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Eco-Efficiency and Eco-Productivity Change Over Time in a Multisectoral Economic System 多部门经济系统中生态效率和生态生产力随时间的变化
Pub Date : 2013-07-17 DOI: 10.2139/ssrn.2316142
B. Mahlberg, M. Luptácik
We measure eco-efficiency of an economy by means of an augmented Leontief input–output model extended by constraints for primary inputs. Using a multi-objective optimisation model the eco-efficiency frontier of the economy is generated. The results of these multi-objective optimisation problems define eco-efficient virtual decision making units (DMUs). The eco-efficiency is obtained as a solution of a data envelopment analysis (DEA) model with virtual DMUs defining the potential and a DMU describing the actual performance of the economy. This procedure is then extended to an intertemporal approach in the spirit of the Luenberger productivity indicator. This indicator permits decomposing eco-productivity change into eco-efficiency change and eco-technical change. The indicator is then further decompounded in a way that enables us to examine the contributions of individual production factors, undesirable as well as desirable outputs to eco-productivity change over time. For illustration purposes the proposed model is applied to investigate eco-productivity growth of the Austrian economy.
我们通过扩充Leontief投入产出模型来衡量一个经济体的生态效率。利用多目标优化模型,生成了经济的生态效率边界。这些多目标优化问题的结果定义了生态高效的虚拟决策单元(dmu)。生态效率是一个数据包络分析(DEA)模型的解,其中虚拟DMU定义经济的潜力,DMU描述经济的实际表现。然后,按照Luenberger生产力指标的精神,将这一程序扩展为跨期方法。该指标允许将生态生产力变化分解为生态效率变化和生态技术变化。然后进一步分解该指标,使我们能够检查个别生产因素、不希望的和理想的产出对生态生产力随时间变化的贡献。为了说明目的,提出的模型被应用于调查奥地利经济的生态生产力增长。
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引用次数: 63
The Sufficiency Economy: Envisioning a Prosperous Way Down 充足经济:展望繁荣之路
Pub Date : 2012-11-13 DOI: 10.2139/SSRN.2210170
S. Alexander
After briefly summarising the critique of growth, this essay describes in some detail an alternative economic system, which I will call ‘the sufficiency economy.’ This term is typically applied to so-called ‘developing economies,’ which either have not yet industrialised or are still in the early phases of industrialisation. These economies are sometimes called sufficiency economies because they do not or cannot produce material abundance, or do not seek material abundance. Instead, sufficiency economies are focused on meeting mostly local needs with mostly local resources, without the society being relentlessly driven to expand by the growth-focused ethics of profit-maximisation. My point of differentiation in this essay will be to consider the notion of a sufficiency economy within the context of the most highly developed regions of the world – where an economics of sufficiency is most desperately needed – and to explore what such an economy would look like, how it might function, and how the transition to such an economy might transpire.Rather than progress being seen as a movement toward ever-increasing material affluence, the sufficiency economy aims for a world in which everyone’s basic needs are modestly but sufficiently met, in an ecologically sustainable, highly localised, and socially equitable manner. When material sufficiency is achieved in these ways, further growth would not continue to be a priority. Instead, human beings would realise that they were free from the demands of continuous economic activity and could therefore dedicate more of their energies to non-materialistic pursuits, such as enjoying social relationships, connecting with nature, exploring the mysteries of the universe, or engaging in peaceful, creative activity of various sorts.
