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Descomposición de la brecha salarial de género en el Ecuador 厄瓜多尔性别工资差距的分解
Pub Date : 2021-09-20 DOI: 10.21919/REMEF.V17I1.706
Diego Emilio Linthon Delgado, Lizethe Berenice Méndez-Heras
Objetivo: Estimar los componentes que determinan la brecha salarial de género en el mercado laboral de los empleados de públicos y privados del Ecuador. Metodología: Se utilizó el método de descomposición Blinder-Oaxaca (1973) con corrección por sesgo de selección sobre los datos de la Encuesta Nacional de Empleo, Desempleo y Subempleo (ENEMDU) de septiembre de 2020. Resultados: La brecha salarial de género es de 35.6 puntos porcentuales. Las dotaciones de las mujeres (escolaridad y experiencia laboral) contribuyen a reducir la brecha mientras que los factores no observados (discriminación) la incrementan. Recomendaciones: La política pública debe orientarse hacia combatir la discriminación para reducir la desigualdad de género. Limitaciones e implicaciones: Se sugiere que más investigaciones se dediquen a estudiar los factores determinantes de la discriminación de género. Originalidad: Este trabajo aporta evidencia sobre la desigualdad salarial de género basada en un método de descomposición con corrección de selección. Conclusiones: La discriminación hacia las mujeres es la principal causa de la desigualdad salarial de género en el mercado laboral del Ecuador.
目的:评估影响厄瓜多尔公共和私营部门雇员劳动力市场性别薪酬差距的因素。方法:采用Blinder-Oaxaca分解法(1973),对2020年9月全国就业、失业和就业不足调查(ENEMDU)的数据进行选择偏差校正。结果:性别薪酬差距为35.6个百分点。女性的天赋(教育和工作经验)有助于缩小差距,而未观察到的因素(歧视)则加剧了差距。建议:公共政策应以打击歧视为导向,以减少性别不平等。限制和影响:建议进一步研究性别歧视的决定因素。本文的目的是分析性别薪酬不平等的影响,并分析性别薪酬不平等的影响。结论:对妇女的歧视是厄瓜多尔劳动力市场性别薪酬不平等的主要原因。
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引用次数: 2
Opciones reales secuenciales cuadrinomiales y volatilidad cambiante: incertidumbres tecnológicas 四项顺序实物期权和变化的波动性:技术不确定性
Pub Date : 2021-09-20 DOI: 10.21919/REMEF.V17I1.500
G. Milanesi
Las inversiones en biotecnologías para el desarrollo de vacunas se caracterizan por ser un proceso de etapas secuenciales, desde su desarrollo hasta el lanzamiento comercial, con múltiples fuentes de incertidumbre, destacándose el riesgo tecnológico y de mercado. Estas características hacen que modelos como los árboles de decisión y opciones reales binomiales, no sean apropiados. El trabajo desarrolla un modelo numérico de valoración para este tipo de inversiones, con distribución de probabilidad cuatrinomial, caracterizando los riesgos tecnológicos y de mercado, opciones secuenciales y volatilidad cambiante. Es usado el método de análisis de casos con un proyecto de inversión de opciones secuenciales de desarrollo de un fármaco y posterior lanzamiento al mercado. El proyecto es valuado con el modelo propuesto y comparado su resultado con las clásicas alternativas. Los resultados obtenidos exponen la superior capacidad del modelo para valorar opciones secuenciales con múltiples fuentes de incertidumbre y volatilidad cambiante. Este es una herramienta de valuación es sencillo y versátil, sin la complejidad y refinamiento de otras propuestas analíticas.
