894 resultados para limits to growth


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This paper explores how the liberal tradition of political thought has dealt with the prospect of limits to economic growth and how it should approach this issue in the future. Using Andrew Moravcsik’s explanatory liberal theory, it finds that the commitment of governments to growth stems primarily from the aggregation of societal preferences. The arguments of liberal thinkers who have grappled with the issue of growth are then examined to gain a deeper theoretical understanding of the relationship between liberal democracy and growth. These include John Stuart Mill, for whom a non-growing economy was essential for overcoming the tension between liberty and equality; Ronald Dworkin who argues that growth is a derivative means to further more fundamental ends; and Marcel Wissenburg who suggests that it is legitimate for liberal democracies to limit the preference for growth if it risks undermining liberal norms and institutions. Using these theoretical insights, it is argued that environmental degradation, which is partly driven by growth, now threatens fundamental liberal commitments to state neutralism, utilitarianism, inalienable individual rights and above all human autonomy. Therefore, liberal democratic states not only can, but must move towards a post-growth economy to secure these objectives into the future.

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This paper proposes a framework to evaluate post-growth policy instruments which gauges their capacity to lessen the pressure for growth emanating from the labour market and the state’s contradictory legitimisation and accumulation imperatives, whilst increasing societal well-being and reducing the biophysical throughput of the economy. It is argued that the most effective policies to do this are measures to reduce average working hours, expand low productivity sectors and reduce inequality. Specific policies instruments include public sector expansion and the promotion of cooperatives, the introduction of citizens’ basic income schemes, environmental tax reform, the abolition of fossil fuel subsidies, reforms to monetary policy, financial regulatory reform and the introduction of alternative measures of progress to gross domestic product.

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Transcranial direct current stimulation (tDCS) is a method of non-invasive brain stimulation widely used to modulate cognitive functions. Recent studies, however, suggests that effects are unreliable, small and often non-significant at least when stimulation is applied in a single session to healthy individuals. We examined the effects of frontal and temporal lobe anodal tDCS on naming and reading tasks and considered possible interactions with linguistic activation and selection mechanisms as well possible interactions with item difficulty and participant individual variability. Across four separate experiments (N, Exp 1A = 18; 1B = 20; 1C = 18; 2 = 17), we failed to find any difference between real and sham stimulation. Moreover, we found no evidence of significant effects limited to particular conditions (i.e., those requiring suppression of semantic interference), to a subset of participants or to longer RTs. Our findings sound a cautionary note on using tDCS as a means to modulate cognitive performance. Consistent effects of tDCS may be difficult to demonstrate in healthy participants in reading and naming tasks, and be limited to cases of pathological neurophysiology and/or to the use of learning paradigms.

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This paper presents the philosophies and practices of ‘Laura’, a young English community liaison worker and former religious studies teacher who has recently converted to Islam. Drawing on data generated from a qualitative and predominantly interview‐based research project that investigated issues of pedagogy and social justice in English schools, the focus is on Laura’s efforts to support Muslim girls through an Islamic discussion group. The paper highlights how Laura draws on Islamic beliefs to support the girls’ questioning of patriarchal interpretations of Islam within their Pakistani immigrant community. The paper also provides insight, however, into some of the tensions and limitations of Laura’s liberatory approach in terms of her positioning as white, western, and middle‐class. Against this backdrop, a self‐reflexive approach that is sensitive to how ‘ethnic‐specific sociability’ shapes understandings and enactments of gender is advocated. Such an approach is presented as central in considering how spaces of gender justice might be mobilised within community environments where unprecedented levels of multi‐cultural fragmentation and diversity have amplified tensions and conflict between and amongst racial and religious groups.

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The velvet belly lantern shark, Etmopterus spinax (Squaliformes: Etmopteridae), is a small-sized squalid shark commonly found in deep waters off the Portuguese coast, mainly on soft bottoms. In this study, 67 research cruise bottom trawl tows (with 1-hour duration) were carried out at depths that ranged from 84 to 786 m. A total of 396 specimens (192 males and 204 females) were caught, with total lengths and ages ranging, respectively, from 10.2 to 32.9 cm and 0 to 7 years for males and from 9.8 to 41.1 cm and 0 to 10 years for females. Size, age, sex and maturity stages were found to be correlated with depth, with the larger, older and mostly mature specimens occurring predominantly at greater depths. There seems to be a depth-related migration, where the pregnant females migrate from deeper mating grounds to shallower nursery grounds. The sex ratios were relatively similar in the shallower strata, but females dominated at more than 600 m and were exclusive at more than 700 m. Fishing-related mortality may have complex and significant repercussions on this species, given that commercial fisheries are impacting different segments of this population differently.