在简要总结了对增长的批判之后,本文详细描述了另一种经济体系,我称之为“充足经济”。这个词通常用于所谓的“发展中经济体”,这些经济体要么尚未工业化,要么仍处于工业化的早期阶段。这些经济有时被称为充足经济,因为它们没有或不能产生物质丰富,或者不寻求物质丰富。相反,自给自足经济主要侧重于用主要是当地的资源满足主要是当地的需求,而不是由以增长为中心的利润最大化伦理无情地推动社会扩张。在这篇文章中,我的区别观点将是在世界上最高度发达地区的背景下考虑自给自足经济的概念——在这些地区最迫切需要自给自足的经济学——并探索这种经济将是什么样子,它可能如何运作,以及向这种经济的过渡将如何发生。自给自足经济的目标不是将进步视为一种物质日益丰富的运动,而是以生态可持续、高度本地化和社会公平的方式,使每个人的基本需求得到适度但充分的满足。当以这些方式实现物质充足时,进一步增长将不再是优先事项。相反,人类会意识到他们从持续的经济活动的需求中解放出来,因此可以将更多的精力投入到非物质的追求中,例如享受社会关系,与自然联系,探索宇宙的奥秘,或从事各种和平的创造性活动。
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引用次数: 7
Internal and Sustainable Growth Rates in the Presence of Scale Economies 规模经济存在下的内部和可持续增长率
Pub Date : 2012-08-28 DOI: 10.2139/ssrn.2142160
Richard D. Marcus
Corporate finance theory provides both precise and approximate formulas for the maximum growth rate of a firm, typically called the internal growth rate (when no external funds are permitted) and the sustainable growth rate (when the capital structure is held fixed). The assumption in these approaches is that the firm experiences constant returns to scale in that sales and assets grow in parallel. Yet empirical studies repeatedly find that the production functions facing firm display modest increasing returns to scale in that seldom must assets double to double sales. Firms can grow faster when bound to using only internal sources of funding and when firms maintain a constant debt-equity ratio in the presence of scale economies. Using homogeneous production functions, the revised formulas increase the maximum rate of growth that a firm could achieve and have the traditional formulas as a special case of the more general formulas for internal and sustainable growth.
公司金融理论为公司的最大增长率提供了精确和近似的公式,通常称为内部增长率(当不允许外部资金时)和可持续增长率(当资本结构保持固定时)。这些方法的假设是,在销售和资产平行增长的情况下,公司的规模回报是恒定的。然而,实证研究反复发现,企业面临的生产函数表现出适度的规模回报递增,因为很少需要资产翻倍到销售额翻倍。当企业被限制只使用内部资金来源时,当企业在规模经济的存在下保持恒定的债务-权益比率时,企业可以增长得更快。使用同质生产函数,修订的公式增加了企业可以实现的最大增长率,并将传统公式作为内部和可持续增长的更一般公式的特殊情况。
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引用次数: 2
How Much Does Natural Resource Extraction Really Diminish National Wealth? The Implications of Discovery 自然资源开采究竟在多大程度上减少了国民财富?发现的意义
Pub Date : 2012-03-01 DOI: 10.2139/ssrn.2102716
A. Gelb, K. Kaiser, L. Viñuela
The paper considers the process of discovery for subsoil resources, including both hard minerals and hydrocarbons and estimates its magnitude in recent years, as derived from the sum of extraction and changes in proven reserves. Spurred on by technology change and strong market conditions, discovery has been substantial for most minerals. The value of discovered reserves is high relative to the costs of exploration, particularly when low social discount rates are used to value potential production in the future. Discovery is therefore valuable and should be considered as adding to national wealth through increases in proven reserves. Many countries can continue to generate resource rents far longer than indicated by current reserve estimates and this has implications for decisions on how to plan to spend or save rents. With the high response of discovery to prices and technology, environmental constraints (climate change, water) are more likely than the actual exhaustion of resource deposits to limit resource-based development. The divergence between private and social valuation of discoveries may also justify measures taken by countries to encourage exploration, including through the provision of geo-scientific data to increase interest in discovery as well as competition among mining companies. More information is needed on the payoff to such investments, some of which are supported by donors. However, exploration is, of course, only a slice of the resource value chain. Many countries will need to improve management along the entire chain if resource wealth is to benefit their development. [CGD Working Paper]. URL:[http://www.cgdev.org/files/1426040_file_Gelb_Kaiser_Vinuela_extraction_FINAL.pdf].
