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Spectrum Flexibility and Mobile Development 频谱灵活性和移动开发
Pub Date : 2021-10-01 DOI: 10.2139/ssrn.3941383
Juan Jung, Raul L. Katz
In this paper we study the effects on mobile market outcomes from three specific attributes linked to a flexible spectrum policy: the presence of a secondary market for spectrum trading, a technological neutrality approach, and the possibility of conducting sharing agreements among operators. In terms of market outcomes, we identify four possible variables: capital investment, network coverage, service pricing, and adoption. After designing a precise causal approach linking the above-mentioned variables, we were able to identify a significant impact on the four independent variables from the spectrum policies. When those three policies are jointly adopted, mobile capital investment is 35.9% larger than when that is not the case. In addition, promoting these policies can increase network coverage by 9.8% after two years, bring down mobile broadband prices by -5.8%, and increase mobile broadband unique subscribers’ penetration by 0.9%. When we consider a wider period of 5-years, dynamic effects take over, resulting in mobile broadband prices being reduced in -14.3% and mobile broadband unique subscribers’ penetration potentially increasing in 2.4%. These results were verified to be robust after the addition of control variables and when controlling for potential endogeneities associated to these causal frameworks. In sum, we believe, based on this evidence, that a flexible approach towards spectrum management that allows for secondary trading, technological neutrality and network sharing can contribute significantly to the development of the mobile sector, thereby maximizing socioeconomic welfare.
在本文中,我们研究了与灵活频谱政策相关的三个具体属性对移动市场结果的影响:频谱交易二级市场的存在、技术中立方法以及运营商之间进行共享协议的可能性。就市场结果而言,我们确定了四个可能的变量:资本投资、网络覆盖、服务定价和采用。在设计了连接上述变量的精确因果方法后,我们能够从频谱政策中确定对四个自变量的重大影响。当这三项政策同时实施时,流动资本投资比不同时实施时增加35.9%。此外,这些政策的推行可以在两年后使网络覆盖率提高9.8%,使移动宽带价格降低-5.8%,使移动宽带唯一用户普及率提高0.9%。当我们考虑更广泛的5年时期时,动态效应开始起作用,导致移动宽带价格下降-14.3%,移动宽带唯一用户普及率可能增加2.4%。在加入控制变量和控制与这些因果框架相关的潜在内源性后,这些结果被证实是稳健的。总之,基于这些证据,我们认为,允许二次交易、技术中立性和网络共享的灵活频谱管理方法可以为移动行业的发展做出重大贡献,从而最大限度地提高社会经济福利。
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引用次数: 0
A Systematic Review of Experimental Approaches on Public Service Motivation 公共服务动机实验方法的系统回顾
Pub Date : 2021-08-31 DOI: 10.2139/ssrn.3914603
K. Chung, Inbok Rhee, Cheol Liu
Recent studies on public service motivation (PSM) have increasingly adopted experimental approaches. This article provides a systematic review of the existing experimental studies on PSM and suggests guidance for future research. We assess the existing literature based on two criteria that differentiate experimental methods from observational ones: whether PSM is measured through an experiment and whether the research design operates treatment intervention for PSM. After reviewing a sample of 26 published studies, we find that only one study met both criteria. Most studies measure PSM through a self-reported survey and lack treatment effects, making it difficult to differentiate them from observational studies. Furthermore, external validity remains a concern, as most studies use students as proxies for civil servants or focus only on Western states. We conclude that experimental studies on PSM remain at a nascent stage with much room for improvement, especially the experimental design.