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Este trabajo tiene como objetivo hacer una revisión teórica desde los inicios de la Teoría General de Sistemas, hasta el desarrollo de la dinámica de sistemas, todo lo que estas dos teorías plantean, además de muchas otras teorías de las cuales estas se encuentran rodeadas y conectadas muy cercanamente, ya que partiendo del planteamiento que hizo el biólogo Ludwig Von Bertalanffy se derivaron diversas corrientes de pensamiento, todas alrededor del enfoque y pensamiento de sistemas, y de la cual se deriva la más importante para nosotros en este trabajo de la cual es padre el Ingeniero Jay Wright Forrester, la Dinámica de Sistemas. Muchas de estas otras teorías tienen como objetivo generar estrategias de cambio en las organizaciones mediante diferentes metodologías, pero todas con el fin de alcanzar un desempeño óptimo en los procesos que son realizados en las organizaciones. Este proyecto es planteado ante la necesidad de tener un amplio conocimiento teórico de todo lo que conllevan los planteamientos de la Dinámica de Sistemas los cuales van de la mano junto con el pensamiento sistémico y el modelamiento organizacional, el cual veremos cómo es desarrollado desde el enfoque de la Dinámica de Sistemas a través de distintos modelos y en la actualidad herramientas informáticas tales como software diseñados exclusivamente para el modelamiento desde la Dinámica de Sistemas.

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Desde a publicação do livro Silent Spring, 1962, de Rachel Carson, do livro The Limits to Growth, 1972, do Clube de Roma e do impacto provocado pelo Relatório Brundtland, Our Common Future, 1987, pela World Commission on Environment and Development, que os organismos internacionais se envolvem em parcerias e assinam declarações de compromisso com a Educação Ambiental para o Desenvolvimento Sustentável – EADS. O objetivo do presente artigo é realizar uma narrativa sobre os eventos dedicados à EADS, com início na Conferência de Estocolmo até à Conferência do Rio+20. O estudo teve como base metodológica uma revisão crítica da literatura. Concluiu-se que a sociedade tomou maior consciência sobre os problemas ambientais a partir de 1970. Despontaram as primeiras respostas político-administrativas na Conferência de Estocolmo e, mais tarde, publicou-se a Informação Brundtland pela equipa interdisciplinar de experts em meio ambiente. Daqui resultaram o Tratado de Bem-estar (garantia dos direitos mínimos aos cidadãos pelo Estado) e o conceito de Desenvolvimento Sustentável. Surgiu assim a solidariedade social para com o futuro da humanidade, que implicou o princípio de “não hipotecar os recursos das gerações futuras”. Na Conferência do Rio a EADS foi plenamente aceite e divulgada pelo mundo. Todavia, com a entrada do novo milénio, a atenção dada à EADS regrediu significativamente.

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This analysis of the emergence since 2008 of the green economy agenda and the related idea of ‘green growth’ focusses upon the articulation of these discourses within key international economic and environmental institutions and evaluates whether this implies the beginning of an institutional transformation towards an ecologically sustainable world economy. The green economy may have the capacity to help animate a transition away from current socially and ecologically unsustainable patterns of economic growth only if notions of green growth can be discursively separated from green economy, strong articulations of green economy become dominant, and alternative measures of progress to gross domestic product are widely adopted. The concept of ‘rearticulation’, found in post-structural discourse theory, is proposed to guide this transition. This offers a framework to reconstruct notions of prosperity, progress, and security whilst avoiding direct and disempowering discursive conflict with currently hegemonic pro-growth discourses.

