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The Green Peace Dividend: the Effects of Militarization on Emissions and the Green Transition 绿色和平红利:军事化对排放和绿色转型的影响
Pub Date : 2024-08-29 DOI: arxiv-2408.16419
Balázs Markó
This paper argues that military buildups lead to a significant rise ingreenhouse gas emissions and can disrupt the green transition. Identifyingmilitary spending shocks, I use local projections to show that a percentagepoint rise in the military spending share leads to a 1-1.5% rise in totalemissions, as well as a 1% rise in emission intensity. Using a dynamicproduction network model calibrated for the US, I find that a permanent shockof the same size would increase total emissions by between 0.36% and 1.81%, andemission intensity by between 0.22% and 1.5%. The model indicates that fossilfuel and energy-intensive firms experience a considerable expansion in responseto such a shock, which could create political obstacles for the greentransition. Similarly, investment in renewables and green R&D could be crowdedout by defence spending, further hindering the energy transition. Policymakerscan use carbon prices or green subsidies to counteract these effects, thelatter likely being more efficient due to political and social constraints.
本文认为,军事集结会导致温室气体排放量大幅上升,并可能破坏绿色转型。通过识别军费开支冲击,我利用地方预测表明,军费开支份额每上升一个百分点,总排放量就会上升 1-1.5%,排放强度也会上升 1%。通过使用一个为美国校准的动态生产网络模型,我发现同样规模的永久性冲击会使总排放量增加 0.36% 到 1.81%,排放强度增加 0.22% 到 1.5%。模型表明,化石燃料和能源密集型企业在这种冲击下会出现大幅扩张,这可能会给绿色转型带来政治障碍。同样,对可再生能源和绿色研发的投资可能会被国防开支挤出,从而进一步阻碍能源转型。决策者可以利用碳价格或绿色补贴来抵消这些影响,由于政治和社会限制,后者可能更有效。
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引用次数: 0
The Turing Valley: How AI Capabilities Shape Labor Income 图灵谷:人工智能能力如何影响劳动收入
Pub Date : 2024-08-29 DOI: arxiv-2408.16443
Enrique Ide, Eduard Talamàs
Do improvements in Artificial Intelligence (AI) benefit workers? We study howAI capabilities influence labor income in a competitive economy whereproduction requires multidimensional knowledge, and firms organize productionby matching humans and AI-powered machines in hierarchies designed to useknowledge efficiently. We show that advancements in AI in dimensions wheremachines underperform humans decrease total labor income, while advancements indimensions where machines outperform humans increase it. Hence, if AI initiallyunderperforms humans in all dimensions and improves gradually, total laborincome initially declines before rising. We also characterize the AI thatmaximizes labor income. When humans are sufficiently weak in all knowledgedimensions, labor income is maximized when AI is as good as possible in alldimensions. Otherwise, labor income is maximized when AI simultaneouslyperforms as poorly as possible in the dimensions where humans are relativelystrong and as well as possible in the dimensions where humans are relativelyweak. Our results suggest that choosing the direction of AI development cancreate significant divisions between the interests of labor and capital.
人工智能(AI)的进步是否有利于工人?我们研究了人工智能能力如何影响竞争性经济中的劳动收入,在竞争性经济中,生产需要多维度的知识,企业通过将人类和人工智能驱动的机器按照旨在高效利用知识的等级制度进行匹配来组织生产。我们的研究表明,在机器表现不如人类的领域,人工智能的进步会减少总劳动收入,而在机器表现优于人类的领域,人工智能的进步会增加总劳动收入。因此,如果人工智能最初在所有维度上都表现得不如人类,并逐步得到改善,那么总劳动收入最初会先降后升。我们还描述了使劳动收入最大化的人工智能的特征。当人类在所有知识维度上都足够弱时,当人工智能在所有维度上都尽可能优秀时,劳动收入最大化。否则,当人工智能同时在人类相对较强的维度上表现得尽可能差,而在人类相对较弱的维度上表现得尽可能好时,劳动收入最大化。我们的研究结果表明,选择人工智能的发展方向会造成劳动利益和资本利益之间的重大分歧。
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引用次数: 0
A General Framework for Optimizing and Learning Nash Equilibrium 优化和学习纳什均衡的一般框架
Pub Date : 2024-08-29 DOI: arxiv-2408.16260
Di Zhang, Wei Gu, Qing Jin
One key in real-life Nash equilibrium applications is to calibrate players'cost functions. To leverage the approximation ability of neural networks, weproposed a general framework for optimizing and learning Nash equilibrium usingneural networks to estimate players' cost functions. Depending on theavailability of data, we propose two approaches (a) the two-stage approach: weneed the data pair of players' strategy and relevant function value to firstlearn the players' cost functions by monotonic neural networks or graph neuralnetworks, and then solve the Nash equilibrium with the learned neural networks;(b) the joint approach: we use the data of partial true observation of theequilibrium and contextual information (e.g., weather) to optimize and learnNash equilibrium simultaneously. The problem is formulated as an optimizationproblem with equilibrium constraints and solved using a modifiedBackpropagation Algorithm. The proposed methods are validated in numericalexperiments.
