929 resultados para Urban transportation - Economic aspects


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This paper investigates economic aspects of marine protected areas (MPAs) that are closely related to the underlying marine biota. Many marine scientists recognize that enough is now known about the marine biology for the scientific siting of MPAs to protect marine environments that create associated economic values. Marine scientists have identified several objectives of MPAs. These include protection of genetic and biodiversity, increase in population levels and structures (e.g., age, size, fecundity), enrichment of ecosystems by promoting species interactions, and the protection of continental shelf landscapes from invasive human actions. Indeed, some marine scientists and fisheries economists view MPAs as an 'insurance policy' against over-fishing and other human uses of oceanic resources that have damaged so many of the world's fisheries. The economic analysis presented here pays attention to optimal zoning, policies to maintain sustainable economic rents, and the optimal policing of MPAs.

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"The Economic and Social Consequences of Preparedness Economics" (1937-1939):; 1. "First Draft of a Memorandum on a Research Project on The Economic Consequences of Preparedness Economics, planned by the International Instittute of Social Research" (13.12.1938). Typoskript mit handschriftlichen Ergänzungen, 2 Blatt; 2. Albert Lauterbach: "Project submitted to the Social Science Research Council: Sociological and Economic Aspects of Preparedness Economics". Typoskript, 3 Blatt; 3. Günther Reimann: "The Economics of Chemical Production". Typoskript, 4 Blatt; 4. Franz Neumann: "Bemerkungen zum Exposé Dr. Heiders 'Die Rolle der Bürokratie im totalitären Staat'" (22.2.1937). Typoskript, 1 Blatt; 5. Joseph Soudek: "Soziale und wirtschaftliche Aspekte der Wehrwirtschaft". Typoskript mit handschriftlichen Korrekturen und Ergänzungen von Friedrich Pollock (16.1.1939), 5 Blatt; 6. "Recovery and Boom Politics", Gliederungsentwurf, 3 Blatt; 7. "Interventionism and Business Cycles", Gliederungsentwurf, 7 Blatt;

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The Advisory Committee on Immunization Practices (ACIP) develops written recommendations for the routine administration of vaccines to children and adults in the U.S. civilian population. The ACIP is the only entity in the federal government that makes such recommendations. ACIP elaborates on selection of its members and rules out concerns regarding its integrity, but fails to provide information about the importance of economic analysis in vaccine selection. ACIP recommendations can have large health and economic consequences. Emphasis on economic evaluation in health is a likely response to severe pressures of the federal and state health budget. This study describes the economic aspects considered by the ACIP while sanctioning a vaccine, and reviews the economic evaluations (our economic data) provided for vaccine deliberations. A five year study period from 2004 to 2009 is adopted. Publicly available data from ACIP web database is used. Drummond et al. (2005) checklist serves as a guide to assess the quality of economic evaluations presented. Drummond et al.'s checklist is a comprehensive hence it is unrealistic to expect every ACIP deliberation to meet all of their criteria. For practical purposes we have selected seven criteria that we judge to be significant criteria provided by Drummond et al. Twenty-four data points were obtained in a five year period. Our results show that out of the total twenty-four data point‘s (economic evaluations) only five data points received a score of six; that is six items on the list of seven were met. None of the data points received a perfect score of seven. Seven of the twenty-four data points received a score of five. A minimum of a two score was received by only one of the economic analyses. The type of economic evaluation along with the model criteria and ICER/QALY criteria met at 0.875 (87.5%). These three criteria were met at the highest rate among the seven criteria studied. Our study findings demonstrate that the perspective criteria met at 0.583 (58.3%) followed by source and sensitivity analysis criteria both tied at 0.541 (54.1%). The discount factor was met at 0.250 (25.0%).^ Economic analysis is not a novel concept to the ACIP. It has been practiced and presented at these meetings on a regular basis for more than five years. ACIP‘s stated goal is to utilize good quality epidemiologic, clinical and economic analyses to help policy makers choose among alternatives presented and thus achieve a better informed decision. As seen in our study the economic analyses over the years are inconsistent. The large variability coupled with lack of a standardized format may compromise the utility of the economic information for decision-making. While making recommendations, the ACIP takes into account all available information about a vaccine. Thus it is vital that standardized high quality economic information is provided at the ACIP meetings. Our study may provide a call for the ACIP to further investigate deficiencies within the system and thereby to improve economic evaluation data presented. ^