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Whole transcriptome shotgun sequencing (RNA-seq) was used to assess the transcriptomic response of the toxic cyanobacterium Microcystis aeruginosa during growth with low levels of dissolved inorganic nitrogen (low N), low levels of dissolved inorganic phosphorus (low P), and in the presence of high levels of high molecular weight dissolved organic matter (HMWDOM). Under low N, one third of the genome was differentially expressed, with significant increases in transcripts observed among genes within the nir operon, urea transport genes (urtBCDE), and amino acid transporters while significant decreases in transcripts were observed in genes related to photosynthesis. There was also a significant decrease in the transcription of the microcystin synthetase gene set under low N and a significant decrease in microcystin content per Microcystis cell demonstrating that N supply influences cellular toxicity. Under low P, 27% of the genome was differentially expressed. The Pho regulon was induced leading to large increases in transcript levels of the alkaline phosphatase phoX, the Pst transport system (pstABC), and the sphX gene, and transcripts of multiple sulfate transporter were also significantly more abundant. While the transcriptional response to growth on HMWDOM was smaller (5–22% of genes differentially expressed), transcripts of multiple genes specifically associated with the transport and degradation of organic compounds were significantly more abundant within HMWDOM treatments and thus may be recruited by Microcystis to utilize these substrates. Collectively, these findings provide a comprehensive understanding of the nutritional physiology of this toxic, bloom-forming cyanobacterium and the role of N in controlling microcystin synthesis.

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Few states have been less uncomfortable with the relationship they have with the EU than the United Kingdom as a member and Turkey as an associate and would-be member. Both states currently find themselves questioning the substance and future of these relationships with domestic actors and, notably in the Turkish case, external EU voices actively advocating alternatives. While much discussion, particularly in the UK case, has focused on the advantages and disadvantages of particular existing arrangements (e.g. European Economic Area, Swiss bilateralism), this paper considers the broader principles and practices that the EU has to date either explicitly developed or implicitly established to govern the nature and substance of alternatives to [full] EU membership. It assesses the principled, practical and political limitations that exist in establishing alternatives to full membership for states seeking – or having sought for them – the accommodation of their exceptionalism. In doing so the paper considers the potential limits to a renegotiated EU membership for the UK and to an alternative short of full membership for Turkey. It also reflects on the precedent-setting consequences of any new arrangements that the EU might reach with either state for what forms membership and a relationship short of membership might take in the future.

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Le développement accéléré des technologies de communication, de saisie et de traitement de l’information durant les dernières années décennies ouvre la voie à de nouveaux moyens de contrôle social. Selon l’auteur Gary Marx ceux-ci sont de nature non coercitive et permettent à des acteurs privés ou publics d’obtenir des informations personnelles sur des individus sans que ceux-ci y consentent ou mêmes sans qu’ils en soient conscients. Ces moyens de contrôle social se fondent sur certaines valeurs sociales qui sont susceptibles de modifier le comportement des individus comme le patriotisme, la notion de bon citoyen ou le volontarisme. Tout comme les moyens coercitifs, elles amènent les individus à adopter certains comportements et à divulguer des informations précises. Toutefois, ces moyens se fondent soit sur le consentement des individus, consentement qui est souvent factice et imposée, soit l’absence de connaissance du processus de contrôle par les individus. Ainsi, l’auteur illustre comment des organisations privées et publiques obtiennent des informations privilégiées sur la population sans que celle-ci en soit réellement consciente. Les partisans de tels moyens soulignent leur importance pour la sécurité et le bien publique. Le discours qui justifie leur utilisation soutient qu’ils constituent des limites nécessaires et acceptables aux droits individuels. L’emploi de telles méthodes est justifié par le concept de l’intérêt public tout en minimisant leur impact sur les droits des individus. Ainsi, ces méthodes sont plus facilement acceptées et moins susceptibles d’être contestées. Toutefois, l’auteur souligne l’importance de reconnaître qu’une méthode de contrôle empiète toujours sur les droits des individus. Ces moyens de contrôle sont progressivement intégrés à la culture et aux modes de comportement. En conséquence, ils sont plus facilement justifiables et certains groupes en font même la promotion. Cette réalité rend encore plus difficile leur encadrement afin de protéger les droits individuels. L’auteur conclut en soulignant l’important décalage moral derrière l’emploi de ces méthodes non-coercitives de contrôle social et soutient que seul le consentement éclairé des individus peut justifier leur utilisation. À ce sujet, il fait certaines propositions afin d’encadrer et de rendre plus transparente l’utilisation de ces moyens de contrôle social.