现实生活中纳什均衡应用的关键之一是校准博弈者的成本函数。为了充分利用神经网络的近似能力,我们提出了一个利用神经网络估计博弈者成本函数的纳什均衡优化和学习通用框架。根据数据的可得性,我们提出了两种方法:(a)两阶段方法:我们需要棋手策略和相关函数值的数据对,先用单调神经网络或图神经网络学习棋手的成本函数,然后用学习到的神经网络求解纳什均衡;(b)联合方法:我们使用均衡的部分真实观测数据和上下文信息(如天气),同时优化和学习纳什均衡。该问题被表述为带有均衡约束条件的优化问题,并使用改进的后向传播算法求解。所提出的方法在数值实验中得到了验证。
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引用次数: 0
Pareto's Limits: Improving Inequality Estimates in America, 1917 to 1965 帕累托的局限:改进 1917 年至 1965 年美国的不平等估算
Pub Date : 2024-08-29 DOI: arxiv-2408.16861
Vincent Geloso, Alexis Akira Toda
American income inequality, generally estimated with tax data, in the 20thcentury is widely recognized to have followed a U-curve, though debates persistover the extent of this curve, specifically regarding how high the peaks areand how deep the trough is. These debates focus on assumptions about definingincome and handling deductions. However, the choice of interpolation methodsfor using tax authorities' tabular data to estimate the income of the richestcentiles -- especially when no micro-files are available -- has not beendiscussed. This is crucial because tabular data were consistently used from1917 to 1965. In this paper, we show that there is an alternative to thestandard method of Pareto Interpolation (PI). We demonstrate that thisalternative -- Maximum Entropy (ME) -- provides more accurate results and leadsto significant revisions in the shape of the U-curve of income inequality.
人们普遍认为,20 世纪美国的收入不平等(一般通过税收数据估算)呈现出一条 U 型曲线,但关于这条曲线的范围,特别是关于峰值有多高和谷值有多深的争论一直存在。这些争论主要集中在对收入的定义和扣除额的处理上。然而,在使用税务机关的表格数据估算最富裕阶层的收入时,尤其是在没有微观档案的情况下,如何选择内插法还没有得到讨论。这一点至关重要,因为从 1917 年到 1965 年,我们一直使用表格数据。在本文中,我们展示了帕累托内插法(PI)的标准方法之外的另一种方法。我们证明,这种替代方法--最大熵(ME)--能提供更准确的结果,并能显著修正收入不平等的 U 曲线形状。
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引用次数: 0
Can AI Replace Human Subjects? A Large-Scale Replication of Psychological Experiments with LLMs 人工智能能否取代人类实验对象?大规模复制 LLM 心理实验
Pub Date : 2024-08-29 DOI: arxiv-2409.00128
Ziyan Cui, Ning Li, Huaikang Zhou
Artificial Intelligence (AI) is increasingly being integrated into scientificresearch, particularly in the social sciences, where understanding humanbehavior is critical. Large Language Models (LLMs) like GPT-4 have shownpromise in replicating human-like responses in various psychologicalexperiments. However, the extent to which LLMs can effectively replace humansubjects across diverse experimental contexts remains unclear. Here, we conducta large-scale study replicating 154 psychological experiments from top socialscience journals with 618 main effects and 138 interaction effects using GPT-4as a simulated participant. We find that GPT-4 successfully replicates 76.0percent of main effects and 47.0 percent of interaction effects observed in theoriginal studies, closely mirroring human responses in both direction andsignificance. However, only 19.44 percent of GPT-4's replicated confidenceintervals contain the original effect sizes, with the majority of replicatedeffect sizes exceeding the 95 percent confidence interval of the originalstudies. Additionally, there is a 71.6 percent rate of unexpected significantresults where the original studies reported null findings, suggesting potentialoverestimation or false positives. Our results demonstrate the potential ofLLMs as powerful tools in psychological research but also emphasize the needfor caution in interpreting AI-driven findings. While LLMs can complement humanstudies, they cannot yet fully replace the nuanced insights provided by humansubjects.
