Education and the Political Economy of Environmental Protection

We develop a political economy model that might explain the different environmental performance of countries, through educational choices. Individuals decide whether to invest in additional education according to their expectations regarding future environmental quality. They also vote on a tax that will be exclusively used to finance environmental protection. We show that the model may generate multiple equilibria and agents' expectations may be self-fulfilling when the public policy is endogenous. Then, we analyse the long-term implications of a public policy that would favour education and make it possible to select the higher equilibrium.Environmental quality, human capital, education, self-fulfilling prophecies, public policy.

Environmental health and education : Towards sustainable growth

This article aims at investigating the interplay between environmental quality, health and development. We consider an OLG model, where human capital dynamics depend on the current environment, through its impact on children's school attendance. In turn, environmental quality dynamics depend on human capital, through maintenance and pollution. This two-way causality generates a co-evolution of human capital and environmental quality and may induce the emergence of an environmental poverty trap characterized by a low level of human capital and deteriorated environmental quality. Our results are consistent with empirical observation about the existence of Environmental Kuznets Curve. Finally, the model allows for the assessment of an environmental policy that would allow to escape the trap.Education, environmental quality, growth, health.

International Emissions Trading Scheme and European Emissions Trading Scheme : what linkages ?

Simultaneity between commitment periods (2008-2012) of both International and European Emissions Trading schemes may generate distortions in terms of burden distribution among sectors. There will be two levels of trading (a country and an entity level), which both need to be consistent with one another, despite of their different designs. To reach international targets, European governments will adopt an additional policy. It consists in implementing a tax on emissions of non-covered sectors. The tax rates depend on the effort realized within the European market. We propose a modeling of this two-level environmental policy, focusing on the levels of tax rates in each case of linkage. We obtain empirical estimations of the efforts that could be demanded to non-covered sectors and of the price(s) of carbon.Kyoto Protocol, EU-ETS, co-existence of domestic and international emissions trading systems, carbon price, environmental policy.

QuickCSG: Fast Arbitrary Boolean Combinations of N Solids

QuickCSG computes the result for general N-polyhedron boolean expressions without an intermediate tree of solids. We propose a vertex-centric view of the problem, which simplifies the identification of final geometric contributions, and facilitates its spatial decomposition. The problem is then cast in a single KD-tree exploration, geared toward the result by early pruning of any region of space not contributing to the final surface. We assume strong regularity properties on the input meshes and that they are in general position. This simplifying assumption, in combination with our vertex-centric approach, improves the speed of the approach. Complemented with a task-stealing parallelization, the algorithm achieves breakthrough performance, one to two orders of magnitude speedups with respect to state-of-the-art CPU algorithms, on boolean operations over two to dozens of polyhedra. The algorithm also outperforms GPU implementations with approximate discretizations, while producing an output without redundant facets. Despite the restrictive assumptions on the input, we show the usefulness of QuickCSG for applications with large CSG problems and strong temporal constraints, e.g. modeling for 3D printers, reconstruction from visual hulls and collision detection

Applying the water safety plan to water reuse: towards a conceptual risk management framework

The Water Safety Plan (WSP) is receiving increasing attention as a recommended risk management approach for water reuse through a range of research programmes, guidelines and standards. Numerous conceptual modifications of the approach – including the Sanitation Safety Plan, the Water Cycle Safety Plan, and even a dedicated Water Reuse Safety Plan – have been put forward for this purpose. However, these approaches have yet to encapsulate the full spectrum of possible water reuse applications, and evidence of their application to reuse remains limited. Through reviewing the existing evidence base, this paper investigates the potential for adapting the WSP into an approach for water reuse. The findings highlight a need for the management of risk to reflect on, and facilitate the inclusion of, broader contexts and objectives for water reuse schemes. We conclude that this could be addressed through a more integrated approach to risk management, encapsulated within an overarching risk management framework (adapted from the WHO's Framework for safe drinking water) and operationalised through the Water Reuse Safety Plan (WRSP). We also propose that the WRSP should be based on modifications to the existing WSP approach, including an increased emphasis on supporting communication and engagement, and improvements in decision support mechanisms to better account for uncertainty, risk interactions and risk prioritisation