近年来对公共服务动机的研究越来越多地采用实验方法。本文对现有的PSM实验研究进行了系统的综述,并对今后的研究提出了建议。我们基于区分实验方法和观察方法的两个标准来评估现有文献:PSM是否通过实验测量,以及研究设计是否对PSM进行治疗干预。在回顾了26项已发表的研究样本后,我们发现只有一项研究同时满足了这两个标准。大多数研究通过自我报告的调查来测量PSM,缺乏治疗效果,因此很难将它们与观察性研究区分开来。此外,外部有效性仍然是一个问题,因为大多数研究使用学生作为公务员的代理,或者只关注西方国家。我们认为,PSM的实验研究仍处于起步阶段,特别是实验设计仍有很大的改进空间。
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引用次数: 1
The Development of Central Bank Digital Currency in China: An Analysis 中央银行数字货币在中国的发展分析
Pub Date : 2021-08-12 DOI: 10.2139/ssrn.3906358
Geoffrey Goodell, H. D. Al-Nakib
The People's Bank of China (PBOC) has launched an ambitious project to develop a digital currency for use in domestic, retail transactions, and is, by far, the most advanced globally in this regard. In addition to involving a diverse set of stakeholders, the PBOC established a set of fundamental principles, including privacy, inclusiveness, and conservatism, and has articulated its progress in a public document translated into English. We maintain that although both its first principles and its conclusions drawn from the research conducted by the PBOC from 2014 to date are broadly reasonable and appropriate, the PBOC has also missed some important considerations and entertained some questionable assumptions, which many central banks around the world have also done. In this analysis, we consider the strengths and weaknesses of the digital currency proposition articulated by the PBOC as it exists today, and we propose one fundamental and specific change for the PBOC and other central banks around the world: The architecture must accommodate privacy-preserving, non-custodial wallets. With this change and a related set of minor adjustments, China has an opportunity to lead the world in the implementation of a central bank digital currency (CBDC) solution that protects the authority of the central bank to implement monetary policy, preserves the role of public-sector and private-sector banking institutions, promotes the efficiency of retail transactions and businesses, satisfies regulatory objectives, and safeguards the human rights of retail consumers, including their privacy and their right to participate in the economy. We hope that the PBOC, and other central banks around the world, will have the resolve and strength of purpose to implement our proposed change and carry on with implementing a CBDC architecture that serves the interests of its users.
中国人民银行(PBOC)启动了一项雄心勃勃的项目,开发用于国内零售交易的数字货币,这是迄今为止全球在这方面最先进的项目。除了让不同的利益相关者参与进来之外,中国人民银行还制定了一套基本原则,包括隐私、包容性和保守性,并在一份翻译成英文的公开文件中阐明了其进展。我们认为,尽管中国人民银行从2014年至今所做的研究得出的第一原则和结论大体上是合理和适当的,但中国人民银行也遗漏了一些重要的考虑因素,并接受了一些有问题的假设,世界各地的许多央行也这样做了。在本分析中,我们考虑了中国人民银行所阐述的数字货币主张的优缺点,并为中国人民银行和世界各地的其他中央银行提出了一个基本和具体的变化:该架构必须适应隐私保护,非托管钱包。通过这一变化和一系列相关的微调,中国有机会在实施央行数字货币(CBDC)解决方案方面引领世界,保护央行实施货币政策的权威,保留公共部门和私营部门银行机构的作用,促进零售交易和业务的效率,满足监管目标,并保障零售消费者的人权。包括他们的隐私和参与经济的权利。我们希望中国人民银行和世界各地的其他中央银行有决心和决心实施我们提出的变革,并继续实施符合其用户利益的CBDC架构。
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引用次数: 6
The Legacy of State Repression on Contemporary Trust: Indiscriminate versus Targeted Repression in Soviet Russia 当代信任下国家镇压的遗产:苏俄不分青红皂白的镇压与有针对性的镇压
Pub Date : 2021-07-31 DOI: 10.2139/ssrn.3914609
Nemanja Cocic, Chrysostomos Tabakis, Andrey Ten
Indiscriminate state repression leaves long-term negative consequences on interpersonal trust and trust in state institutions. In this paper, we investigate whether a variation in density of Soviet police forces, which governed the level of selectivity in repression execution, lead to heterogeneity in long-term trust response to repression. Similar to other studies, we find that both horizontal trust and vertical trust are negatively associated with indiscriminate repression exposure in the past. However, our results suggest that the magnitude of the negative effect diminishes with repression executed in a more selective fashion proxied by the intensity of the perpetrator’s deployment. Surprisingly, we find that trust response might even inverse to positive in localities where the state repression had been accompanied by a perpetrator’s presence at extremely high levels, i.e., when the state could ensure highly selective repression. Overall, our findings propose that the legacy of totalitarian regimes on horizontal and vertical trust might depend on the state’s capacity to execute repression with more or less precision against perceived enemies.