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El presente trabajo tiene como objetivo realizar el estudio de los cambios territoriales a partir de la evolución en los usos de suelo, la estructura morfológica urbana y aspectos socio-económicos de la población en uno de los asentamientos poblacionales situados en las márgenes del Arroyo El Gato. El mismo se llevará a cabo a partir de la implementación de la teledetección, análisis de datos estadísticos y encuestas. El estudio de las transformaciones territoriales nos ayudará a abordar en una primera aproximación las dimensiones de peligrosidad y exposición enmarcadas en la teoría social del riesgo. Este análisis servirá como insumo para la determinación de áreas de riesgo de inundación que se está desarrollando dentro del proyecto "Inundaciones en la Provincia de Buenos Aires. Factores naturales y antrópicos desde la Teoría Social del Riesgo. Cuenca Parano-Platense. 1980-2000".

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El presente trabajo tiene como objetivo realizar el estudio de los cambios territoriales a partir de la evolución en los usos de suelo, la estructura morfológica urbana y aspectos socio-económicos de la población en uno de los asentamientos poblacionales situados en las márgenes del Arroyo El Gato. El mismo se llevará a cabo a partir de la implementación de la teledetección, análisis de datos estadísticos y encuestas. El estudio de las transformaciones territoriales nos ayudará a abordar en una primera aproximación las dimensiones de peligrosidad y exposición enmarcadas en la teoría social del riesgo. Este análisis servirá como insumo para la determinación de áreas de riesgo de inundación que se está desarrollando dentro del proyecto "Inundaciones en la Provincia de Buenos Aires. Factores naturales y antrópicos desde la Teoría Social del Riesgo. Cuenca Parano-Platense. 1980-2000".

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El presente trabajo tiene como objetivo realizar el estudio de los cambios territoriales a partir de la evolución en los usos de suelo, la estructura morfológica urbana y aspectos socio-económicos de la población en uno de los asentamientos poblacionales situados en las márgenes del Arroyo El Gato. El mismo se llevará a cabo a partir de la implementación de la teledetección, análisis de datos estadísticos y encuestas. El estudio de las transformaciones territoriales nos ayudará a abordar en una primera aproximación las dimensiones de peligrosidad y exposición enmarcadas en la teoría social del riesgo. Este análisis servirá como insumo para la determinación de áreas de riesgo de inundación que se está desarrollando dentro del proyecto "Inundaciones en la Provincia de Buenos Aires. Factores naturales y antrópicos desde la Teoría Social del Riesgo. Cuenca Parano-Platense. 1980-2000".

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This paper based on a primary survey of households (2004-05) in the slum clusters of Delhi examines whether migrants are likely to experience upward mobility in their place of destination or alternatively, if they merely transfer their poverty from rural areas to large cities. First, a simple bifurcation of population in terms of poor and non-poor sub-groups is examined along with the incidence of poverty across different categories of occupations and non-workers. Then, an explanation of the variations in per capita expenditure across households is provided, and a binomial logit model (poor/non-poor) is developed identifying the variables which raise (or reduce) the probability of being non-poor (or poor). Next, an estimate of the wellbeing (deprivation) index is derived from factor analysis of a large number of variables including demographic and economic aspects of households. Empirical findings suggest that while duration of migration and the wellbeing index do not have a definite relationship, migrant households who have been in the city for a very long time have a higher wellbeing index on average than those who migrated in the last ten years. This tends to support the view that migrants do not merely transfer rural poverty to urban areas, and further that population mobility yields improvement in the living standard, if only in the very long term. Implementation of "employment-cum-shelter" support schemes in the urban areas may contribute to their wellbeing.