Environmental health and education : Towards sustainable growth

URL des Documents de travail : http://ces.univ-paris1.fr/cesdp/CESFramDP2009.htmClassification JEL : D90, H51, I20, Q01.Documents de travail du Centre d'Economie de la Sorbonne 2009.26 - ISSN : 1955-611XThis article aims at investigating the interplay between environmental quality, health and development. We consider an OLG model, where human capital dynamics depend on the current environment, through its impact on children's school attendance. In turn, environmental quality dynamics depend on human capital, through maintenance and pollution. This two-way causality generates a co-evolution of human capital and environmental quality and may induce the emergence of an environmental poverty trap characterized by a low level of human capital and deteriorated environmental quality. Our results are consistent with empirical observation about the existence of Environmental Kuznets Curve. Finally, the model allows for the assessment of an environmental policy that would allow to escape the trap.Cet article analyse les interactions entre qualité de l'environnement, santé et éducation. Nous considérons une structure à générations imbriquées, où l'accumulation de capital humain dépend des conditions environnementales à travers leur impact sur le niveau d'absentéisme des enfants à l'école. Par ailleurs, la dynamique de l'environnement est directement affectée par les flux de pollution générés par la production mais aussi par les efforts de maintenance engagés par les agents économiques. Cette double causalité génère une évolution jointe du capital humain et de la qualité de l'environnement et peux induire l'émergence d'une trappe caractérisée à la fois par un faible niveau de développement et un environement dégradé. De plus, ces résultats illustrent les débats empiriques qui ont trait à l'existence d'une courbe de Kuznets environnementale. Enfin le modèle propose un cadre permettant d'analyser les conséquences d'une politique environnementale sur l'existence de la trappe

La imbricación vida-poder en el pensamiento de Michel Foucault y Giorgio Agamben

Este artículo pretende analizar la particular relación de imbricación que Michel Foucault y Giorgio Agamben han venido a establecer entre la vida humana y el poder. A tal fin, se propone un recorrido por los dos momentos centrales de su producción que permiten dar cuenta de dicha imbricación: en el caso de Agamben, el referido a la investigación “homo sacer” y, en el de Foucault, el de su investigación en torno de la biopolítica como acontecimiento decisivo de la modernidad. Ambas investigaciones han redundado, entre otros aspectos, pero de manera central, en la configuración de la vida humana en su relación con el poder. En cada uno de los momentos elegidos en las producciones de los filósofos, se analizan las nociones centrales que componen cada investigación: nuda vida, “homo sacer”, estado de excepción y “oikonomía”, en el primer caso; y biopolítica y gubernamentalidad, en el segundo. Finalmente, se contrastan ambas formulaciones filosóficas a fin de sopesar los alcances y las potencialidades que implican frente al análisis que proponen. Este breve ejercicio de análisis sobre la relación entre la vida y el poder en los dos filósofos, pretende poner en evidencia los riesgos a los que nos exponen ciertos presupuestos frecuentes que fundamentan y dan sentido a las ideas y a las prácticas políticas contemporáneas

QuickCSG: Fast Arbitrary Boolean Combinations of N Solids

QuickCSG computes the result for general N-polyhedron boolean expressions without an intermediate tree of solids. We propose a vertex-centric view of the problem, which simplifies the identification of final geometric contributions, and facilitates its spatial decomposition. The problem is then cast in a single KD-tree exploration, geared toward the result by early pruning of any region of space not contributing to the final surface. We assume strong regularity properties on the input meshes and that they are in general position. This simplifying assumption, in combination with our vertex-centric approach, improves the speed of the approach. Complemented with a task-stealing parallelization, the algorithm achieves breakthrough performance, one to two orders of magnitude speedups with respect to state-of-the-art CPU algorithms, on boolean operations over two to dozens of polyhedra. The algorithm also outperforms GPU implementations with approximate discretizations, while producing an output without redundant facets. Despite the restrictive assumptions on the input, we show the usefulness of QuickCSG for applications with large CSG problems and strong temporal constraints, e.g. modeling for 3D printers, reconstruction from visual hulls and collision detection

Life Expectancy and the Environment

We present an OLG model in which life expectancy and environmental quality dynamics are jointly determined. Agents may invest in environmental care, depending on how much they expect to live. In turn, environmental conditions affect life expectancy. As a result, our model produces a positive correlation between longevity and environmental quality, both in the long-run and along the transition path. Eventually, multiple equilibria may also arise: some countries might be caught in a low-life-expectancy / low-environmental-quality trap. This outcome is consistent with stylized facts relating life expectancy and environmental performance measures. We also discuss the welfare and policy implications of the intergenerational externalities generated by individual choices. Finally, we show that our results are robust to the introduction of growth dynamics based on physical or human capital accumulation.environmental quality, life expectancy, poverty traps, human capital