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Objectives: To clarify the role of growth monitoring in primary school children, including obesity, and to examine issues that might impact on the effectiveness and cost-effectiveness of such programmes. Data sources: Electronic databases were searched up to July 2005. Experts in the field were also consulted. Review methods: Data extraction and quality assessment were performed on studies meeting the review's inclusion criteria. The performance of growth monitoring to detect disorders of stature and obesity was evaluated against National Screening Committee (NSC) criteria. Results: In the 31 studies that were included in the review, there were no controlled trials of the impact of growth monitoring and no studies of the diagnostic accuracy of different methods for growth monitoring. Analysis of the studies that presented a 'diagnostic yield' of growth monitoring suggested that one-off screening might identify between 1: 545 and 1: 1793 new cases of potentially treatable conditions. Economic modelling suggested that growth monitoring is associated with health improvements [ incremental cost per quality-adjusted life-year (QALY) of pound 9500] and indicated that monitoring was cost-effective 100% of the time over the given probability distributions for a willingness to pay threshold of pound 30,000 per QALY. Studies of obesity focused on the performance of body mass index against measures of body fat. A number of issues relating to human resources required for growth monitoring were identified, but data on attitudes to growth monitoring were extremely sparse. Preliminary findings from economic modelling suggested that primary prevention may be the most cost-effective approach to obesity management, but the model incorporated a great deal of uncertainty. Conclusions: This review has indicated the potential utility and cost-effectiveness of growth monitoring in terms of increased detection of stature-related disorders. It has also pointed strongly to the need for further research. Growth monitoring does not currently meet all NSC criteria. However, it is questionable whether some of these criteria can be meaningfully applied to growth monitoring given that short stature is not a disease in itself, but is used as a marker for a range of pathologies and as an indicator of general health status. Identification of effective interventions for the treatment of obesity is likely to be considered a prerequisite to any move from monitoring to a screening programme designed to identify individual overweight and obese children. Similarly, further long-term studies of the predictors of obesity-related co-morbidities in adulthood are warranted. A cluster randomised trial comparing growth monitoring strategies with no growth monitoring in the general population would most reliably determine the clinical effectiveness of growth monitoring. Studies of diagnostic accuracy, alongside evidence of effective treatment strategies, could provide an alternative approach. In this context, careful consideration would need to be given to target conditions and intervention thresholds. Diagnostic accuracy studies would require long-term follow-up of both short and normal children to determine sensitivity and specificity of growth monitoring.

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Este artigo é uma formalização da crítica à estratégia do crescimento com poupança externa que um de seus autores vem sendo fazendo nos últimos anos. Apesar dos países de renda média serem pobres de capital, os déficits em conta corrente (poupança externa), financiado seja por empréstimos ou por investimentos externos diretos, não irá aumentar a taxa de acumulação de capital ou terá pouco impacto sobre ela, uma vez que os déficits de conta corrente estarão associados taxas de câmbio apreciadas, ordenados e salários aumentados artificialmente e altos níveis de consumo. Consequentemente, a taxa de substituição da poupança externa pela interna será relativamente alta, e o país será obrigado não a investir e crescer, mas a consumir. Apenas quando há grandes oportunidades de investimento, estimuladas por uma ampla diferença entre a taxa de lucro esperada e a taxa de juros de longo prazo, a propensão marginal ao consumo diminuirá suficientemente, a ponto de o lucro adicional originário do fluxo de capital estrangeiro ser usado para investimento, ao invés de para consumo. Neste caso especial, a taxa de substituição de poupança externa pela interna tenderá a ser menor e a poupança interna contribuirá positivamente para o crescimento

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This paper is devoted to an examination of the main issues identified with Brazil’s barriers to growth in the long term. It begins with a decomposition of per capita and total GDP long term growth to identify the main proximate sources of Brazil’s growth deceleration. Most of the analysis in this part concentrates on factors affecting aggregate supply. The reason for this approach is that, within certain limits past experience reveals that it is easy to stimulate aggregate demand via fiscal and monetary stimuli in Brazil. The risk is on bumping into production capacity barriers, i.e., supply constraints. Five substantially diversified but interconnected issues have been raised in the literature as supply constraints, many of which associated to a rate of savings lower than deemed necessary for sustaining faster growth: the tax burden, institutional factors, infrastructure, finance and education. Accordingly, the paper also deals with the issues of a high an increasing tax burden, institutional shortcomings and policy settings, insufficient investment in infrastructure, insufficient long term financing, and educational shortcomings, as growth impediments. A survey of policies aimed at removing the barriers to growth thus identified is presented next. The paper concludes by bringing again to the fore the need to increase savings and investment for growth resumption and by speculating on the growth potential of Brazil, conditional on productivity and investment growth.

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Includes bibliography