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This paper develops a model of a spatial economy in which interregional trade patterns and the structure of the transport network are determined endogenously as a result of the interaction between industrial location behavior and increasing returns in transportation, in particular, economies of transport density. The traditional models assume either the structure of the transport network or industrial location patterns, and hence, they are unable to explain the interdependence of the two. It is shown that economies of transport density can be the primary source of industrial localization.

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The need to decarbonize urban mobility is one of the main motivations for all countries to achieve reduction targets for greenhouse gas (GHG) emissions. In general, the transport modes that have experienced the most growth in recent years tend to be the most polluting. Most efforts have focused on improvements in vehicle efficiency and on the renewal of vehicle fleets; more emphasis should be placed on strategies related to the management of urban mobility and modal share. Research of individual travel that analyzes carbon dioxide (CO2) emissions and car and public transport share in daily mobility will enable better assessments of the potential of urban mobility measures introduced to limit GHG emissions produced by transport in cities. The climate change impacts of daily mobility in Spain are explored with data from two national travel surveys in 2000 and 2006, and a method for estimating the CO2 emissions associated with each journey and each surveyed individual is provided. The results demonstrate that from 2000 to 2006, daily mobility has increased and has led to a 17% increase in CO2 emissions. When these results are separated by transport mode, cars prove to be the main contributor to that increase, followed by public transport. More focus should be directed toward modal shift strategies, which take into account not only the number of journeys but also the distance traveled. These contributions have potential applications in the assessment of current and future urban transport policies related to low-carbon urban transportation.

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Coastal erosion is an important and constant issue facing coastal areas all over the world today. The rate of coastal development over the years has increased, in turn requiring that action be taken to protect structures from the threat of erosion. A review of the causes of coastal erosion and the methods implemented to control it was conducted in order to determine the best course of action in response to coastal erosion issues. The potential positive and negative economic and environmental impacts are key concerns in determining whether or not to restore an eroding beach and which erosion control method(s) to implement. Results focus on providing a comparison of these concerns as well as recommendations for addressing coastal erosion issues.

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An extensive and growing road system in the United States bisects vital wildlife habitat and is causing deleterious ecological effects on many wildlife species. The primary impacts include collisions between wildlife and vehicles, altered movement patterns within habitat, and/or the complete blockage of movements between vital habitats. The increasing size of the road network and number of vehicles will only intensify the problem unless proactive wildlife mitigation measures are developed to minimize these adverse effects. Therefore, this capstone project examines the role of citizen advocacy for promoting wildlife protection in the planning and development of wildlife-sensitive transportation projects in the United States. Based upon a data analysis of 21 questionnaires from qualified participants, it was determined that citizen participation is an important component associated with the development of wildlife-sensitive transportation projects. However, four major barriers to facilitating effective citizen participation processes were identified. 1) A lack of awareness. Citizens are only minimally aware of wildlife and transportation issues, including: a) the ecological impacts of roads, b) the solutions available to mitigate these impacts, and c) the opportunities to advocate for the protection of wildlife during transportation planning processes; 2) Public apathy or a lack of citizen interest in wildlife and transportation issues; 3) Ineffective citizen participation techniques and processes; and 4) Poor communication with citizens. Four recommendations were provided to assist in overcoming these barriers and to help define a better role for citizen advocacy in protecting wildlife from the growing road network.

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Introduction. Since the 25th of January 2011 revolution the Egyptian economy has been suffering on all fronts. Almost all the economic indicators have been pointing towards a deteriorating situation, and in many cases have reached the trough. Yet, the economy is still surviving. This is mainly due to the unprecedented support of some of Arab Gulf countries, whose unconditional aid has helped to mitigate the deteriorating economic conditions. The economic challenges facing Egypt have been exacerbated after the 20th of January revolution mainly because of the deteriorating political and security conditions which have interrupted the functioning of the economy. Yet, this is not to say that revolution has caused these challenges. In fact, the challenges that the Egyptian has been facing have deep roots in its socio-political-economic context, which this paper aims to explain. The revolution and its aftermath have brought to the forefront challenges which have always been mitigated by short-term solutions that never dealt seriously with their roots. Moreover, the revolution has brought additional problems associated with the macroeconomic imbalances. As a result, the challenges became more complex especially in light of the need to balance the social and economic aspects. The paper proceeds as follows; in section one we pinpoint the main challenges faced by Egypt where we identify the symptoms and causes of such challenges. In section two we discuss the roots of such challenges. Finally, we conclude and provide our understanding of how Egypt is expected to face its challenges in the near future.

