Cette thèse s’inscrit dans le débat scientifique actuel autour de l’évaluation économique des services écosystémiques fournis par les aires marines protégées (AMP) dans les pays en voie de développement. Appliquant la méthode de l’évaluation contingente, elle s’est intéressée à l’analyse de la perception de la population mauritanienne des services écosystémiques fournis par l’aire marine protégée du parc national du banc d’arguin (PNBA) en Mauritanie et la valeur qu’elle consente à payer pour maintenir l’offre de ces services dans son état actuel. A travers l’analyse des résultats de trois enquêtes réalisées au PNBA (niveau local), à Nouakchott (zone adjacente) et à Tidjikja (arrière-pays), la thèse discute l’impact de la distance, dans le sens de l’éloignement et du temps nécessaire pour accéder à l’AMP, tant sur la perception des services écosystémiques fournis par le PNBA que sur le consentement à payer pour sa conservation. Par ailleurs, elle aborde l’applicabilité de la méthode de l’évaluation contingente dans les pays en voie de développement et propose quelques améliorations du protocole de l’enquête pour améliorer la fiabilité des résultats. / This thesis is part of the current scientific debate around the economic evaluation of ecosystem services provided by marine protected areas in developing countries. Using the contingent valuation method, it focused on the analysis of the Mauritanian population's perception of ecosystem services provided by the marine protected area of Banc d'Arguin National Park in Mauritania and the value that this population agrees to pay to maintain the supply of these services in its current state. Through the analysis of the results of three surveys conducted at the PNBA (local level), Nouakchott (adjacent zone) and Tidjikja (inland), the thesis discusses the impact of distance, in the sense of the remoteness and the time required to access the MPA, both on the perception of the ecosystem services provided by the PNBA and on the Willingness To Pay for its conservation.In addition, it discusses the applicability of the contingent valuation method in developing countries and proposes some improvements to the survey protocol to enhance the reliability of the results.

A relação economia e meio ambiente, retratada pela teoria econômica desde autores como David Ricardo, Thomas Malthus e Marx, tornou-se mais evidente após a década de 60 (século XX) em função dos processos de industrialização nos principais países do mundo. Intelectuais, como os que formaram o Clube de Roma, ressaltavam a tendência à escassez dos recursos naturais pela superexploração. Porém, uma área ainda é bastante polêmica dentro da relação entre economia e meio ambiente: a da valoração econômica. Os métodos usualmente propostos tendem a valorar os recursos naturais através da revelação das preferências. Normalmente, os recursos naturais não possuem um mercado real, fazendo-se necessário recorrer-se a um mercado hipotético para revelar a preferência dos agentes econômicos. Para fazer uma discussão acerca do tema, esta tese está dividida em três ensaios. No primeiro fez-se uma revisão sobre as teorias que evidenciam a relação entre economia e meio ambiente. No segundo aplicou-se o método da valoração contingente usando a Represa Dal Bó, em Caxias do Sul, como objeto no qual se desejou encontrar a disposição a pagar por sua preservação. Para o tratamento das informações aplicou-se uma regressão logística do tipo Logit. Por fim, no terceiro apresentou-se a Análise Custo Efetividade como uma alternativa a valoração ou precificação de um recurso natural. Para tanto, utilizou-se a situação dos recursos hídricos de Caxias do Sul para um exercício aplicando a ACE. Como conclusão, tem-se que a relação entre economia e meio ambiente é polêmica, sobretudo no que diz respeito à valoração. Ao aplicar o MVC, este apresentou resultados econométricos não muito significativos, confirmando as limitações do método. Mesmo assim, aponta com uma probabilidade de 69% uma disposição a pagar de mais de R$ 4,00/mês. Já para a aplicação da Análise Custo Efetividade, ao considerar-se apenas o setor industrial, tem–se que uma tarifa incitativa seria, no mínimo, de R$ 636,68 ton/ano representando o custo marginal para tratar a matéria orgânica medida pela demanda química de oxigênio. Ao acrescentar outros setores tem-se que a tarifa diminui para R$ 572,32 ton/ano devido ao custo marginal menor do setor doméstico. Pelos exercícios propostos a análise custo efetividade se mostra viável para valorar os recursos naturais sem, necessariamente, os precificar diretamente. / Economy and environment relationship, portrayed by economic theory from authors like David Ricardo, Thomas Malthus and Marx, became more apparent after the 1960s (Century XX), standed out by the industrializing processes in main countries of the world. Intellectuals such as members of The Club of Rome gave emphasis to the natural resources scarcity tendences caused by super exploration. However, there is still a controversial area within the relationship between environment and economy: the economic valuation.Usual proposed methods tend to value natural resources through disclosure of preferences. Normally occurs that natural resources do not have a real market, making it necessary to resort to a hypothetical market to reveal the preference of economic agents. For a discussion on the issue, this thesis is divided into three essays. In the first, a review about the theories that highlight the relationship between economy and environment is made. In the second, the contingent valuation method is apllied using the Dal Bó dam, at Caxias do Sul, as the object in which is wanted to find the disposition to pay for its preservation. For the information treatment is applied a logistic regression, Logit type. Finally, in the third, an Effectiveness Cost Analysis is presented as an alternative to a natural resource valuation or pricing. Therefore, the hydric resources situation in Caxias do Sul was considered in an exercise using the ECA. By conclusion, the relationship between economy and environment lead to polemics, especially what refers to the valuation. When applied the contingent valuation method the econometric results was not very significant, confirming your limitations. Nevertheless, with a probability of 69%, a willingness to pay was more than R$ 4.00/month. For Effective Cost Analysis application, when considering only the industrial sector, an inciting fare would be, at least, R$ 636,68 ton/year which represents the marginal cost to treat organic material measured by the oxygen chemical demand. When adding other sectors the fare diminish to R$ 572,32 ton/year due to lower marginal cost of domestic sector. By the proposed practices the Effectiveness Cost Analysis presents itself proper for valuing natural resources, without, necessarily, price them directly.