用于开发疫苗的生物技术投资的特点是从开发到商业推出的连续阶段过程,有多种不确定性来源,突出了技术和市场风险。这些特征使得决策树和二项实物期权等模型不合适。本研究的目的是评估在巴西和国外进行的投资,这些投资的特点是技术和市场风险、连续期权和波动率的变化。本研究采用案例分析的方法,对一种药物的连续开发和随后的市场推出进行投资项目。利用提出的模型对该项目进行了评估,并将其结果与经典方案进行了比较。本研究的目的是评估该模型在不确定性和波动性变化的多个来源下的顺序选项的价值。这是一个简单和通用的评估工具,没有其他分析建议的复杂性和细化。
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引用次数: 2
TOPICS IN BANKING AND FINANCIAL INSTITUTIONS 银行和金融机构的主题
Pub Date : 2021-09-15 DOI: 10.21919/remef.v16i0
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引用次数: 0
Dependence in the Banking Sector of the United States and Mexico: A Copula Approach 美国和墨西哥银行业的依赖性:Copula方法
Pub Date : 2021-09-14 DOI: 10.21919/remef.v16i0.705
Christian Bucio Pacheco, Luis Villanueva, Raúl de Jesús Gutiérrez
The objective of this work is to estimate the patterns of dependence between the yields of the stock prices of the main banks of the United States (US) and Mexico. We estimate the patterns of absolute dependence and tail dependence through copulas of the Archimedean family and the use of rolling windows of 245 days. The data employed come from the daily share prices at closing from January 2, 2015, to December 31, 2020, for seven banks. Our results show that: i) there are patterns of high dependence among the main banks in the US, ii) there are patterns of very low dependence among the main banks in the US and Mexico, and iii) there are patterns of low dependence among the main banks in Mexico. These results have several implications, among them that the high-dependency patterns obtained among major US banks limit the joint selection of these US bank equity assets in an investment portfolio. Although this paper focuses on a small sample of banks, they represent an important portion of the banking sector in both countries. Given the limited literature on this subject in Mexico, our paper contributes to expanding this literature with a novel approach.
这项工作的目的是估计美国(US)和墨西哥的主要银行的股票价格收益率之间的依赖模式。我们通过阿基米德科的copulas和使用245天的滚动窗来估计绝对依赖和尾部依赖的模式。所用数据来自7家银行2015年1月2日至2020年12月31日的每日收盘价。我们的研究结果表明:1)美国主要银行之间存在高度依赖的模式;2)美国和墨西哥主要银行之间存在非常低依赖的模式;3)墨西哥主要银行之间存在低依赖的模式。这些结果有几个含义,其中包括在美国主要银行之间获得的高度依赖模式限制了这些美国银行股权资产在投资组合中的联合选择。虽然本文关注的是银行的小样本,但它们代表了两国银行业的重要组成部分。鉴于墨西哥关于这一主题的文献有限,我们的论文有助于用一种新颖的方法扩展这一文献。
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引用次数: 0
Asymmetric Volatility Relevance in Risk Management: An Empirical Analysis using Stock Index Futures 风险管理中的非对称波动相关性:基于股指期货的实证分析
Pub Date : 2021-09-14 DOI: 10.21919/remef.v16i0.704
G. Benavides
The objective of this research work is to show the relevance of asymmetries in estimating volatility. The methodology consists in the application of ARCH-type models and implied volatilities of options (IV) to estimate Value-at-Risk (VaR). These for a portfolio of stock index futures for various time horizons. The empirical analysis is carried out for the futures contracts for the Standard and Poors 500 and Mexican Stock Exchange Indices. According to the results, the IV model is superior in terms of precision compared to the ARCH-type models. It is recommended to use the relevant statistical gains when asymmetries are included with respect to when asymmetries are not used. The referred gains range from 4 to 150 basis points of minimum capital risk requirements. The originality of the present work consists of showing the importance of considering the asymmetric effects with IV and ARCH-type models in volatility forecasts within risk management analysis. It is concluded that the methodology means gains in monetary terms.
这项研究工作的目的是显示不对称性在估计波动率方面的相关性。该方法包括应用arch型模型和期权隐含波动率(IV)来估计风险价值(VaR)。这些是不同时间范围的股指期货投资组合。本文对标准普尔500指数和墨西哥证券交易所指数期货合约进行了实证分析。结果表明,IV型模型在精度上优于arch型模型。建议在包含不对称时使用相关的统计增益,而不是不使用不对称时。所提及的收益从最低资本风险要求的4个基点到150个基点不等。本研究的独创性在于展示了在风险管理分析的波动率预测中考虑IV和arch型模型的不对称效应的重要性。结论是,该方法意味着货币方面的收益。
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引用次数: 0
A New Index for Public Investment Management 公共投资管理新指标
Pub Date : 2021-09-10 DOI: 10.21919/REMEF.V17I1.703
Antonio Rojas Canela, J. C. Moreno-Brid
The objective of this article is to improve the most widely used indicator of quality in public investment management (the PIMI). The methodology was to use an alternative algorithm to build a new version of the PIMI and calculate it for sixteen Latin American countries. The result is a New PIMI that appears better than the original one, as it has a positive correlation with an objective indicator of the efficiency of public investment, which is not achieved by the original PIMI. We recommend the use of the New PIMI, proposed here, as a control variable in studies on aggregated public investment and its impacts on economic growth and social welfare.One limitation of the New PIMI is that it reflects the quality of public investment management at the aggregate level and based on de jure criteria, thus not capturing key differences that occur at a more disaggregated or informal level. Even so, the relevance, originality and replicability of the New PIMI make it a significant contribution to knowledge in this field.