人工智能(AI)正越来越多地融入科学研究,尤其是社会科学研究,因为在社会科学研究中,理解人类行为至关重要。像 GPT-4 这样的大型语言模型(LLMs)已经在各种心理实验中显示出复制类似人类反应的潜力。然而,在不同的实验情境中,LLMs 能在多大程度上有效取代人类受试者仍不清楚。在这里,我们使用 GPT-4 作为模拟参与者,进行了一项大规模研究,复制了来自顶级社会科学期刊的 154 个心理学实验,其中包含 618 个主效应和 138 个交互效应。我们发现,GPT-4 成功地复制了原始研究中观察到的 76.0% 的主效应和 47.0% 的交互效应,在方向和显著性上都与人类的反应非常接近。但是,GPT-4 复制的置信区间中只有 19.44% 包含原始效应大小,大部分复制的效应大小超过了原始研究 95% 的置信区间。此外,在原始研究报告为空的情况下,意外显著结果的比例为 71.6%,这表明可能存在高估或假阳性结果。我们的研究结果表明,LLMs 有潜力成为心理学研究的有力工具,但同时也强调了在解释人工智能驱动的研究结果时需要谨慎。虽然 LLM 可以补充人类研究,但还不能完全取代人类受试者提供的细致入微的洞察力。
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引用次数: 0
Evaluating the Impact of Multiple DER Aggregators on Wholesale Energy Markets: A Hybrid Mean Field Approach 评估多个 DER 聚合器对能源批发市场的影响:混合均值场方法
Pub Date : 2024-08-27 DOI: arxiv-2409.00107
Jun He, Andrew L. Liu
The integration of distributed energy resources (DERs) into wholesale energymarkets can greatly enhance grid flexibility, improve market efficiency, andcontribute to a more sustainable energy future. As DERs -- such as solar PVpanels and energy storage -- proliferate, effective mechanisms are needed toensure that small prosumers can participate meaningfully in these markets. Westudy a wholesale market model featuring multiple DER aggregators, eachcontrolling a portfolio of DER resources and bidding into the market on behalfof the DER asset owners. The key of our approach lies in recognizing therepeated nature of market interactions the ability of participants to learn andadapt over time. Specifically, Aggregators repeatedly interact with each otherand with other suppliers in the wholesale market, collectively shapingwholesale electricity prices (aka the locational marginal prices (LMPs)). Wemodel this multi-agent interaction using a mean-field game (MFG), which usesmarket information -- reflecting the average behavior of market participants --to enable each aggregator to predict long-term LMP trends and make informeddecisions. For each aggregator, because they control the DERs within theirportfolio under certain contract structures, we employ a mean-field control(MFC) approach (as opposed to a MFG) to learn an optimal policy that maximizesthe total rewards of the DERs under their management. We also propose areinforcement learning (RL)-based method to help each agent learn optimalstrategies within the MFG framework, enhancing their ability to adapt to marketconditions and uncertainties. Numerical simulations show that LMPs quicklyreach a steady state in the hybrid mean-field approach. Furthermore, ourresults demonstrate that the combination of energy storage and mean-fieldlearning significantly reduces price volatility compared to scenarios withoutstorage.