不分青红皂白的国家镇压会对人际信任和对国家机构的信任产生长期的负面影响。在本文中,我们研究了苏联警察部队密度的变化是否会导致对镇压的长期信任反应的异质性,这决定了镇压执行的选择性水平。与其他研究类似,我们发现横向信任和纵向信任都与过去的无差别压抑暴露呈负相关。然而,我们的研究结果表明,负面影响的程度随着以更有选择性的方式执行的镇压而减少,这种方式由犯罪者的部署强度所代表。令人惊讶的是,我们发现信任反应甚至可能在国家镇压伴随着犯罪者极高水平的存在的地方逆转为积极的,即当国家可以确保高度选择性的镇压时。总体而言,我们的研究结果表明,极权主义政权在横向和纵向信任方面的遗产可能取决于国家对其感知的敌人或多或少精确地执行镇压的能力。
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引用次数: 0
Perception of the Risk of the COVID-19 Pandemic by Population : The Case of Gabon 民众对COVID-19大流行风险的认知:以加蓬为例
Pub Date : 2021-07-27 DOI: 10.2139/ssrn.3894658
Assoumou Ondo
This article analyzes the risk perception of COVID-19 in Gabon, in general, and in the capital Libreville, in particular. Unlike work focused on the impact of COVID-19 on public finances, the education system, the digital system and the banking sector, etc., we are interested in its perception by the population. Thus, we were inspired by the work of Dryef et al. (2020) and we carried out a survey, via Google Forms, over a period from October 25, 2020 to December 26, 2020. A questionnaire was distributed via Whatsapp and was answered by one hundred and twelve (112) people. It appears that for the population of the Gabonese capital, the conversation of being infected with COVID-19 is weak and that of dying from it is even more so. In addition, residents find that the damage from contamination by COVID-19 is not serious, despite the non-compliance with barrier measures and the lack of special care in hospitals across the country. This perception of the risk by COVID-19 induces unwise behavior on the part of the Gabonese who do not find it useful to enforce the anti-COVID-19 measures imposed by the government on a young population, in a sunny country.
本文从总体上分析了加蓬,特别是首都利伯维尔对COVID-19的风险认知。与侧重于COVID-19对公共财政、教育系统、数字系统和银行业等的影响的工作不同,我们感兴趣的是民众对其的看法。因此,我们受到了dryyef et al.(2020)工作的启发,我们通过谷歌表格进行了一项调查,调查时间为2020年10月25日至2020年12月26日。通过Whatsapp分发了一份问卷,有112人回答了问卷。对于加蓬首都的人口来说,关于感染COVID-19的对话似乎很弱,而死于COVID-19的对话更是如此。此外,居民发现,尽管全国各地的医院不遵守隔离措施,缺乏特殊护理,但COVID-19污染造成的损害并不严重。这种对COVID-19风险的认知导致加蓬人做出不明智的行为,他们认为在一个阳光明媚的国家,政府对年轻人实施的抗COVID-19措施没有任何用处。
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引用次数: 0
Voluntary Disclosure and Adverse Selection: Bayesian Game-Theoretical Inferences for Green Bond Labelling Regimes 自愿披露和逆向选择:绿色债券标签制度的贝叶斯博弈论推论
Pub Date : 2021-07-17 DOI: 10.2139/ssrn.3889797
Karim Henide
The impact finance market has sought to 'internalise externalities and adjust risk perceptions' (G20 Green Finance Study Group, 2016), demonstrating the private sector's capability in resolving the climate free-rider problem through the 'greening' of economic activities, partially bypassing corrective government intervention. As the market continues to develop, however, the voluntary disclosure regime that the market operates under threatens to enforce an adverse selection problem and contribute to a fundamental erosion of confidence in the market segment, constraining the potential of impact finance instruments to affect positive social and environmental change. I relate the work of Crawford and Sobel (1982); Milgrom (1981); Verrecchia (1983); Jung and Kwon (1988); Myers and Majluf (1984); Frantz (1997); Frantz and Instefjord (2006) to the green bond market and draw inferences to inform recommendations for policy-led solutions.
