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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Evaluating the benefit-cost  ratio of groundwater abstraction for additional irrigation water on global scale.

Alam, Mohammad Faiz January 2016 (has links)
Projections show that to feed a growing population which is expected to reach 9.1 billion in 2050 would require raising overall food production by some 70 percent by 2050. One of the possible ways to increase agricultural production is through increasing yields by expanding irrigation. This study assesses the potential costs and benefits associated with sustainable groundwater abstraction to provide for irrigation.The feasibility of groundwater abstraction is determined using a combination of three indicators:groundwater recharge, groundwater quality (salinity) and sustainability (no depletion). Global groundwater recharge estimates used, are simulated with the Lund-Potsdam-Jena dynamic global vegetation model with managed lands (LPJmL). The cost of groundwater abstraction is determinedon a spatially explicit scale on global level at a grid resolution of 0.5°. Groundwater abstraction cost is divided into two parts: capital costs and operational costs. The potential benefit of increased water supply for irrigation is given by the water shadow price which is determined by using a Model of Agricultural Production and its Impact on the Environment (MAgPIE). The water shadow price for water is calculated in areas where irrigation water is scarce based on the potential increase in agricultural production through additional water and it reflects the production value of an additional unit of water. The water shadow price is given on a 0.5° grid resolution in US $/m3. Combining the cost of abstraction and the water shadow price, the benefit cost ratio is calculated globally on a spatially explicit scale to determine where investment in groundwater irrigation wouldbe beneficial. Finally, the results are analysed in global, regional and country perspectives. The results show that groundwater abstraction is beneficial for an area of 135 million hectares which is around 8.8% of the total crop area in the year 2005. Europe show the highest potential with an area of ~ 50 million hectares with a majority of the area located in France, Italy, Germany and Poland. Second is North America with an area of ~ 43.5 million hectares located in the Eastern states where the irrigation infrastructure is less developed as compared to the Western states. Sub-Saharan Africa shows a potential of ~ 15.4 million hectares in the Southern and Eastern countries of Zimbabwe, Kenya, Malawi, Tanzania, Ethiopia and some parts of South Africa. South Asia despite extensive groundwater extraction shows only a moderate potential of ~ 9 million hectares, mostly located in India whereas China shows almost no potential. This is due to extensive groundwater depleted areas which were removed from the analysis and low water shadow prices which made abstraction not beneficial. Well installation costs play an important role in developing countries in regions of Sub-Saharan Africa and South Asia, where a reduction in costs would lead to an increase in area by more than 30%. Subsidy analyses shows that substantial increase in crop land areas where a benefit cost ratio >1 takes place in India with subsidised energy prices but this effect is found to be negligible in Mexico. This study is, to the author’s knowledge, the first to assess the benefit cost ratio of groundwater abstraction on a global scale by determining spatially explicit abstraction costs. The results show that a great potential for groundwater abstraction exists in all regions despite problems of groundwater depletion due to disparity in distribution and development of groundwater resources. Energy subsidies and cheap well installation techniques are the two factors that could bring down the abstraction costs which are quite important in developing regions where farm incomes are low. Also, groundwater irrigation potential not only exists in arid areas of Africa and South Asia where irrigation is needed but also in humid areas of Europe and North America where groundwater irrigation can play an important role in building resilience to events of drought. However, it is essential to not to follow the path that has led to groundwater depletion in many parts of the world and develop this potential in a sustainable way through groundwater use regulations, policies and efficient technologies.
62

Environmental valuation

Anand, Prathivadi B. January 2012 (has links)
Yes
63

Politics, Social Cost Benefit Analysis and Planners

Potts, David J. 08 1900 (has links)
No / The paper explores some of the political assumptions implicit in the use of social cost-benefit analysis, and the role of economic planners using this analysis. It is argued that the recent emphasis on income distribution in project planning techniques rests on questionable assumptions about the nature and intentions of governments. These techniques can be thought of as attempts to redistribute income ‘through the back door’. Some possible justification for the use of income distribution weights in project planning is given, but it is concluded that they are very much second best to direct macro-economic policies and popular participation in planning.
64