将分布式能源资源(DER)纳入能源批发市场,可以大大提高电网的灵活性,提高市场效率,并有助于实现更可持续的能源未来。随着太阳能光伏板和储能等 DER 的激增,需要建立有效的机制来确保小型消费者能够有意义地参与这些市场。Westudy 的批发市场模式以多个 DER 聚合器为特色,每个聚合器控制一个 DER 资源组合,并代表 DER 资产所有者参与市场竞标。我们的方法的关键在于认识到市场互动的反复性以及参与者随时间学习和适应的能力。具体来说,聚合器在批发市场中与其他供应商反复互动,共同影响批发电价(又称本地边际价格 (LMP))。我们使用均场博弈(MFG)来模拟这种多代理互动,该博弈使用市场信息(反映市场参与者的平均行为),使每个聚合者都能预测 LMP 的长期趋势,并做出明智的决策。对于每个聚合器而言,由于它们根据特定的合同结构控制其投资组合中的 DER,因此我们采用均场控制(MFC)方法(而非 MFG)来学习最优策略,使其管理下的 DER 的总回报最大化。我们还提出了基于强化学习(RL)的方法,以帮助每个代理在 MFG 框架内学习最优策略,从而增强其适应市场条件和不确定性的能力。数值模拟表明,在混合均值场方法中,LMPs 很快就能达到稳定状态。此外,我们的研究结果表明,与没有储能的情况相比,储能和均值场学习的结合大大降低了价格波动。
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引用次数: 0
Time is Knowledge: What Response Times Reveal 时间就是知识:响应时间揭示了什么
Pub Date : 2024-08-27 DOI: arxiv-2408.14872
Jean-Michel Benkert, Shuo Liu, Nick Netzer
Response times contain information about economically relevant but unobservedvariables like willingness to pay, preference intensity, quality, or happiness.Here, we provide a general characterization of the properties of latentvariables that can be detected using response time data. Our characterizationgeneralizes various results in the literature, helps to solve identificationproblems of binary response models, and paves the way for many newapplications. We apply the result to test the hypothesis that marginalhappiness is decreasing in income, a principle that is commonly accepted but sofar not established empirically.
响应时间包含与经济相关但未观察到的变量信息,如支付意愿、偏好强度、质量或幸福感。在此,我们提供了利用响应时间数据可以检测到的潜在变量属性的一般描述。我们的表征概括了文献中的各种结果,有助于解决二元响应模型的识别问题,并为许多新应用铺平了道路。我们将这一结果应用于检验边际幸福感随收入递减的假设,这一原则已被普遍接受,但迄今为止尚未在实证中得到证实。
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引用次数: 0
Regional emission dynamics across phases of the EU ETS 欧盟排放交易计划各阶段的地区排放动态
Pub Date : 2024-08-27 DOI: arxiv-2408.15438
Marco Dueñas, Antoine Mandel
This paper explores the relationship between economic growth and CO$_2$emissions across European regions from 1990 to 2022, specifically concerningthe dynamics of emissions growth rates through different phases of the EuropeanUnion Emissions Trading System (EU ETS). We find that emissions dynamicsexhibit significant volatility influenced by changing policy frameworks.Furthermore, the distribution of emissions growth rates is asymmetric anddisplays fat tails, suggesting the potential for extreme emissions events. Weidentify marked disparities across regions: less developed regions experiencehigher emissions growth rates and greater volatility compared to many developedareas, which show a trend of declining emissions and reduced volatility. Ourfindings highlight the sensitivity of emissions to policy changes and emphasisethe need for clear and effective governance in emissions trading schemes.