影响金融市场寻求“内部化外部性和调整风险认知”(G20绿色金融研究小组,2016),展示了私营部门通过经济活动的“绿色化”解决气候搭便车问题的能力,部分绕过了纠正性的政府干预。然而,随着市场的继续发展,市场运作所依据的自愿披露制度有可能造成逆向选择问题,并从根本上侵蚀市场部门的信心,限制影响金融工具影响积极的社会和环境变化的潜力。我介绍了Crawford和Sobel(1982)的工作;米格罗姆(1981);Verrecchia (1983);郑和权(1988);Myers和Majluf (1984);弗朗茨(1997);Frantz和Instefjord(2006)对绿色债券市场进行了研究,并得出推论,为政策导向的解决方案提供建议。
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引用次数: 2
The Fight Against Malaria: A New Index for Quantifying and Assessing Policy Implementation Actions to Reduce Mortality in Sub-Saharan Africa 抗击疟疾:量化和评估撒哈拉以南非洲降低死亡率政策执行行动的新指数
Pub Date : 2021-07-01 DOI: 10.2139/ssrn.3878306
C. Bethencourt, G. A. Marrero, Charlie Yves Ngoudji
More than 90% of people suffering from Malaria live in Sub-Saharan Africa (SSA). We construct, for the first time, a Malaria Policy Index (MaPI) for 44 SSA countries to quantify and compare each country’s antimalarial policy actions between 1990 and 2017. The MaPI compiles information on intervention strategies such as prevention, diagnosis and treatment (Pillar 1) and the use of antimalarial therapies and tests (Pillar 2). We find that: antimalarial policy implementation is a widespread phenomenon in the region from the mid-2000s on; initial differences in per capita GDP, quality of institutions and malaria burden are not associated with the current levels of policy implementation and; there exists a first stage of policy divergence (before mid-2000s), followed by a strong convergence period. The convergence period is associated with an unprecedented increase in international malaria fight funding, which was unevenly distributed across countries according to their necessities to eradicate the disease. Using a difference-in-difference events study design and a distributed lag model approach, we estimate the effect of antimalarial policy implementation increases on subsequent changes in malaria mortality within SSA countries. We find that policies included in Pillar 1 are key to reduce within-country malaria mortality: an increase of 10 p.p. in policies implemented in this pillar generates a cumulative malaria mortality decrease of about 6 p.p. after five years.
90%以上的疟疾患者生活在撒哈拉以南非洲(SSA)。我们首次为44个SSA国家构建了疟疾政策指数(MaPI),以量化和比较1990年至2017年每个国家的抗疟疾政策行动。MaPI汇编了有关预防、诊断和治疗(支柱1)以及抗疟疾疗法和检测(支柱2)等干预战略的信息。我们发现:自2000年代中期以来,抗疟疾政策的实施在该地区是一种普遍现象;人均国内总产值、机构质量和疟疾负担方面的初步差异与目前的政策执行水平无关;存在第一阶段的政策分化(2000年代中期之前),随后是一个强劲的趋同期。这一趋同期与国际防治疟疾资金空前增加有关,但这些资金在各国之间的分配不均衡,取决于各国根除这一疾病的必要性。使用差异事件的差异研究设计和分布式滞后模型方法,我们估计了抗疟疾政策实施增加对SSA国家后续疟疾死亡率变化的影响。我们发现,第一支柱所包含的政策是降低国内疟疾死亡率的关键:在这一支柱中实施的政策每增加10个百分点,五年后疟疾死亡率就会累计下降约6个百分点。
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引用次数: 0
Competition Law and Digital Ecosystems: Learning To Walk Before We Run 竞争法与数字生态系统:先学走,再学跑
Pub Date : 2021-04-04 DOI: 10.2139/ssrn.3776274
F. Jenny
The paper analyzes the challenges faced by competition authorities with respect to the digital sector. Borrowing insights from the business policy literature and from the economic literature, the paper first analyzes the specificities of digital firms (multi-sided platforms and ecosystems) with respect to their development and competitive strategies. Building on this foundation the paper explores some of the challenges of applying traditional competition analysis to competition in the business sector. We then discuss a number of issues relevant to competition law enforcement in the digital sector starting with the role of data, competition within ecosystems and between ecosystems, consumer biases, and the role of gatekeepers. We conclude with a research agenda for economists and competition authorities.