Forget the Weights, Who gets the Benefits? How to Bring a Poverty Focus to the Economic Analysis of Projects

Potts, David J. 06 1900 (has links)
No / This paper examines the way in which the distributional impact of projects has been treated in the cost±bene®t analysis literature. It is suggested that excessive emphasis has been given to the estimation of distribution weights in the context of single ®gure measures of project worth and that more attention should be paid to estimation of the distribution e ects themselves. If projects really are to have some impact on poverty it is important that some attempt is made to measure what that impact is. Such an attempt requires both systematic measurement of direct income e ects as well as the possibility of measuring indirect e ects where these are expected to be important. An approach is suggested in which direct measurement of income e ects can be adjusted using shadow price estimates to determine indirect income e ects. The approach is illustrated with the example of a district heating project in the Republic of Latvia.
65

Assessing the impact of regeneration spending: lessons from the United Kingdom and the wider world

Potts, David J. 16 December 2008 (has links)
Yes / The government increased the funding for regional development agencies to £2.3 billion in 2007/8, yet hard evidence on the effectiveness of the spending is difficult to find. Techniques for valuing benefits in difficult areas have existed for many years. They range from the hedonic methods and contingent valuation studies of environmental economists to the estimates of shadow wage rates used by development economists to take account of the economic value of additional employment. The latter have been used for years in some of the poorest developing countries in the world, as well as some countries in the European Union. Meanwhile some attempts to capture the indirect benefits of regeneration spending have surfaced through the United States with the ‘Social Return on Investment’ and Local Multiplier 3, yet the proponents of these approaches do not seem to have come across the abundant literature on the use of shadow pricing in the context of developing countries. This article attempts to explore the extent to which practices used and lessons learned in the economic analysis of environmental impacts and of investments in developing countries can inform the evaluation and appraisal of regeneration projects in the United Kingdom.
66

Cost-Benefit Analysis of Environmental Quality Improvement Projects: Uncertain Benefits of Willingness to Pay from Referendum Contingent Valuation

Rodriguez, Diego J. 11 March 2000 (has links)
The use of contingent valuation (CV) methods to estimate benefits has become increasingly common in project analysis. Ever since the NOAA Blue Ribbon Panel Report in 1993 (NOAA, 1993) recommended the use of the referendum form of CV, it seems to have become the method of choice in practical settings. Referendum-type questions are thought to be easier to answer than the open-ended variety. But there is a downside: econometric techniques must be applied to the referendum data in order to infer the mean or median willingness to pay (WTP) of the sample and, thus, of the population of potential beneficiaries. This is not, however, just a technical point. Its implications are demonstrated with data obtained from a referendum CV study done for a proposed sewer and wastewater treatment project designed to improve water quality in the Tietê River flowing through the city of São Paulo, Brazil. The results show that: A factor of 4 separates lowest from highest central tendency estimates of WTP, ignoring one implausible outlier that is 14 times larger than the largest of the other figures. This variation is ample enough to make a difference in the cost-benefit analysis results for the project under conservative assumptions. Analysts that use referendum CV data must be sensitive to the problems they buy into, and decide how to deal with the resulting benefits uncertainty in their project analysis. If the principal use of CV survey data is to produce a mean or median estimate of WTP for Cost-Benefit analysis rather than to test for the factors influencing referendum choice responses and, by implication, WTP, nonparametric approaches have the advantage of simplicity over parametric approaches. / Master of Arts
67

A cost-effectiveness analysis of the first-line treatment regimens for multiple myeloma in Macao. / 澳門治療多發性骨髓瘤的第一線治療方案之成本效益分析 / Aomen zhi liao duo fa xing gu sui liu de di yi xian zhi liao fang an zhi cheng ben xiao yi fen xi

