O presente trabalho trata das tutelas antecipadas em processos coletivos a partir do tratamento legal diferenciado dado pelo legislador e das considerações jurídicas não-legais próprias do seu objeto. Por meio de estudo comparado, o trabalho pretende enfrentar as dificuldades inerentes à complexidade das relações envolvidas, dando especial atenção à função do desenho da tutela antecipada, ao conceito de irreparabilidade e irreversibilidade, e à aplicação dos requisitos balance of hardships e interesse público. A análise passa pelas teorias da decisão judicial a fim de dar perspectiva à necessidade de um procedimento deliberativo mais complexo e minucioso para fins de responsividade das decisões judiciais. Ademais, explorase a adjudicaçãoo pragmática elaborada por Richard Posner e pretende-se sua aplicação aos processos coletivos por meio da introdução da análise de custo-benefício como procedimento decisório welfarista moralmente relevante, mas não moralmente decisivo. / This thesis focuses on the preliminary injunctions in class actions, having as the starting point the different legal treatment given by the legislator and the non-legal jurídical considerations that flows from its nature. By means of a comparative study, the work intends to face the inherent difficuties of the complex relationships entailed, paying extra attention to the function of the preliminary injunction structure, to the concept of irreparability and irreversibility, and to the way the requirements of balance of hardships and public interest apply. The analysis passes through the theories of the judicial decision-making process in order to give perspective to the need of more complex deliberative proceedings which must be done in full details to reach accountability. Furthermore, the work explores the pragmatic adjudication elaborated by Richard Posner and intends its application to class actions by means of the introduction of cost-benefit analysis as a welfarist decision-making procedure that is morally relevant, but not morally decisive.

Orientador: Renato Parsekian Martins / Resumo: Introdução: O ortodontista necessita ponderar entre a melhor evidência científica disponível, a sua experiência profissional e as preferências do paciente para a tomada de decisão clínica. A decisão entre bráquetes autoligáveis (BA) ou convencionais (BC) pode ser fundamentada com estudos comparando sua eficiência clínica e aspectos profissionais de manuseio dos bráquetes, mas poucos estudos abordam as percepções do paciente e nenhum compara e quantifica a preferência e a percepção de desconforto dos pacientes, distinguindo-a da sensibilidade dolorosa. Um estudo clínico randomizado e controlado split-mouth de centro único foi conduzido com esse objetivo. Métodos: Vinte e seis participantes com média de 28,8(11,5) anos, com má oclusão simétrica, foram convocados para participar da pesquisa. Cada paciente teve um hemiarco superior randomizado para instalação de BA, enquanto o hemiarco contralateral era instalado os BC, ao mesmo tempo (T0). O cegamento apenas foi possível para o pesquisador. A preferência foi consultada após 30 dias e quantificada pela técnica willigness-to-pay (WTP), enquanto o nível de desconforto foi medido por escala visual analógica (EVA) antes da instalação(T0), imediatamente após a instalação (T1), 7 dias após a instalação (T2) e 30 dias após a instalação e com fio amarrado (T3). Índices de placa (IP) e gengival(IG) foram feitos em T0 e T3. Resultados: Os pacientes percebem diferença entre os modelos usados. Ao final, 17 pacientes preferiram os bráquetes c... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: ABSTRACT Introduction: The orthodontist needs to balance between the best available scientific evidence, his professional experience and the patient's preferences for clinical decision-making. The decision between self-ligating (SLB) or conventional (CB) brackets can be based on studies comparing their clinical efficiency and professional aspects of bracket manipulation, but few studies address the patient's perceptions and none compares and quantifies preference and perception of discomfort of patients, distinguishing it from pain sensitivity. A single-center, randomized, controlled split-mouth trial was conducted with this goal. Methods: Twenty-six participants with a mean age of 28.8 (11.5) years with symmetric malocclusion were invited to participate in the study. Each patient had a superior hemiarch randomized to bonding SLB, while the contralateral hemiarch had CB bonded at the same time (T0). Blinding was only possible for the researcher. The preference was consulted after 30 days and quantified by the willigness-to-pay (WTP) technique, while the level of discomfort was measured by visual analogue scale (VAS) before bonding (T0), immediately after bonding (T1), 7 days after bonding (T2) and 30 days after bonding and with wire tied (T3). Plaque and gingival index were made in T0 and T3. Results: Patients perceive difference between the models used. In the end, 17 patients preferred the conventional, while 9 preferred the self-ligation brackets. Patients who chose CBs we... (Complete abstract click electronic access below) / Doutor