There are three broad areas of public administration that require valuation for public goods. One of these areas is concerned with value for cost benefit analysis. The concept here is quantitative, in money terms, and the purpose is to aid decision making. Planners and economists either calculate, or estimate total costs and total benefits of programs or projects as an aid to decision making. The second broad area involves justifying, or allocating public resources. Benefits bestowed by intangibles such as the arts, or questions that affect the environment are difficult to quantify as value may involve concepts the beneficiaries find difficult to identify or describe. The concept of value involves total costs, but also may involve perceptions of the community about value. Valuation costs may be calculated from the aggregate demand, but estimating demand can be difficult. The third broad area involves estimating demand for government services such as those provided by the Bureau of Statistics, and the Department of Administrative Services, as well as many others, who are being required to charge fees for services previously provided without direct charge. This development is part of the trend called corporatisation now occurring in many countries, including Australia. Economists and planners have a range of approaches available to assist them in the estimation of value, whether it be for the purpose of comparing costs with benefits, or for estimating the demand for tangible or intangible items like the arts or statistics. Surveys have been used for many years to assist a wide range of decisions by private enterprise. The use of surveys by government in Australia has been limited, but is increasing. US and European governments have used surveys to value both more and less tangible public goods since 1970. Surveys have also proved useful to assist many other decisions, including policy making, developing the means for implementing policies, monitoring and adjusting programs, and evaluation. This paper is primarily concerned with surveys. A particular type of survey, known as contingent valuation (CV), has been developed to assist the estimation of value for intangible public goods. Also discussed are other applications of surveys for government decision making, and other ways of imputing or estimating values, largely developed by economists and planners to assist cost benefit analysis. Three examples of surveys used to estimate values are discussed. These include a survey of Sydney households to help estimate the value of clean water; an Australia wide survey to help estimate the value of the arts; and a survey of Australians to help estimate the value of Coronation Hill without mining development. While the paper suggests that surveys have potential to assist a range of government decisions, examples also demonstrate the care required to obtain results that are reasonably precise and reliable.

Graduation date: 2005

Thesis (Ph. D.)--Ohio State University, 2006. / Title from first page of PDF file. Includes bibliographical references.

No description available.

Economical evaluation for the improvement strategy of drinking water quality by advanced water treatment in Greter Kaohsiung District