本文考虑了地下资源的发现过程,包括硬矿物和碳氢化合物,并根据采掘和探明储量变化的总和估计了近年来的规模。在技术变革和强劲的市场条件的推动下,大多数矿产的发现都是重大的。与勘探成本相比,已发现储量的价值较高,特别是当使用较低的社会贴现率来评估未来的潜在产量时。因此,发现是有价值的,应该通过增加已探明储量来增加国家财富。许多国家产生资源租金的时间可以比目前的储量估计数所显示的时间长得多,这对如何计划支出或节省租金的决定产生影响。由于发现对价格和技术的高度反应,环境限制(气候变化、水)比资源储量的实际枯竭更有可能限制以资源为基础的开发。私人和社会对发现的评价之间的差异也可以证明各国采取措施鼓励勘探是合理的,包括通过提供地球科学数据来增加对发现的兴趣以及矿业公司之间的竞争。需要更多关于这些投资的回报的资料,其中一些是由捐助者支助的。当然,勘探只是资源价值链的一小部分。如果资源财富有利于发展,许多国家将需要改善整个链条的管理。[CGD工作文件]。URL: [http://www.cgdev.org/files/1426040_file_Gelb_Kaiser_Vinuela_extraction_FINAL.pdf]。
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引用次数: 17
On the Social Representations of Intergenerational Equity 论代际公平的社会表征
Pub Date : 2012-02-26 DOI: 10.2139/ssrn.2011359
Julia M. Puaschunder
Social Representations describe the genesis of collective ideas, social norms and general moods. By capturing social perceptions of socio-economic change in times of crises, social representations allow predictions about future behavior of social masses during economic upheaval. The social representations of intergenerational equity were retrieved from 110 speeches, interviews and conversations with leaders, practitioners, experts and students representing academia, business, economics, finance, international organizations, media, politics, public affairs and religion at a European future conference during the late summer of 2011. Social representations on intergenerational equity comprised of unsustainable pension systems in the light of aging, shrinking Western populations, overindebtedness in the wake of governmental deficit spending and ecologic decline related to climate change and unsustainable consumption patterns. Stakeholder views of intergenerational equity included environmentalism on public officials’ and international organizations’ agendas. Politicians connected intergenerational justice to human rights. The 2008/09 World Financial Crisis impacted intergenerational equity by stressing overindebtedness and uncertainty. Nationalism and protectionism appeared to be growing in the finance and corporate worlds during the Eurozone Eurobond negotiations. Intergenerational environmentalism features associations on ecologic sustainability, climate change and sustainable consumption patterns. Global solutions for complex common goods dilemmas and international remedies back intergenerational justice. Promoting solidarity, ethicality and social responsibility but also innovations and future investment are intergenerational equity implementation prerequisites. Intergenerational equity is obtained by efficiency, humane values and behavioral changes regarding conscientious consumption. Long-term solutions hold institutional regulation and foresighted taxation but also open debates informing global leaders of complex intertemporal frictions.
社会表征描述了集体观念、社会规范和一般情绪的起源。通过捕捉危机时期社会经济变化的社会观念,社会表征可以预测经济动荡时期社会大众的未来行为。在2011年夏末的一次欧洲未来会议上,代际公平的社会表现从110个演讲、访谈和与学术界、商业、经济、金融、国际组织、媒体、政治、公共事务和宗教的领导人、从业者、专家和学生的对话中检索出来。代际公平的社会表现包括老龄化导致的不可持续的养老金制度、西方人口减少、政府赤字支出导致的过度负债、与气候变化和不可持续的消费模式有关的生态衰退。利益相关者对代际公平的看法包括政府官员和国际组织议程上的环境保护主义。政治家们将代际正义与人权联系起来。2008/09年世界金融危机通过强调过度负债和不确定性,影响了代际公平。在欧元区欧元债券谈判期间,金融和企业界的民族主义和保护主义似乎有所抬头。代际环境主义在生态可持续性、气候变化和可持续消费模式方面具有重要的联系。复杂的共同利益困境的全球解决方案和国际补救措施支持代际正义。促进团结、道德和社会责任以及创新和未来投资是实现代际公平的先决条件。代际公平是通过效率、人文价值和尽责消费的行为改变来实现的。长期解决方案包括制度监管和有远见的税收,但也包括公开辩论,让全球领导人了解复杂的跨期摩擦。
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引用次数: 42
Climate Change Adaptation and Real Option Evaluation 气候变化适应与实物期权评估
Pub Date : 2011-09-14 DOI: 10.2139/ssrn.2046955
P. Scandizzo
This report illustrates the application of a (relatively) new method to guide decision making under high (and unknowable) levels of uncertainty. The approach allows for the identification of robust policy options that are economically beneficial under different scenarios and varying levels uncertainty. Option value techniques are commonly employed in the finance literature to identify investment decisions that are resilient across a spectrum of outcomes. The methods are technically advanced and conceptually complex but they can be applied with ease with the wide availability of specialized software. The results of a pilot exercise conducted in Campeche suggest that even though global estimates for many costs have been used (such as sea wall construction) the magnitudes are so large that the results seem to be robust and are unlikely to alter dramatically with more refined data. In general options that are modular, build capacity and flexibility are found to lead to more robust and prudent adaptation options. It also suggests that studies at this scale are best conducted ahead of project design – even at the programmatic level - to guide the identification of suitable adaptation approaches.