January 2009 (has links)
Kuok, Chiu Fai. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaves 139-154). / Abstract and appendix also in Chinese. / Abstract --- p.i / Abstract (in Chinese) --- p.iv / Acknowledgements --- p.vi / Table of Contents --- p.vii / List of Tables --- p.xi / List of Figures --- p.xiv / List of Abbreviations --- p.xv / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.2 --- The Impact of Malignant Diseases and Multiple Myeloma --- p.4 / Chapter 1.3 --- Pharmacoeconomics --- p.6 / Chapter 1.4 --- Macao Healthcare System --- p.9 / Chapter 1.5 --- Study Hypothesis --- p.12 / Chapter 1.6 --- Study Objectives --- p.12 / Chapter 1.7 --- Perspective of the Study --- p.13 / Chapter Chapter 2 --- Literature Review / Chapter 2.1 --- Hematopoietic System --- p.14 / Chapter 2.1.1 --- Specific Blood Cell Lineages and Blood Cells --- p.15 / Chapter 2.1.2 --- Bone Marrow Microenvironment --- p.19 / Chapter 2.2 --- The Hematologic Malignancies --- p.20 / Chapter 2.2.1 --- Leukemia --- p.21 / Chapter 2.2.2 --- Lymphoma --- p.23 / Chapter 2.2.3 --- Plasma Cell Disorders --- p.24 / Chapter 2.3 --- Multiple Myeloma --- p.25 / Chapter 2.3.1 --- Epidemiology --- p.26 / Chapter 2.3.2 --- Pathology --- p.29 / Chapter 2.3.3 --- Clinical Presentation and Disease Complications --- p.31 / Chapter 2.3.4 --- Classification and Diagnostic Criteria --- p.35 / Chapter 2.3.5 --- Disease Staging and Prognosis --- p.42 / Chapter 2.3.6 --- Treatment --- p.45 / Chapter 2.3.6.1 --- Treatment Regimens and Strategies --- p.47 / Chapter 2.3.6.1.1 --- Standard Chemotherapy --- p.48 / Chapter 2.3.6.1.1.1 --- Melphalan-based Regimens --- p.51 / Chapter 2.3.6.1.1.2 --- VAD-based Regimens --- p.52 / Chapter 2.3.6.1.1.3 --- High-dose Glucocorticoid Regimens --- p.53 / Chapter 2.3.6.1.2 --- Treatment Strategies --- p.53 / Chapter 2.3.6.1.2.1 --- Initial Chemotherapy --- p.53 / Chapter 2.3.6.1.2.2 --- High-dose Chemotherapy --- p.55 / Chapter 2.3.6.1.2.3 --- Newer Therapeutic Agents for Multiple Myeloma --- p.58 / Chapter 2.3.6.1.2.4 --- Salvage Chemotherapy --- p.60 / Chapter 2.3.6.2 --- Treatment Responses --- p.63 / Chapter 2.3.6.3 --- Treatment for Disease Complications --- p.66 / Chapter Chapter 3 --- Methodology / Chapter 3.1 --- Study Design --- p.69 / Chapter 3.2 --- Patients Selection Criteria --- p.71 / Chapter 3.2.1 --- For Retrospective Cost Analysis --- p.71 / Chapter 3.2.2 --- For Health-related Quality of Life Measurement --- p.71 / Chapter 3.3 --- Patient Screening --- p.72 / Chapter 3.4 --- Data Collection --- p.72 / Chapter 3.5 --- Overview of Assessment Methods --- p.73 / Chapter 3.5.1 --- Outcomes --- p.73 / Chapter 3.5.2 --- Cost Analysis --- p.74 / Chapter 3.5.3 --- Cost Effectiveness Analysis --- p.74 / Chapter 3.5.4 --- Cost Utility Analysis --- p.75 / Chapter 3.5.5 --- Health-related Quality of Life Assessment --- p.75 / Chapter 3.6 --- Statistical Analysis --- p.76 / Chapter 3.7 --- Ethic approval --- p.77 / Chapter Chapter 4 --- Results / Chapter 4.1 --- Study Population --- p.78 / Chapter 4.1.1 --- Cost and Pharmacoeconomic Analysis --- p.78 / Chapter 4.1.2 --- Health-related Quality of Life Assessment --- p.79 / Chapter 4.2 --- Study Results --- p.81 / Chapter 4.2.1 --- Comparison of All Patients --- p.81 / Chapter 4.2.1.1 --- Differences in Treatment Protocols --- p.81 / Chapter 4.2.1.2 --- Differences in Treatment Responses --- p.82 / Chapter 4.2.1.3 --- Differences in Treatment Outcomes --- p.82 / Chapter 4.2.1.4 --- Differences in Treatment Costs --- p.84 / Chapter 4.2.2 --- Comparison for Patients Treated by Melphalan-based Regimens and VAD-based Regimens --- p.90 / Chapter 4.2.2.1 --- Differences in Treatment Responses --- p.90 / Chapter 4.2.2.2 --- Differences in Treatment Outcomes --- p.90 / Chapter 4.2.2.3 --- Differences in Treatment Costs --- p.93 / Chapter 4.2.3 --- Melphalan-based Regimens Versus VAD-based Regimens by Patients with Different DS Staging --- p.96 / Chapter 4.2.3.1 --- Patients in Stage 3-A MM --- p.96 / Chapter 4.2.3.2 --- Patients in Stage 3-B MM --- p.98 / Chapter 4.2.4 --- Melphalan-based Regimens versus VAD-based Regimens in Patients with Different IS Staging --- p.101 / Chapter 4.2.4.1 --- Patients in Stage I MM --- p.101 / Chapter 4.2.4.2 --- Patients in Stage II MM --- p.104 / Chapter 4.2.4.3 --- Patients in Stage III MM --- p.107 / Chapter 4.2.5 --- Comparison for Patients with and without Transplantation --- p.110 / Chapter 4.2.6 --- Cost-effectiveness Assessment --- p.117 / Chapter 4.2.7 --- Cost-utility Assessment --- p.118 / Chapter 4.2.8 --- Sensitivity Analysis --- p.119 / Chapter 4.2.9 --- Health-related Quality of Life Assessment --- p.120 / Chapter Chapter 5 --- Discussion and Conclusion / Chapter 5.1 --- Summary of Results --- p.123 / Chapter 5.2 --- Implication for Treatment --- p.126 / Chapter 5.3 --- Economic Evaluation --- p.129 / Chapter 5.4 --- Health-related Quality of Life --- p.132 / Chapter 5.5 --- Limitations of the Study --- p.134 / Chapter 5.6 --- Conclusion and Implications for Future Studies --- p.135 / Appendix --- p.137 / References --- p.139
68