The Research on Revaluing the Development of Taiwan in Feng Shang Reservoir in Kaohsiung Abstract Since weekend holidays were carried out, the government has emphasized the tourist recreation and advocated making state-run enterprises with special scenic spots open to the public for promoting use value of their resources. With a trend of economic liberalization, government businesses such as TSC, TPC, and TSIC need operating in diversification and start investing in the tourist industry, each of which is owned based on the government¡¦s initiating plans for increasing the number of tourists. The protective areas of water resource that belong to TWSC are abundant in the ecological environment; however, forbidding people to go there has led to an obvious phenomenon against the unique sources shared by the masses. On one hand, this research, by opening Feng Shang Reservoir in Kaohsiung, can make people closed to water, realize the processing water, understand the importance of water resources to construct a society concerning about water. On the other hand, by using the natural resources there well and multiplying services to attract tourists, it not only has the educational function implied in entertainment but also augments income. But running the protective area of water resources as a tourist site will cause some negative effects of environment and water pollution as well as the anxiety about scaring migratory birds. Therefore, the protection and management of water resources must be under the cautious control. Making use of CVM, this research regards Feng Shang Reservoir as a fictitious market, and the visitors there as research objects of the investigation questionnaire. Besides analyzing the topics like the Development Market Potential, Future Use Benefits, Non-User Benefits¡Ketc, the aims of the research include inspecting the attitudes of customers toward the willingness to participate in and to pay according to the interviewees¡¦ different attitudes of social experiences, different preferences of outside recreations, different identifications of the nature¡Ketc. The results are the followings: 1. Feng Shang Reservoir possesses the market potential. 2. Future use Benefits estimated between $NT30,000,000 and $NT50,000,000 every year are high. 3. Non-User Benefits estimated between $NT160,000,000 and $NT220,000,000 every year are quite high. 4. For the attitudes of customers, labors, government employees, staffs of public school, and people of middle and old age who recognize more about the nature have high willingness to participate in; the common people who recognize less about the nature need to inspire their willingness through educational advocacy. Judging from the above results, this research advises that after appropriately developing Feng Shang Reservoir to the masses, the educational functions of water resources and the social benefits of environment are shared by all the society, which are equal to the return for society and even to TWSC¡¦s positive performance. Keywords¡GCVM(Contingent Valuation Method), WTP(Willingness To Pay), Tourism, Revalue, Feng Shang Reservoir.

In order to maintain a sustainable development and biological balance of the territory, the government defines several kinds of restricted areas for land development in National Comprehensive Development Plan. The classification of restricted areas is defined according to the environmental, biological and cultural sensitivities of land, and areas with such restrictions should limit the land use and development. However, owing to the high density of population and finite area of territory, the extension of economical activities to restricted areas such as the commercial activities in a national park is hard to avoid. Besides, during recent years, the fairness of the defining the boundary of restricted areas is often challenged and sometimes causes resistance of local inhabitants. As a result, such problems worsen under the pressure of economical development and thus lead to the malfunction of the land use regulation. To avoid this situation, the establishment of a system of a social compensation for restricted areas is vital to land management. Although some strategies such as impact fee have been made in order to deal with the environmental external effects caused by land development and modification, such strategies mostly focus on the compensation for people whose rights were damaged. However, there has not been a fair social compensation system dealing with the internalization of external advantages made by the beneficiaries by such land use regulations. Moreover, the traditional compensation strategies mostly deal with the standard of solatium calculation and the law base. Such strategies lack of a positive motivation to the sustainability and symbiosis of the environment. To achieve the circulation of environmental resources, urging the users to manage and use limited resources in an effective way is vital to the sustainable resource management. The study adopts the concepts of resource-based theory, environmental partnerships and non-profit enterprises, effectively integrates the public spirit of the government, the management knowledge of private sectors and the mobilization energy of local communities, and establishes a new cooperation model named ¡§social enterprise¡¨ based on communities. Based on a case study of Kenting National Park, this thesis first proceeds a survey of evaluation for environmental resources and attitude of local inhabitants and tourists towards the resource management in the restricted area using contingent valuation method (CVM). Through the result of the case study and the practical experiences of environmental partnerships carried in other countries, the thesis then discusses about the present problems of the compensation system in Taiwan and suggests possible strategies for the establishment of future social compensation system based on the concepts of local innovation and environmental partnerships.

Though recycled toilet paper (RTP) is more environmental friendly than toilet paper made of virgin fiber, they are also more expensive. The price difference has made manufacturers hesitate about marketing RTP in shops, because they assume that consumers are reluctant to buy it. However, no research has been done in Taiwan to explore consumers¡¦ willingness to pay (WTP) for RTP. This study is an attempt to do so by the use of two methods: contingent evaluation method (CVM) and conjoint analysis. Both methods were administered through a survey, which had a convenience sample of 192 female Kaohsiung citizens as respondents. Results based on CVM showed that the mean WTP for RTP was NT 151, which was a little higher than the price set by Homemaker¡¦s Union and Foundation¡Xan NGO which was the main channel selling RTP to the domestic sector in Taiwan. This suggests that manufacturers might have underestimated the market for RTP. To check the validities of the CVM and conjoint method, two criteria were measured: the respondents¡¦ past environmental behavior (PEB) and their willingness to make sacrifice for environmental causes (WTP3). The WTP as estimated by CVM, namely WTP1, was significantly related to both of these criteria (rs = .16, .32, ps < .05), showing that the CVM had a certain degree of validity. The importance that respondents attached to the eco-label of RTP was assessed by conjoint analysis. Validity of the importance scores thus obtained, however, was quite low: the correlation between these scores and WTP1, PEB and WTP3 were .05, .12 and .20 respectively, with only the last one significant. Results also suggest that environmental knowledge and health and safety concerns for products were not related to WTP1. Keywords: green consumption, contingent valuation method, conjoint analysis, environmental behavior, eco-label, green mark.