本报告说明了一种(相对)新的方法在高度不确定性(和不可知的)水平下指导决策制定的应用。该方法允许确定在不同情景和不同程度的不确定性下具有经济效益的有力政策选择。在金融文献中,期权价值技术通常用于识别在一系列结果中具有弹性的投资决策。这些方法在技术上是先进的,在概念上是复杂的,但它们可以很容易地应用与广泛可用的专门软件。在坎佩切进行的一项试点工作的结果表明,尽管对许多成本(如海堤建设)进行了全球估算,但其规模如此之大,以至于结果似乎是可靠的,不太可能随着更精确的数据而发生显著变化。一般而言,模块化、建设能力和灵活性的备选方案可导致更有力和审慎的适应备选方案。它还表明,这种规模的研究最好在项目设计之前进行——甚至在规划层面——以指导确定合适的适应方法。
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引用次数: 9
Carbon Emissions and Economic Growth: The Iranian Experience 碳排放与经济增长:伊朗的经验
Pub Date : 2010-07-06 DOI: 10.2139/ssrn.1635233
Farhad Sanjari, S. Delangizan
This paper attempts to investigate the causal relationship among CO2 emissions and economic growth for Iranian economy. The sample period covered annual data during 1965-2004. By applying the techniques of unit-root test and the long-run Granger non-causality test proposed by Toda and Yamamoto (1995), we investigate the causal relationship between the economic growth and CO2 emissions. The results of unit root tests show that variables are I (1) and results of Granger causality indicate a unidirectional causality from gross domestic product per capita to CO2 emissions.
本文试图探讨伊朗经济中二氧化碳排放与经济增长之间的因果关系。样本期涵盖了1965-2004年的年度数据。运用Toda和Yamamoto(1995)提出的单位根检验和长期格兰杰非因果检验技术,研究了经济增长与二氧化碳排放之间的因果关系。单位根检验结果表明变量为I(1),格兰杰因果关系结果表明人均国内生产总值与二氧化碳排放量之间存在单向因果关系。
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引用次数: 5
Is the 'Curse of Natural Resources' Really a Curse? “自然资源的诅咒”真的是诅咒吗?
Pub Date : 2008-03-20 DOI: 10.2139/ssrn.1270606
P. Peretto
This paper takes a new look at the long-run implications of resource abundance. Using a Schumpeterian growth model that yields an analytical solution for the transition path, it derives conditions under which the curse of natural resources occurs and is in fact a curse, meaning that welfare falls, conditions under which it occurs but it is not a curse, meaning that growth slows down but welfare rises nevertheless, and conditions under which it does not occur at all. An effective way to summarize the results is to picture growth and welfare as hump-shaped functions of resource abundance. The property that the peak of growth occurs earlier than the peak of welfare captures the crucial role of initial consumption, which rises with resource abundance, and is an important reminder that the welfare effect of resource abundance depends on the whole path of consumption, not on a summary statistic of its slope. Growth regressions that ignore the endogeneity of initial income do not provide sufficient information to assess whether resource abundance is bad even if one could prove beyond reasonable doubt that the relation is indeed negative and causal. Recent evidence that the correlation is actually positive should make us even more skeptical of policy advice based on the curse logic.
