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The Malayan economic review : the journal of the Economic Society of Singapore, the Department of Economics and Statistics and the Economic Research Centre of the University of Singapore最新文献

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Beyond standard economic approaches: complex networks in climate finance 超越标准经济方法:气候融资中的复杂网络
F. Larosa, Nadia Ameli, Jamie Rickman, Sumit Kothari
The financial system is a key tool to enable the shift towards a climate-smart economy: by reallocating capital to low-carbon assets, it internalizes the climate externality. However, the financial sector operates as an ecosystem of evolving agents continuously shaping the outcomes they jointly generate. Hence, the consequences of global warming and the climate impacts are potentially amplified by the micro and meso dynamics of agents interacting with each other and with technologies and institutions in the space they operate. In this working paper, we present a concise but exhaustive review about complex networks models and methods applied to climate finance. We show where networks can overcome the limitations of standard economic models in both macroprudential regulation and capital allocation. We present the main challenges ahead and we discuss the importance of a renewed research-policy dialogue to advance the discipline.
金融体系是实现向气候智能型经济转变的关键工具:通过将资本重新配置到低碳资产,它将气候外部性内部化。然而,金融部门是一个由不断进化的主体组成的生态系统,不断塑造它们共同产生的结果。因此,全球变暖和气候影响的后果可能会被各种因素相互作用的微观和中观动力学以及它们所操作的空间中的技术和制度所放大。在这篇工作论文中,我们对应用于气候融资的复杂网络模型和方法进行了简明而详尽的回顾。我们展示了网络在宏观审慎监管和资本配置方面可以克服标准经济模型的局限性。我们提出了未来的主要挑战,并讨论了新的研究政策对话对推进该学科的重要性。
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引用次数: 2
The COVID Crumbling of Tourism in Andalusia: An Assessment of Economic and Environmental Consequences 安达卢西亚旅游业的COVID崩溃:经济和环境后果评估
R. Roson, Camille van der Vorst
This paper presents a simulation exercise undertaken with a newly available regional general equilibrium model for the Spanish region of Andalusia. The exercise is intended to assess the structural adjustment processes and impacts on the Andalusian economy directly induced by the dramatic fall in tourism expenditure which occurred in the year 2020, due to the prevention measures implemented because of the COVID-19 pandemic. We also undertake a preliminary evaluation of the impact on some environmental indicators, such as greenhouse gases emissions and air pollutants. The key insight emerging from our analysis is that the COVID crumbling of tourism demand generates very relevant distributional consequences.
本文介绍了西班牙安达卢西亚地区用一种新可用的区域一般均衡模型进行的模拟练习。这项工作旨在评估因2019冠状病毒病大流行而实施的预防措施导致2020年旅游支出大幅下降,从而直接导致的结构调整进程和对安达卢西亚经济的影响。我们亦会初步评估对一些环境指标的影响,例如温室气体排放及空气污染物。从我们的分析中得出的关键见解是,COVID对旅游需求的破坏产生了非常相关的分配后果。
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引用次数: 1
Tourism and economic growth: an application to coastal regions in the Mediterranean area 旅游与经济增长:在地中海沿岸地区的应用
Nicola Camatti, L. Salmasi, Jan van der Borg
This paper describes regional touristic supply under the framework of territorial capital to understand which territorial assets are the most important for stimulating economic growth. We used spatial regression models to consider spatial dependencies among regions, and Bayesian Model Averaging to specify our models using only the most relevant territorial assets. We have focused on the Mediterranean coast. The results show that many of the variables considered in our models play an important role in predicting GDP, recognizing them as strategic in economic growth, as well as a variety of strictly tourist assets, such as cultural heritage and landscape.
本文在地域资本的框架下对区域旅游供给进行了描述,以了解哪些地域资产对刺激经济增长最为重要。我们使用空间回归模型来考虑区域之间的空间依赖性,并使用贝叶斯平均模型来指定我们的模型,仅使用最相关的领土资产。我们关注的是地中海沿岸。结果表明,我们的模型中考虑的许多变量在预测GDP方面发挥着重要作用,将它们视为经济增长的战略,以及各种严格意义上的旅游资产,如文化遗产和景观。
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引用次数: 0
Care Provision at the Time of the Covid-19: Who Suffers Most? Covid-19时期的护理服务:谁受害最大?