With theoretical foundations in welfare theory, the cost benefit analysis (CBA) technique is a powerful tool for assessing benefits particularly where markets do not exist or would fail (for example due to the existence of public goods) or have become potentially politically excluded (such as the health sector). Unlike other economic evaluation techniques, costs and benefits are measured in monetary terms allowing for comparisons within and between different sectors of the economy for resource allocation decisions. Using contingent valuation (CV) techniques, people's preferences for goods are determined by finding out what they would be willing to pay (WTP) for specified benefits or improvements; or accept (WTA), as compensation for withdrawal or loss of benefit. While the use of WTP methods has grown in other sectors, the uptake in health has been limited. A long-standing criticism is that stated WTP estimates may be poor indicators of actual WTP, calling into question their validity and the use of such estimates for welfare valuation. The aim of this thesis is to investigate the criterion validity of CV-WTP studies. A four-pronged approach including critical appraisals of the available literature and evidence on criterion validity and empirical analyses was adopted. The thesis established the scarcity in criterion validity assessments, particularly in the health sector and that evidence on the criterion validity of CV-WTP is more varied than authors are presenting. The variety in the methods used to assess and report criterion validity assessments is demonstrated. Further, the impact of the analysis of hypothetical WTP on criterion validity assessments and conclusions thereof is demonstrated. The empirical analyses further demonstrate the differences in predictions and predictors of WTP analyses, discussing the effect of these on criterion validity assessments and conclusions. Finally, the thesis offers suggestions for the reporting of criterion validity assessments, in efforts to improve the method.

Private hydropower operations across the United States are utilizing a public resource, rivers, for power production benefits. The Federal Energy Regulatory Commission regulates river use through a relicensing procedure that occurs every thirty or fifty years through a cost-benefit analysis framework to determine the best public use of the river. This thesis explores the structure of the current cost-benefit analysis and the effects of timing, public participation and valuation of ecosystem services in the final relicensing decision, and recommends the use of a social cost-benefit framework to distribute the natural resource benefits rivers provide more equally and give fair weight to ecosystem benefits in a market-driven process.

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.

<p>This thesis comprises two papers exploring aspects of public finance and environmental economics in Namibia.</p><p>Paper [I] estimates the shadow prices of capital, labour and foreign exchange for the Namibian economy. The results suggest that the shadow price of capital for Namibia is 8%. The economic costs of Namibian labour, as a share of financial costs, are 32% for urban semi- and unskilled labour, and 54% for rural semi- and unskilled labour. The economic cost of foreign labour as a share of financial costs is 59%. The estimated range for the shadow exchange rate factor is between 7% and 14% for the Namibian economy.</p><p>Paper [II] studies the determinants of property prices in the township areas of Windhoek, the capital of Namibia. The study reveals that properties located close to an environmental hazard, such as a garbage dump, sell at considerable discounts. On the other hand properties located near an environmentally favourable location, such as recreational open space, sell at a premium. These results provide evidence of the importance of environmental quality in lower income property markets in developing countries. It is therefore important for Namibian urban planners to incorporate environmental quality within the planning framework for lower income areas.</p>