本文的目的是改进公共投资管理中最广泛使用的质量指标(PIMI)。方法是使用另一种算法来构建一个新版本的PIMI,并为16个拉丁美洲国家计算它。结果是新的PIMI比原来的PIMI看起来更好,因为它与公共投资效率的客观指标呈正相关,这是原来的PIMI没有做到的。我们建议在研究公共总投资及其对经济增长和社会福利的影响时,使用本文提出的新PIMI作为控制变量。新PIMI的一个限制是,它反映了公共投资管理在总体水平上的质量,并以法律标准为基础,因此没有捕捉到在更细分或非正式水平上发生的关键差异。即便如此,新PIMI的相关性、原创性和可复制性使其对这一领域的知识作出了重大贡献。
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引用次数: 1
Discretion in the application of the goodwill impairment test in European banks 在欧洲银行应用商誉减值测试的自由裁量权
Pub Date : 2021-09-09 DOI: 10.21919/remef.v16i0.702
Jorge Pallarés Sanchidrián, Javier Pérez García, J. A. Gonzalo-Angulo
In the absence of amortization of goodwill, the purpose of this study is to identify whether the impairment test was applied uniformly between 2005 and 2015 at the 45 biggest banks in Europe, during the first decade of IFRS application. Likewise, an attempt has been made to verify whether such application has been insufficient and late. Through a significant sample, statistical tools already widely used in other studies have been applied to contrast the behavior of entities. The results obtained show that impairment policies have been applied unevenly in each of the countries. These conclusions could support the return to a valuation pattern that takes into account the systematic amortization of goodwill, apart from its impairment. This paper reveals how impairment in European banks has been recognized during a crucial period of time that includes a major financial crisis. The study suggests a discretionary and opportunistic implementation of accounting regulations which does not reveal the economic conditions inherent to the financial activity of the leading European banks, making comparability difficult and, ultimately, making the financial information less relevant.
在没有商誉摊销的情况下,本研究的目的是确定在国际财务报告准则应用的第一个十年期间,欧洲45家最大的银行在2005年至2015年间是否统一应用了减值测试。同样,也试图核实这种申请是否不够和太晚。通过一个显著的样本,已经在其他研究中广泛使用的统计工具被应用于对比实体的行为。所得结果表明,减值政策在各国的应用并不均衡。这些结论可以支持回归一种估值模式,即考虑到商誉的系统摊销,而不是其减值。本文揭示了在包括重大金融危机在内的关键时期,欧洲银行的减值是如何被确认的。该研究建议酌情和机会性地执行会计法规,这没有揭示欧洲主要银行金融活动固有的经济条件,使可比性变得困难,最终使财务信息不那么相关。
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引用次数: 0
Strategies in Retirement Fund Selection in the Mexican Retirement Market 1997-2018 1997-2018年墨西哥退休市场的基金选择策略
Pub Date : 2021-09-08 DOI: 10.21919/remef.v16i0.657
L. R. Rodríguez-Reyes, A. Samaniego, Mireya Pasillas
Objective: This research studies individual investment strategies that can be employed by Mexican workers to choose a retirement savings company, to provide evidence that can guide workers and governments in their pursuit for a higher replacement rate. Methods: To accomplish such task, more than 200,000 individual decisions in rolling-windows are simulated, based on more than twenty-years of market prices on retirement funds in Mexico (1997-2018). Outcome: Results indicate that contrarian-based strategies dominate momentum-based strategies in three out of four categories of funds. Recommendations: Moreover, in two out of four categories of funds the highest return is reached by the system’s average, calling for the introduction of an ETF-type of product to the Mexican financial market. Originality: The novelty of this research resides in the perspective of the analysis, positioning the Mexican worker in the role of an investor making a financial choice. Conclusions: The maximum average return is the best way to select a retirement fund manager when there is a guaranteed minimum pension, which acts as a risk-hedge, as it is in the Mexican case.