E. Bassoli, A. Brugiavini, Irene Ferrari
This paper focuses on the changes in care provision at the time of the COVID-19 outbreak by exploiting variation in lockdown policies across Europe. We use the SHARE-COVID-19 survey, which involves about 50000 respondents of age 50 and over in 26 countries, to investigate how the stringency of the policy measures have affected care provision. Our study is based on the linkage of the SHARE-COVID-19 data with an individual specific “stringency index” which measures the intensity of the restriction policies and the degree of individual’s exposure. We find that older individuals, low-income individuals and people affected by limitations in everyday life faced a higher probability of receiving help because of the lockdown policies. Women and people in the age group 50-65 were more likely to provide help/care, but we also uncover a complex interaction with the labour market condition of caregivers. Lockdown policies hit hard individuals who were already receiving care as they experienced a form of rationing, both due to higher financial costs and travelling restrictions. Since these individuals are already among the most fragile.
本文通过利用欧洲各国封锁政策的变化,重点关注COVID-19疫情期间护理服务的变化。SHARE-COVID-19调查涉及26个国家约5万名50岁及以上的受访者,我们使用该调查来调查政策措施的严格程度如何影响护理提供。我们的研究基于SHARE-COVID-19数据与个人特定“严格程度指数”的联系,该指数衡量限制政策的强度和个人暴露程度。我们发现,由于封锁政策,老年人、低收入人群和日常生活受到限制的人群获得帮助的可能性更高。女性和年龄在50-65岁之间的人更有可能提供帮助/照顾,但我们也发现了与照顾者的劳动力市场状况的复杂相互作用。由于更高的财务成本和旅行限制,封锁政策对已经接受治疗的个人造成了沉重打击,因为他们经历了某种形式的配给。因为这些人已经是最脆弱的了。
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引用次数: 3
Relatedness, Economic Complexity, and Convergence Across European Regions 欧洲地区的关联性、经济复杂性和趋同
T. Buccellato, Giancarlo Corò
The aim of this paper is to analyze how the heterogeneous structure of the European regions has affected their patterns of convergence or divergence. We analyse data collected by Eurostat, from a balanced panel of 191 regions and 55 economic branches over the period 2003–2015. In this way, we are able to describe and capture technological proximity across the regions and analyse how it has evolved over space and time. Limiting the analysis to the manufacturing activities, we are also able to measure the degree of economic complexity of the regional production systems and assess how this affects their patterns of growth.
本文的目的是分析欧洲地区的异质结构如何影响它们的趋同或分化模式。我们分析了欧盟统计局收集的数据,这些数据来自2003-2015年期间191个地区和55个经济部门的平衡面板。通过这种方式,我们能够描述和捕捉各个地区的技术接近性,并分析它是如何随时间和空间演变的。将分析局限于制造业活动,我们也能够衡量区域生产系统的经济复杂性程度,并评估这如何影响其增长模式。
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引用次数: 6
Risk Aversion: Differential Conditions for the Iso-Utility Curves with Positive Slope in Transformed Two Parameter Distributions 风险规避:变换后的两参数分布中斜率为正的等效用曲线的微分条件
Fausto Corradin, D. Sartore
The condition of Risk Aversion implies that the Utility Function must be concave. We take into account the dependence of the Utility Function on the return that has any type of two-parameter distribution; it is possible to define Risk and Target, the former may be the Standard Deviation of the return, and the latter is usually the Expected value of the return, as a generic function of these two parameters. Considering the 3D space of Risk, Target and Expected Utility, this paper determines the Differential Conditions for these three functions so that the Expected Utility Function depends decreasingly on Risk and increasingly on Target, that means the iso-utility curves have positive slope in the plane of Risk and Target. As a specific case, we discuss these conditions in the case of the CRRA Utility Function and the Truncated Normal distribution. Furthermore, different measures of Risk are chosen, such as Value at Risk (VaR) and Expected Shortfall (ES), to verify if these measures maintain a positive slope of the iso-utility curves in the Risk-Target plane.