<p>Swedish drug policies are among the most prohibitive in the world. Regardless of the ever expanding “narcotics criminal code” (narkotikastrafflagen), the drug use development in Sweden has followed international fluctuations in the narcotics market. A considerable increase in the number of debutants in using narcotics can be seen in the 1960s, followed by a reduction during the 1970s reaching a low in the mid 1980s. This is when the “zero-vision” on drugs is introduced in Sweden. Despite this vision and its accompanying increase in preventive measures, a remarkable increase in the number of users of narcotics has taken place from the 1990s up until the present.</p><p>Swedish policy today puts lots of recourses into catching the users of narcotics even though historically and in comparison to other countries punishment and force have not been seen to be the strategies giving results. At the same time the Netherlands who is seen as an ultra-liberal country on the issue of narcotics, show better results than ultra-prohibitive Sweden, better results being fewer serious abusers per 1000 inhabitants. The fact that they have a higher frequency of people regularly using cannabis does not seem to result in a high number of abusers of serious narcotics.</p><p>With this paper I wanted to raise the question whether or not the resources the Swedish state today use on the prevention of the use of drugs could be allocated in a different way. In my research I found that the reason for the development of an abuse of narcotics was not the mere existence of drugs themselves, but rather marginalization and social maladjustment. Therefore I think it is time to shift focus from the abuse of narcotics and to these reasons for the abuse.</p><p>In my paper I introduce one way of distributing legal narcotics through specialized drugstores where you need a license to be allowed to buy the narcotics. This is to help control the use of narcotics, to prevent illegal distribution, and to obtain information on the use patterns and demand for narcotics. This system is also meant to be a warning system to help the Swedish government to offer help to those who need it.</p><p>I have also done a qualitative cost- benefit analysis on the legalization of narcotics, listing all the possible costs and benefits this might have for society.</p><p>My conclusion is that regardless of the economical profits that could be made trough legalizing narcotics, there are bigger issues that I have not been able to monetize, that need to be considered when making this decision. One example could be health effects and the value of those.</p><p>Legalization is not necessarily the only road to take, but regardless of legalizing drugs or not, focus and resources should be shifted to prevent marginalization and social maladjustment and remove the reasons why people develop an abuse in the first place.</p> / <p>Den svenska narkotikapolitiken är en av de mest restriktiva i världen. Oberoende av den hela tiden expanderande narkotikastrafflagen så har drogutvecklingen i Sverige följt de internationala trenderna på narkotikamarknaden. En markant ökning i antalet narkotika- debutanter kan ses på 1960-talet, följt av en nedgång under 1970-talet. En botten nås på mitten av 1980-talet. Samtidigt introduceras ”nollvisionen” i den svenska narkotikapolitiken. Trots denna visionen och de tillhörande ökningarna i preventiva åtgärder, ser man en kraftig ökning i antalet narkotikaanvändare från mitten av 1990-talet och fram till i dag.</p><p>Dagens svenska narkotikapolitik lägger mycket fokus på att få tag på narkotikaanvändarna även om straff och tvång inte har varit de strategier som givit resultat, sett från ett historiskt perspektiv och i jämförelse med andra länder. Samtidigt visar Nederländerna, som ses som ett ultraliberalt land i narkotikafrågan, ett bättre resultat än ultrarestriktiva Sverige. Med ett bättre resultat menas färre missbrukare per 1000 invånare. Det faktum att Nederländerna har en högre frekvens av folk som regelbundet använder cannabis verkar inte ge ett högre antal narkotikamissbrukare.</p><p>Med denna uppsats vill jag ställa frågan om de resurser som svenska staten i dag lägger på att hindra narkotikaanvändandet kan allokeras på ett annat sätt. I min forskning fann jag att orsakerna till utvecklandet av ett missbruk var marginalisering och social missanpassning, inte själva existensen av narkotika. Av den anledningen menar jag att fokus måste flyttas från narkotikamissbruket och till anledningarna till narkotikamissbruket.</p><p>I min uppsats presenterar jag ett specifikt sätt att distribuera narkotika, nämligen genom specialiserade narkotikaaffärer där man behöver en licens för att köpa narkotika. Detta för att kunna kontrollera narkotikaanvändandet, hindra olaglig distribution av droger, samt för att erhålla information om användningsmönster och efterfrågan på narkotika. Detta system är också menat att hjälpa svenska staten att erbjuda hjälp till dem som behöver det.</p><p>Jag har även gjort en kvalitativ kostnads- nyttoanalys om legaliseringen av narkotika, i vilken jag räknar upp de kostnader och nyttor detta kan ha för samhället.</p><p>Min konklusion är dock att oberoende av de ekonomiska fördelar en legalisering skulle kunna ge, så finns det många omständigheter som jag inte kunnat värdera och vilka bör tas med när man tar detta beslut. Exempel på sådana kan vara hälsoeffekter och hur man värderar dessa.</p><p>Legalisering är inte nödvändigtvis ända sättet, men oavsett en legalisering eller inte borde fokus och resurser flyttas för att hindra marginalisering och social missanpassning, och eliminera orsakarna till att folk utvecklar ett missbruk i första hand.</p>