本文对资源丰富的长期影响进行了新的审视。利用熊彼特增长模型得出了过渡路径的解析解,得出了自然资源的诅咒发生的条件,这实际上是一个诅咒,意味着福利下降,它发生的条件,但它不是一个诅咒,意味着增长放缓,但福利上升,以及它根本不发生的条件。总结这些结果的一个有效方法是把增长和福利描绘成资源丰度的驼峰形函数。经济增长的峰值早于福利的峰值,这一特性抓住了初始消费的关键作用,初始消费随着资源丰富度的增加而上升,这是一个重要的提醒,即资源丰富度的福利效应取决于消费的整个路径,而不是其斜率的汇总统计。忽略初始收入内生性的增长回归不能提供足够的信息来评估资源丰度是否不好,即使人们可以毫无疑问地证明这种关系确实是负的和因果的。最近的证据表明,这种相关性实际上是正的,这应该使我们更加怀疑基于诅咒逻辑的政策建议。
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引用次数: 11
Appreciating a World Heritage Site Using Multisensory Elements: A Case Study in Kinabalu Park, Sabah, Malaysia 运用多感官元素欣赏世界遗产:以马来西亚沙巴州京那巴卢公园为例
Pub Date : 1900-01-01 DOI: 10.1051/SHSCONF/20141201080
R. Zainol
Nature based tourism products offer valuable experience to visitors which can only be appreciated or stimulated using sensory elements. Visual, sound, taste, smell, touch and mobility are sensory elements that are able to enhance visitors’ experience in any particular destination. However, some destinations might not provide all the elements. Therefore this study’s objective is to assess the role of multisensory experience in appreciating the natural heritage of Kinabalu Park. Participant observation is used to carry out the assessment. Findings show visitors are able to appreciate Kinabalu Park using five main sensory elements namely visual, sound, smell, feelings and mobility. The only one that is not available is taste. This is parallel to the products offered in Kinabalu Park which do not allow visitors to pluck any branches or taste any of its forest products. Multisensory elements enhance visitors experience through the senses which will be memorable in years to come. Learning will take place not immediately but through recalling of memories.
以自然为基础的旅游产品为游客提供宝贵的体验,这些体验只能通过感官元素来欣赏或刺激。视觉、听觉、味觉、嗅觉、触觉和移动性是能够增强游客在任何特定目的地体验的感官元素。然而,一些目的地可能不提供所有的元素。因此,本研究的目的是评估多感官体验在欣赏基纳巴卢公园自然遗产中的作用。采用参与式观察进行评估。调查结果显示,游客可以通过视觉、听觉、嗅觉、感觉和机动性这五种主要感官元素来欣赏京那巴卢公园。唯一不可用的是味道。这与基纳巴卢公园提供的产品类似,那里不允许游客采摘任何树枝或品尝任何森林产品。多感官元素通过感官增强游客的体验,这将在未来几年令人难忘。学习不是立即发生的,而是通过回忆发生的。
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引用次数: 5
Green New Deal Leadership Determinants of the 21st Century: Teaching Economics of the Environment 21世纪的绿色新政领导决定因素:环境经济学教学
Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3817205
Julia M. Puaschunder
The future leadership on the Green New Deal (GND) will depend on teaching core concepts of the economics of the environment and evaluating the success of the transition implementation by monitoring and evaluation. The GND operates within the framework of the United Nations Environment Programme (UNEP) since 2008 to create jobs in green industries, thus boosting the world economy and curbing climate change at the same time. In 2019 over 600 organizations submitted a letter to the U.S. Congress declaring support for policies to reduce greenhouse gas emissions. This includes ending fossil fuel extraction and subsidies, transitioning to 100% clean renewable energy by 2035, expanding public transportation, and strict emission reductions rather than reliance on carbon emission trading. This paper describes the implementation of the GND but also underlying efforts to teach GND components for building a cadre of future environmental economists.
绿色新政(GND)的未来领导力将取决于教授环境经济学的核心概念,并通过监测和评估来评估转型实施的成功。自2008年以来,绿色新政在联合国环境规划署(UNEP)的框架内运作,旨在为绿色产业创造就业机会,从而促进世界经济发展,同时遏制气候变化。2019年,600多个组织向美国国会提交了一封信,宣布支持减少温室气体排放的政策。这包括停止化石燃料开采和补贴,到2035年过渡到100%清洁可再生能源,扩大公共交通,严格减少排放,而不是依赖碳排放交易。本文描述了GND的实施,以及为培养未来的环境经济学家骨干而教授GND组成部分的潜在努力。
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引用次数: 0
期刊
SRPN: Sustainable Growth (Topic)
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