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Unlike some previous EU enlargements (e.g. with the UK and with Spain/Portugal) the present EU enlargement to Central Europe has not prompted much, let alone a fierce, debate about the external dimension. This BEEP briefing discusses the main economic aspects of the external dimension, in particular whether there is a threat of (how much) trade diversion. Attention is paid to the three main topics of interest for third countries: industrial trade effects, impact on FDI and agricultural trade effects. Agriculture is arguably the most sensitive of the three, given the very high CAP border protection, and although large-scale trade diversion may eventually occur under certain scenarios (such as an unreformed CAP), these fears are greatly exaggerated in the short to medium term (5-7 years): the time frame considered is therefore all-important. This conclusion becomes less surprising if one takes a closer look at the current sorry state of agriculture in the CEECs. Separate sections treat the somewhat sensitive subject of U.S.-CEEC Bilateral Investment Treaties, as well as the longterm development perspective, which addresses the prospects for catch-up growth by the accession countries. In the end, non-European stakeholders in the accession process will greatly benefit from sustained catch-up growth by the CEECs, which are locking-in deep reforms due to EU accession.

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The EU began railway reform in earnest around the turn of the century. Two ‘railway packages’ have meanwhile been adopted amounting to a series of directives and a third package has been proposed. A range of complementary initiatives has been undertaken or is underway. This BEEP Briefing inspects the main economic aspects of EU rail reform. After highlighting the dramatic loss of market share of rail since the 1960s, the case for reform is argued to rest on three arguments: the need for greater competitiveness of rail, promoting the (market driven) diversion of road haulage to rail as a step towards sustainable mobility in Europe, and an end to the disproportional claims on public budgets of Member States. The core of the paper deals respectively with market failures in rail and in the internal market for rail services; the complex economic issues underlying vertical separation (unbundling) and pricing options; and the methods, potential and problems of introducing competition in rail freight and in passenger services. Market failures in the rail sector are several (natural monopoly, economies of density, safety and asymmetries of information), exacerbated by no less than 7 technical and legal barriers precluding the practical operation of an internal rail market. The EU choice to opt for vertical unbundling (with benefits similar in nature as in other network industries e.g. preventing opaque cross-subsidisation and greater cost revelation) risks the emergence of considerable coordination costs. The adoption of marginal cost pricing is problematic on economic grounds (drawbacks include arbitrary cost allocation rules in the presence of large economies of scope and relatively large common costs; a non-optimal incentive system, holding back the growth of freight services; possibly anti-competitive effects of two-part tariffs). Without further detailed harmonisation, it may also lead to many different systems in Member States, causing even greater distortions. Insofar as freight could develop into a competitive market, a combination of Ramsey pricing (given the incentive for service providers to keep market share) and price ceilings based on stand-alone costs might be superior in terms of competition, market growth and regulatory oversight. The incipient cooperative approach for path coordination and allocation is welcome but likely to be seriously insufficient. The arguments to introduce competition, notably in freight, are valuable and many e.g. optimal cross-border services, quality differentiation as well as general quality improvement, larger scale for cost recovery and a decrease of rent seeking. Nevertheless, it is not correct to argue for the introduction of competition in rail tout court. It depends on the size of the market and on removing a host of barriers; it requires careful PSO definition and costing; also, coordination failures ought to be pre-empted. On the other hand, reform and competition cannot and should not be assessed in a static perspective. Conduct and cost structures will change with reform. Infrastructure and investment in technology are known to generate enormous potential for cost savings, especially when coupled with the EU interoperability programme. All this dynamism may well help to induce entry and further enlarge the (net) welfare gains from EU railway reform. The paper ends with a few pointers for the way forward in EU rail reform.