This thesis concerns two topics related to policy effects of hillside and ridgeline development in Knox County, TN and attempts to quantify the values of different aspects of forest land in the area, particularly how the amenity values of forest land affect the prices of surrounding houses. The first essay conducts a cost-benefit analysis to determine the willingness of individual landowners for reforestation given explicitly stated costs and benefits of reforestation. A sequence of hedonic models was used to estimate differences in non-use values attributable to deforested and to forested areas, allowing the establishment of an overall price-distance relationship between the amenity values attributable to both areas and their proximities to housing locations. The results showed that the benefits from reforestation were greater than the opportunity costs of barren/grassland replaced and the houses with the greatest gains from reforestation were within one mile of the target site. Amenity value benefits for reforestation vary between sites but the sites with the greatest gains were those with the largest area, the lowest land cost, and the most houses within one mile. The second essay examined the effects of forest views on house prices and also the effect that the economy had on consumers’ value of those views. This study applied a sales hedonic model to two time periods with markedly different economic climates, the housing boom of 2002-2006 and the recession of 2008. Amenity value gains from forest views were then mapped out for the county for both periods to find those areas that had the highest gains in both periods. The results showed that while the views of forest land increase house values in both periods, the average marginal implicit price gain decreased over 13 percent from the boom period to the recession. Maps of the value gains highlighted the south-western, eastern and northern parts of the county, which contain high income suburban communities, with consistent value gains in excess of $70 per acre.

This thesis comprises two papers exploring aspects of public finance and environmental economics in Namibia. Paper [I] estimates the shadow prices of capital, labour and foreign exchange for the Namibian economy. The results suggest that the shadow price of capital for Namibia is 8%. The economic costs of Namibian labour, as a share of financial costs, are 32% for urban semi- and unskilled labour, and 54% for rural semi- and unskilled labour. The economic cost of foreign labour as a share of financial costs is 59%. The estimated range for the shadow exchange rate factor is between 7% and 14% for the Namibian economy. Paper [II] studies the determinants of property prices in the township areas of Windhoek, the capital of Namibia. The study reveals that properties located close to an environmental hazard, such as a garbage dump, sell at considerable discounts. On the other hand properties located near an environmentally favourable location, such as recreational open space, sell at a premium. These results provide evidence of the importance of environmental quality in lower income property markets in developing countries. It is therefore important for Namibian urban planners to incorporate environmental quality within the planning framework for lower income areas.

Global warming is an international problem which has led to that many corporations today has an increased environmental awareness. This thesis includes a Cost Benefit Analysis (CBA) approach which evaluates whether carbon offsetting is a profitable alternative for corporations and society wide. The study is predominately focusing on the emissions of the greenhouse gas . The calculations of CBA show the difference between the scenarios with or without the carbon offsetting. In the CBA approach effects are divided into benefits and costs. The study includes a case study of Husqvarna AB and is carried through with aim to get a decision support whether or not to make the corporation carbon neutral. Basic data from Husqvarna AB has been used.