风险厌恶的条件意味着效用函数必须是凹的。我们考虑到效用函数对具有任何类型的双参数分布的收益的依赖;可以定义风险和目标,前者可以是收益的标准差,后者通常是收益的期望值,是这两个参数的一般函数。考虑到风险、目标和期望效用的三维空间,本文确定了这三个函数的微分条件,使得期望效用函数对风险的依赖越来越小,对目标的依赖越来越大,即等效用曲线在风险和目标平面上斜率为正。作为一个具体的例子,我们在CRRA效用函数和截尾正态分布的情况下讨论这些条件。此外,选择不同的风险度量,如风险值(VaR)和预期缺口(ES),以验证这些度量是否在风险-目标平面上保持等效用曲线的正斜率。
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引用次数: 0
Conglomerate Mergers and Entry in Innovative Industries 创新产业中的企业集团兼并与进入
Federico Etro
I study a merger between producers of complement inputs facing entry of superior inputs, with investment by the incumbents in deterministic cost reduction and by the entrants in probabilistic innovation, and competition in prices. The merger is profitable by solving Cournot complementarity problems in investment and pricing, and has positive (negative) effects on R&D by the incumbents (entrants). With inelastic demand the merger harms consumers if the incumbents are efficient enough even without bundling, and always when a commitment to bundling is adopted. Instead, with a demand elastic enough, the merger increases consumer surplus even when a commitment to pure bundling is feasible.
我研究了面对优质投入进入的互补投入生产者之间的合并,既有企业投资于确定性成本降低,又有新企业投资于概率创新,以及价格竞争。并购通过解决投资和定价上的古诺互补问题而获利,并对既有企业(进入者)的研发产生正(负)效应。在无弹性需求的情况下,如果现有企业即使没有捆绑也足够高效,那么合并就会损害消费者的利益,而且总是在采用捆绑承诺的情况下。相反,在需求足够弹性的情况下,即使对纯捆绑的承诺是可行的,合并也会增加消费者剩余。
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引用次数: 2
G-RDEM: A GTAP-Based Recursive Dynamic CGE Model for Long-Term Baseline Generation and Analysis G-RDEM:基于gtap的长期基线生成和分析递归动态CGE模型
W. Britz, R. Roson
We motivate and detail the new GTAP-based recursive dynamic economic model (G-RDEM), a computable general equilibrium tool for long-term counterfactual analysis and baseline generation from given gross domestic product (GDP) and population projections. It encompasses an implicitly directly additive demand system (AIDADS) demand system with non-linear Engel curves, debt accumulation from foreign saving and introduces sector specific productivity changes, endogenous aggregate saving rates, as well as time-varying cost shares for value added and individual intermediates. Parameters for these relationships are econometrically estimated or taken from published work. The core of the model is derived from the Global Trade Anaylsis Project (GTAP) standard model and seamlessly incorporated into the modular and flexible CGEBox modelling platform, allowing for combined applications with various other extensions, such as GTAP-agro-ecological zones (AEZ) or GTAP-Water. G-RDEM maintains the flexible aggregation from the GTAP Data Base. It is open source, encoded in General Algebraic Modelling System (GAMS) and can be steered by a Graphical User Interface, which also encompasses a tool to analyse results with tables, graphs and maps. Existing GDP and population projections from the Socio-Economic Pathways (SSP) 1-5 can be directly incorporated for baseline construction. A comparison of the generated long-term structural composition of the economy against a simple recursive-dynamic variant, derived from the standard GTAP model, shows that G-RDEM brings about much more plausible results, as well as a more realistic, internally consistent representation of the economic structure in a hypothetical future.
