoretical consistency of recently published technical efficiency estimates with respect to economic development. The results confirm the need for a... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2004 |
URL: http://purl.umn.edu/18772 |
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| Yamauchi, Futoshi. |
| This paper empirically identifies social learning and neighborhood effects in schooling investments in a new technology regime. The estimates of learning-investment rule from farm household panel data at the onset of the Green Revolution in India, show that (1) agents learn about schooling returns from income realizations of their neighbors and (2) schooling distribution of the parents’ generation in a community has externalities to schooling investments in children that are consistent with social learning. Simulations show that variations in schooling distributions within and across communities generate through social learning substantial variations in child enrollment rate and average household income. The results suggest that imperfect information... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Human capital; Social learning; Neighborhood effects; Income risk; Schooling distribution; Technical change; India; Labor and Human Capital. |
| Ano: 2005 |
URL: http://purl.umn.edu/59592 |
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| Roucan-Kane, Maud; Boehlje, Michael. |
| This teaching note accompanies the case study titled “Strategic Decision Making under Uncertainty: Innovation and New Product Introduction during Volatile Times” published under the reference: Boehlje, M. And M. Roucan-Kane, ”Strategic Decision Making under Uncertainty: Innovation and New Product Introduction during Volatile Times”, International Food and Agribusiness Management Review, 12 (4), 2009. This case study outlines the strategic, marketing, and organizational issues facing the farm machinery and equipment division of Deere and Company as it is considering the development of products in the information domain, which encompasses many opportunities of disruptive innovations to market to new or underserved customers. While these disruptive... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Teaching note; Uncertainty; Innovation; Real options; Portfolio; Agribusiness; D81. |
| Ano: 2009 |
URL: http://purl.umn.edu/54372 |
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| Canavari, Maurizio; Ghelfi, Rino; Merlo, Maurizio; Rivaroli, Sergio; Sarti, Danio; Toffanin, Giovanna; Vanelli, Pietro. |
| The latest orientations of the CAP have had remarkable and wide-spread effects on the whole agri-food sector. It has deeply influenced the entrepreneurs' choices, with reference both to the production techniques and to the business organization. The changes have had inevitable reflexes on the economic results of the firms, thus determining adaptations regarding both the structure and the amount of inputs. In this paper, an analysis of the book-keeping results of agricultural enterprises of Northern and Central Italy is carried out. We try to underline and analyze the evolution of the economic results and the main structural and organizational elements in the firms. The accountancy data of a group of firms located in the Veneto, Emilia-Romagna and... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Farm Management. |
| Ano: 2004 |
URL: http://purl.umn.edu/14378 |
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| Hasse, Rolf H.. |
| Die Frage nach dem Stand und der Entwicklung des Handelsprotektionismus wird vielfach vereinfachend beantwortet: Danach haben die GATT-Runden einen kontinuierlichen Abbau bewirkt. Diese Aussage wird überprüft. Dabei wird von vier Thesen ausgegangen: (1) Protektionismus ist ein integraler Bestandteil der internationalen Arbeitsteilung. (2) Die internationale Arbeitsteilung hat stetig zugenommen, ebenso aber auch die Wettbewerbsbeschränkungen zugunsten der nationalen Wertschöpfung. (3) Die Analyse der GATT-Runden klammert wesentliche Protektionswirkungen der Währungspolitik aus. (4) Die Ausweitung der GATTPrinzipien auf den Dienstleistungshandel (GATS) sowie den Handel mit geistigem Eigentum (TRIPS) wird einen Zuwachs an (neuem) Protektionismus hervorrufen,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Economic Order; Commercial Policy; Trade Negotiations; International Relations/Trade; F02; F13. |
| Ano: 2002 |
URL: http://purl.umn.edu/26239 |
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| Antoniou, Fabio; Hatzipanayotou, Panos; Koundouri, Phoebe. |
| We construct a strategic trade model of an international duopoly, whereby production by exporting firms generates a local pollutant. Governments use environmental policies, i.e., an emissions standard or a tax, to control pollution and for rent shifting purposes. Contrary to their firm, however, governments are unable to perfectly foresee the actual level of demand, the cost of abatement and the damage caused from pollution. Under these modes of uncertainty we derive sufficient conditions under which the governments optimally choose an emissions tax over an emissions standard. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Strategic Environmental Policy; Pollution; Choice of Policy Instrument; Uncertainty; Environmental Economics and Policy; F12; F18; Q58. |
| Ano: 2010 |
URL: http://purl.umn.edu/59375 |
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| Fan, Shenggen. |
| This paper develops a frontier shadow cost function approach to estimate empirically the effects of technological change, technical and allocative efficiency improvement in Chinese agriculture during the reform period (1980-93). The results reveal that the first phase rural reforms (1979-84) which focused on the decentralization of the production system have had significant impact on technical efficiency but not allocative efficiency. During the second phase reforms which was supposed to focus on the liberalization of rural markets, technical efficiency improved very little and allocative efficiency has increased only slightly, however. In contrast, the rate of technological change continued to increase, although at a declining rate during the second phase... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1999 |
URL: http://purl.umn.edu/16107 |
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| Tol, Richard S.J.. |
| Estimates of the marginal damage costs of carbon dioxide emissions suggest that, although climate change is a problem and some emission reduction is justified, very stringent abatement does not pass the cost-benefit test. However, current estimates of the economic impact of climate change are incomplete. Some of the missing impacts are likely to be positive and others negative, but overall the uncertainty seems to concentrate on the downside risks and current estimates of the damage costs may have a negative bias. The research effort on the economic impacts of climate change is minute, and should be strengthened, with a particular focus on the quantification of uncertainties; estimating missing impacts, interactions between impacts and higher-order... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12047 |
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| Weingarten, Peter. |
| This paper is concerned with agri-environmental policy in Germany and focuses in particular on soil and water conservation. At first it discusses to what extent agriculture contributes to erosion and the pollution of surface waters and groundwater with nutrients and pesticides. Whereas erosion is a minor problem in Germany water pollution due to modern and intensive agriculture is of major concern. In theory, a broad range of environmental policy instruments exists. In practice, agri-environmental policy in Germany is dominated by command-and-control-measures, whereas incentivebased measures are of minor importance. In this paper recent developments of the most important legal and institutional settings concerning soil and water conservation policies are... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1997 |
URL: http://purl.umn.edu/14912 |
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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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| Registros recuperados: 11.824 | |
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