目的:本研究研究墨西哥工人选择退休储蓄公司时可采用的个人投资策略,为工人和政府追求更高的替代率提供依据。方法:为了完成这一任务,基于墨西哥退休基金20多年的市场价格(1997-2018),模拟了20多万个人的滚动窗口决策。结果:结果表明,在四分之三的基金类别中,基于逆势的策略主导了基于动量的策略。建议:此外,在四类基金中,有两类基金的回报率达到了系统平均回报率的最高水平,这要求在墨西哥金融市场引入etf类型的产品。独创性:这项研究的新颖之处在于分析的角度,将墨西哥工人定位为做出财务选择的投资者的角色。结论:在保证最低养老金作为风险对冲的情况下,最大平均收益是选择退休基金经理的最佳方式,就像墨西哥的情况一样。
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引用次数: 1
Competencia en el mercado de crédito entre los bancos dominantes en México 墨西哥主要银行之间信贷市场的竞争
Pub Date : 2021-09-06 DOI: 10.21919/remef.v16i0.699
Lizethe Berenice Méndez-Heras, F. Venegas-Martínez, Diego Emilio Linthon-Delgado
Objetivo: Esta investigación mide el grado de competencia de los bancos que dominan el mercado del crédito en México en 2004-2016. Para ello se utiliza el enfoque no-estructural de las medidas de competencia con base en la teoría de la Nueva Organización Industrial Empírica (NOIE). Metodología: Se estima un modelo de ecuaciones simultáneas con Mínimos Cuadrados Generalizados en 2 Etapas (MCG2E) en datos panel para obtener el estadístico de variación conjetural, el cual mide el grado de coordinación entre los bancos. Resultados: La evidencia empírica obtenida sugiere que los bancos dominantes tienen un comportamiento oligopólico de Cournot en 2004-2016. Implicaciones: Contrario a lo que se esperaba, la investigación también sugiere que el aumento de las comisiones bancarias ha tenido un efecto positivo en la demanda del crédito. Originalidad: Hasta donde los autores saben no se ha realizado un estudio sobre la competencia en el mercado de crédito entre los bancos dominantes en México con base en la NOIE. Recomendaciones: Debido a lo anterior, se proponen en las conclusiones varias recomendaciones en materia de regulación prudencial para que se promueva una mayor competencia. Conclusiones: En el sector crediticio, los bancos en México tienen un elevado poder de mercado con altos márgenes financieros en un oligopolio de Cournot.
目的:本研究旨在衡量2004-2016年墨西哥信贷市场主导银行的竞争程度。本文提出了一种基于新实证产业组织理论(NOIE)的竞争措施的非结构性方法。方法:在面板数据中估计一个具有两阶段广义最小二乘(MCG2E)的联立方程模型,以获得估计变异统计量,该统计量衡量银行之间的协调程度。结果:本文对2004-2016年主导银行的古诺寡头垄断行为进行了实证研究。含义:与预期相反,研究还表明,银行费用的增加对信贷需求产生了积极的影响。在本文中,我们提出了一种基于NOIE的信贷市场竞争研究方法。建议:因此,结论中提出了一些审慎监管的建议,以促进更大的竞争。结论:在信贷领域,墨西哥银行在古诺寡头垄断中具有较高的市场支配力和较高的金融利润率。
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引用次数: 0
FinTech’s business model in Mexico, a preliminary analysis 金融科技在墨西哥的商业模式,初步分析
Pub Date : 2021-08-31 DOI: 10.21919/remef.v16i0.590
Luz del Carmen Díaz-Peña
This study analyzes the key success variables in a fintech´s business model. The data was obtained by a questionnaire applied to fifteen Mexican fintech’s. Preliminary results show that the key success variables, according to a significant correlation with the firm´s growth, are: an efficient use of infrastructure, customer-oriented services, competitive wages and security of information; the more common type of fintech operation is the “payments and mobile money services” followed by “crowdfunding” and “investments”. In Mexico, there is not a formal source that makes easier the knowledge of the industry, so the originality of the study lies on the contribution to a better introductory understanding of how fintech´s operate, including other dimensions like the social and environmental ones which had not been considering before. Its limitation is the number of questioned firms, but future complementary studies could be done. It can be concluded that the technological dimension is the most relevant for the industry.
本研究分析了金融科技商业模式中的关键成功变量。这些数据是通过对15家墨西哥金融科技公司进行问卷调查获得的。初步结果表明,与企业成长显著相关的关键成功变量是:有效利用基础设施、以客户为导向的服务、有竞争力的工资和信息安全;最常见的金融科技业务类型是“支付和移动货币服务”,其次是“众筹”和“投资”。在墨西哥,没有一个正式的来源,使行业的知识更容易,因此,这项研究的独创性在于更好地了解金融科技的运作方式,包括其他方面,如社会和环境方面,以前没有考虑过。它的局限性在于被调查公司的数量,但未来可以进行补充研究。可以得出结论,技术维度是最相关的行业。
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引用次数: 0
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Revista Mexicana de Economía y Finanzas
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