本文探讨了 1990 年至 2022 年欧洲各地区经济增长与二氧化碳排放量之间的关系,特别是欧盟排放交易体系(EU ETS)不同阶段的排放增长率动态。我们发现,受政策框架变化的影响,排放动态呈现出显著的波动性。此外,排放增长率的分布是不对称的,并呈现出肥尾,这表明可能会出现极端排放事件。我们发现各地区之间存在明显差异:与许多发达地区相比,欠发达地区的排放增长率更高,波动性更大,而发达地区则呈现出排放下降和波动性降低的趋势。我们的研究结果突显了排放对政策变化的敏感性,并强调了在排放贸易计划中进行明确有效治理的必要性。
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引用次数: 0
The Climate Cost of Climate Investment: A Two-Period Perspective 气候投资的气候成本:两期视角
Pub Date : 2024-08-26 DOI: arxiv-2408.14359
Shaunak Kulkarni, Rohan Ajay Dubey
A one-size-fits-all paradigm that only adapts the scale and immediate outcomeof climate investment to economic circumstances will provide a short-lived,economically inadequate response to climate issues; given the limited resourcesallocated to green finance, it stands to reason that the shortcomings of thiswill be exacerbated by the fact that it comes at the cost of long-term,self-perpetuating, systemic solutions. Financial commitments that do notconsider the capital structure of green finance in an economy will cumulativelydis-aggregate the economic cost of climate investment, to erode the competitiveadvantage of the most innovative economies, while simultaneously imposing thegreatest financial burden on economies that are most vulnerable to the impactof climate change; such disaggregation will also leave 'middle' economies in astate of flux - honouring similar financial commitments to vulnerable or highlydeveloped peers, but unable to generate comparable return, yet sufficientlyinsulated from the impact of extreme climate phenomena to not organicallydevelop solutions. In the face of these changing realities, green innovation needs to expandbeyond technology and address systemic inefficiencies - lack of clearresponsibility, ambiguously defined commitments, and inadequate checks &balances to name a few. Clever application of financial engineering demonstrates promise, and simplemeasures like carbon-credit exchanges have been effective in mitigatingimperfections at the grassroots level. We believe that information- andincentive-centric systemic advancements can usher a fresh wave of greeninnovation that stands on the shoulders of giants to ensure effectiveimplementation of technological breakthroughs; economic development that willcreate an international community equipped with a robust framework to deal withlong-term crises in a strategic manner.
一刀切 "的模式只根据经济情况调整气候投资的规模和直接结果,将对气候问题做出短期的、经济上不充分的回应;鉴于分配给绿色金融的资源有限,这种模式的缺点将因以长期的、自我延续的、系统性的解决方案为代价而加剧。不考虑经济体中绿色金融资本结构的金融承诺将累积分解气候投资的经济成本,削弱最具创新性经济体的竞争优势,同时给最易受气候变化影响的经济体带来最大的财政负担;这种分解也将使 "中等 "经济体处于不稳定状态--履行与脆弱或高度发达的同行类似的财政承诺,但却无法产生可比的回报,同时又与极端气候现象的影响隔绝,无法有机地开发解决方案。面对这些不断变化的现实,绿色创新需要超越技术,解决系统性的低效问题--责任不明确、承诺定义不清晰、制衡机制不健全等等。金融工程的巧妙应用展示了前景,碳信用额度交易所等简单措施也有效地缓解了基层的不完善。我们相信,以信息和激励为中心的系统性进步能够掀起新一轮的绿色创新浪潮,站在巨人的肩膀上,确保技术突破的有效实施;经济发展将创造一个具备强有力框架的国际社会,以战略方式应对长期危机。
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引用次数: 0
Insuring Long-Term Care in Developing Countries: The Interaction between Formal and Informal Insurance 发展中国家的长期护理保险:正规与非正规保险之间的相互作用
Pub Date : 2024-08-26 DOI: arxiv-2408.14243
Jiayi Wen, Xiaoqing Yu
Does public insurance reduce uninsured long-term care (LTC) risks indeveloping countries, where informal insurance predominates? This paperexploits the rollout of LTC insurance in China around 2016 to examine theimpact of public LTC insurance on healthy workers' labor supply, a criticalself-insurance channel. We find that workers eligible for public LTC insurancewere less likely to engage in labor work and worked fewer weeks annuallyfollowing the policy change, suggesting a mitigation of uninsured risks.However, these impacts were insignificant among those with strong informalinsurance coverage. Parallel changes in anticipated formal care use corroboratethese findings. While our results reveal that public LTC insurance provideslimited additional risk-sharing when informal insurance predominates, they alsounderscore its growing importance.
在非正规保险占主导地位的发展中国家,公共保险能否降低未投保的长期护理(LTC)风险?本论文利用中国在 2016 年前后推出的长期护理保险,研究了公共长期护理保险对健康工人劳动供给的影响,这是一个重要的自我保险渠道。我们发现,政策变化后,符合公共长护险参保条件的劳动者从事劳动工作的可能性降低,每年工作的周数减少,这表明未参保风险得到缓解。预期正规护理使用的平行变化证实了这些发现。我们的研究结果表明,当非正规保险占主导地位时,公共长期护理保险只能提供有限的额外风险分担,但同时也证明了其日益增长的重要性。
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引用次数: 0
期刊
arXiv - ECON - General Economics
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