本文分析了竞争主管部门在数字领域面临的挑战。本文借鉴商业政策文献和经济学文献的见解,首先分析了数字企业(多边平台和生态系统)在发展和竞争战略方面的特殊性。在此基础上,本文探讨了将传统竞争分析应用于商业部门竞争的一些挑战。然后,我们讨论了一些与数字领域竞争执法相关的问题,从数据的作用、生态系统内和生态系统之间的竞争、消费者偏见和看门人的作用开始。最后,我们为经济学家和竞争管理机构提供了一个研究议程。
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引用次数: 12
The Fault in our Patents: How India can Innovate (and Grow) Better. 我们专利中的错误:印度如何更好地创新(和发展)。
Pub Date : 2021-04-01 DOI: 10.2139/ssrn.3884643
Akhil Bhardwaj
In the land of ‘Jugaad’, where everyone is able to find a frugal fix to
any problem, innovation is still dismal. Innovation in India is dismal not because of the lack of grey matter, but because India is systemically failing its inventors – firstly, through an education system that focuses on rote-learning rather than critical thinking, and secondly, through a broken system of filing patents. This article presents a deeper view of the latter and suggests tried-and-tested methods to improve upon it.
在“小聪明”的国度里,每个人都能找到一个省钱的方法来解决任何问题,创新仍然令人沮丧。印度的创新令人沮丧,不是因为缺乏灰质,而是因为印度在系统上辜负了它的发明家——首先,印度的教育体系侧重于死记硬背,而不是批判性思维;其次,印度的专利申请体系存在缺陷。本文对后者进行了更深入的探讨,并提出了一些久经考验的改进方法。
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引用次数: 0
Did Financial Consumers Benefit from the Digital Transformation? An Empirical Investigation and a Case Study 金融消费者是否从数字化转型中受益?实证调查与案例研究
Pub Date : 2021-03-24 DOI: 10.2139/ssrn.3914600
S. Park, M. Cho
This study aims to document the inter-linkages between two on-going global trends through an empirical investigation – (1) the rapid advancement of the ICT-driven innovations in delivering various types of financial service, and (2) the growing legal and regulatory efforts to protect consumers in the financial markets, after the recent financial crisis in particular. To that end, we compile a set of macro-level indicators on the aggregate outcomes of the financial service sector in Korea during the last three decades, and conduct a regression analysis to gauge the effects of the digital transformation (DT) in the country on those indicators. Using an ARDL-ECM as our empirical model, our results show that: Over time, the unit cost for financial intermediation in the country tends to move in tandem with the growth of economic output, although the profit portion of the cost did not exhibit a long-term relationship with the GDP trend; The long-term effect of the DT trend is negative (i.e., costsaving) for labor input and capital expenditure, which are shown to be statistically significant, and, as a consequence, its impact on the total intermediation cost is also positive and statistically significant. Based on the above outcomes, we elaborate their implications in designing a set of policy instruments to protect financial consumers, and also discuss the Vietnamese case as an illustration to extend this type of macro-level analysis for the purpose of coming up with a policy regime for financial consumers in an emerging-market context.
本研究旨在通过实证调查来记录两个正在进行的全球趋势之间的相互联系:(1)信息通信技术驱动的创新在提供各种类型的金融服务方面的快速发展,以及(2)在金融市场中保护消费者的法律和监管努力不断增加,特别是在最近的金融危机之后。为此,我们编制了一套关于过去三十年韩国金融服务业总体成果的宏观指标,并进行了回归分析,以衡量该国数字化转型(DT)对这些指标的影响。使用ARDL-ECM作为实证模型,我们的结果表明:随着时间的推移,我国金融中介单位成本倾向于与经济产出的增长同步变化,尽管成本的利润部分与GDP趋势不呈现长期关系;DT趋势对劳动力投入和资本支出的长期影响是负的(即成本节约),这在统计上显着,因此,它对总中介成本的影响也是正的,在统计上显着。基于上述结果,我们详细阐述了它们对设计一套保护金融消费者的政策工具的影响,并讨论了越南的案例作为一个例子,以扩展这种宏观层面的分析,为新兴市场背景下的金融消费者提出政策制度。
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引用次数: 0
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KDI School of Public Policy & Management Research Paper Series
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