我们激励并详细介绍了新的基于gtap的递归动态经济模型(G-RDEM),这是一个可计算的一般均衡工具,用于长期反事实分析和根据给定的国内生产总值(GDP)和人口预测生成基线。它包括一个隐含的直接加性需求系统(AIDADS),具有非线性恩格尔曲线的需求系统,外国储蓄的债务积累,并引入特定部门的生产率变化,内生总储蓄率,以及增加价值和个人中间产品的时变成本份额。这些关系的参数是计量经济学估计或从已发表的工作中提取的。该模型的核心源自全球贸易分析项目(GTAP)标准模型,并无缝集成到模块化和灵活的CGEBox建模平台中,允许与各种其他扩展相结合的应用,例如GTAP-农业生态区(AEZ)或GTAP-水。G-RDEM维护来自GTAP数据库的灵活聚合。它是开源的,用通用代数建模系统(GAMS)编码,可以通过图形用户界面进行操作,该界面还包含一个用表格、图形和地图分析结果的工具。现有的GDP和人口预测来自社会经济路径(SSP) 1-5,可以直接纳入基线建设。将生成的经济长期结构组成与源自标准GTAP模型的简单递归动态变量进行比较,表明G-RDEM带来了更可信的结果,以及对假设未来经济结构的更现实、内部一致的表示。
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引用次数: 20
Expectations and Uncertainty: A Common-Source Infection Model for Selected European Countries 预期和不确定性:一个共同来源的感染模型选定的欧洲国家
Luca Gerotto, A. Paradiso
We present a common-source infection model for explaining the formation of expectations by households. Starting from the framework of "Macroeconomic expectations of household and professional forecasters" (C.D. Carroll, The Quarterly Journal of Economics, 2003), we augment the original model assuming that also uninformed individuals are able to update expectations according to a naive econometric process. In this novel framework, a key role is played by the parameter measuring the probability of being informed: the dynamics of this factor over time capture the level of uncertainty perceived by households. This new framework is applied to study unemployment expectations for a selected group of European countries (France, Germany, Italy and the UK). Our results show that: (i) the novel framework is supported by data on unemployment expectations; and (ii) the probability of being informed is (negatively) correlated with the level of uncertainty spread by newspapers and conveyed by Internet.
我们提出了一个共同源感染模型来解释家庭期望的形成。从“家庭和专业预测者的宏观经济预期”(C.D. Carroll, the Quarterly Journal of Economics, 2003)的框架出发,我们扩大了原始模型,假设不知情的个人也能够根据幼稚的计量经济学过程更新预期。在这个新颖的框架中,衡量被告知概率的参数发挥了关键作用:该因素随时间的动态变化反映了家庭所感知的不确定性水平。这个新框架被用于研究选定的一组欧洲国家(法国、德国、意大利和英国)的失业预期。研究结果表明:(1)新框架得到了失业预期数据的支持;(ii)被告知的概率与报纸传播和互联网传达的不确定性水平呈(负)相关。
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引用次数: 0
Dynamical Interaction between Financial and Business Cycles 金融周期与商业周期的动态交互作用
Monica Billio, Anna V. Petronevich
We adopt the Dynamical Influence model from computer science and transform it to study the interaction between business and financial cycles. For this purpose, we merge it with Markov-Switching Dynamic Factor Model (MS-DFM) which is frequently used in economic cycle analysis. The model suggested in this paper, the Dynamical Influence Markov-Switching Dynamic Factor Model (DI-MS-FM), allows to reveal the pattern of interaction between business and financial cycles in addition to their individual characteristics. More specifically, this model allows to describe quantitatively the existing regimes of interaction in a given economy and to identify their timing, as well as to evaluate the effect of the government policy on the duration of each of the regimes. We are also able to determine the direction of causality between the two cycles for each of the regimes. The model estimated on the US data demonstrates reasonable results, identifying the periods of higher interaction between the cycles in the beginning of 1980s and during the Great Recession, while in-between the cycles evolve almost independently. The output of the model can be useful for policymakers since it provides a timely estimate of the current interaction regime, which allows to adjust the timing and the composition of the policy mix.
我们采用计算机科学中的动态影响模型,并将其转化为研究商业周期与金融周期之间的相互作用。为此,我们将其与经济周期分析中常用的马尔可夫切换动态因子模型(MS-DFM)合并。本文提出的模型,即动态影响马尔可夫切换动态因子模型(DI-MS-FM),除了揭示商业周期和金融周期的个体特征外,还揭示了它们之间相互作用的模式。更具体地说,该模型允许定量描述给定经济体中现有的相互作用制度,并确定其时间,以及评估政府政策对每种制度持续时间的影响。我们还能够确定每个体制的两个循环之间的因果关系的方向。根据美国数据估算的模型显示了合理的结果,确定了20世纪80年代初和大衰退期间周期之间相互作用较高的时期,而在此期间,周期几乎独立发展。该模型的输出对政策制定者很有用,因为它提供了对当前相互作用机制的及时估计,从而可以调整政策组合的时间和组成。
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引用次数: 3
期刊
The Malayan economic review : the journal of the Economic Society of Singapore, the Department of Economics and Statistics and the Economic Research Centre of the University of Singapore
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