Comparative cost-benefit analysis of renewable energy resources for rural community development in Nigeria / A.A. Ogunlade

Ogunlade, Abimbola Adegoke January 2008 (has links)
Rural development by means of providing uninterruptible power supply has become a priority among developing countries. Nigeria especially has on its top agenda the mandate to provide clean and cost-effective means of energy to the rural communities, hardest hit by wave of incessant outages of electricity supply. Renewable Energy (RE), a clean form of energy that can be derived from natural sources is widely available throughout Nigeria but is not harnessed. In this dissertation a Cost-Benefit Analysis (CBA) framework is proposed for renewable energy towards rural community development in Nigeria as indicated in the 18-point recommendations of Energy Commission of Nigeria (ECN). Moreover, a cost-benefit analysis tool is formulated and developed from the CBA framework in order to analyze comparatively the costs and intangible benefits of renewable energy projects for rural application. A case study demonstrating the working methodology of the proposed framework is presented in order to establish the cost-benefit components by assessing the comparative cost-benefit analysis of RE at a rural site of Nigeria. Erinjiyan Ekiti rural area is located for CBA assessment with three RE resources (solar, wind and small hydro) selected for consideration. Through the application of Contingent Valuation Method (CVM), the respondents' willingness to pay for RE supply is obtained and RE benefits in monetary terms computed. Using three economic decision criteria namely: Net Present Value (NPV), Benefit-Cost Ratio (BCR) and Internal Rate of Return (IRR); the three RE resources are ranked according to their economic viability. The result of the analysis provides useful insight to investors and decision makers into how RE projects in rural community should be conducted. Foremost, it is revealed that all three RE options will be economically viable if implemented, though adequate caution must be taken when making a decision. Based on the CBA assessment, the Small-Hydro Power (SHP) option is ranked as the most viable option. However, this is swiftly negated if RE social impact, such as the spiritual belief of the rural dwellers, who rely on the only potential river as a medium of communication with their ancestors, are taken into consideration. Furthermore, a sensitivity assessment of the three RE options revealed that only solar photovoltaic (PV) option is marginally viable, thus turns negative upon an assumed increase in discount rate of only 17%. Herein, the proposed CBA framework provides a useful insight into an efficient method of appraising RE projects in rural communities. A CBA simulation tool is formulated and adapted from the CBA framework to enable quicker, reliable and automated means of assessing RE projects with a view to making wise investment decision. / Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
69

Comparative cost-benefit analysis of renewable energy resources for rural community development in Nigeria / A.A. Ogunlade

Ogunlade, Abimbola Adegoke January 2008 (has links)
Rural development by means of providing uninterruptible power supply has become a priority among developing countries. Nigeria especially has on its top agenda the mandate to provide clean and cost-effective means of energy to the rural communities, hardest hit by wave of incessant outages of electricity supply. Renewable Energy (RE), a clean form of energy that can be derived from natural sources is widely available throughout Nigeria but is not harnessed. In this dissertation a Cost-Benefit Analysis (CBA) framework is proposed for renewable energy towards rural community development in Nigeria as indicated in the 18-point recommendations of Energy Commission of Nigeria (ECN). Moreover, a cost-benefit analysis tool is formulated and developed from the CBA framework in order to analyze comparatively the costs and intangible benefits of renewable energy projects for rural application. A case study demonstrating the working methodology of the proposed framework is presented in order to establish the cost-benefit components by assessing the comparative cost-benefit analysis of RE at a rural site of Nigeria. Erinjiyan Ekiti rural area is located for CBA assessment with three RE resources (solar, wind and small hydro) selected for consideration. Through the application of Contingent Valuation Method (CVM), the respondents' willingness to pay for RE supply is obtained and RE benefits in monetary terms computed. Using three economic decision criteria namely: Net Present Value (NPV), Benefit-Cost Ratio (BCR) and Internal Rate of Return (IRR); the three RE resources are ranked according to their economic viability. The result of the analysis provides useful insight to investors and decision makers into how RE projects in rural community should be conducted. Foremost, it is revealed that all three RE options will be economically viable if implemented, though adequate caution must be taken when making a decision. Based on the CBA assessment, the Small-Hydro Power (SHP) option is ranked as the most viable option. However, this is swiftly negated if RE social impact, such as the spiritual belief of the rural dwellers, who rely on the only potential river as a medium of communication with their ancestors, are taken into consideration. Furthermore, a sensitivity assessment of the three RE options revealed that only solar photovoltaic (PV) option is marginally viable, thus turns negative upon an assumed increase in discount rate of only 17%. Herein, the proposed CBA framework provides a useful insight into an efficient method of appraising RE projects in rural communities. A CBA simulation tool is formulated and adapted from the CBA framework to enable quicker, reliable and automated means of assessing RE projects with a view to making wise investment decision. / Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
70

Health economic assessment of medical technology in chronic progressive diseases : multiple sclerosis and rheumatoid arthritis /

Kobelt, Gisela, January 2003 (has links)
Diss. (sammanfattning) Stockholm : Karol inst., 2003. / Härtill 6 uppsatser. ISBN tilldelat efter tryckningen.

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