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Research on the Dynamic Interrelationship between Economic Policy Uncertainty and Stock Market Returns 经济政策不确定性与股票市场回报之间的动态相互关系研究
Q4 Business, Management and Accounting Pub Date : 2024-08-11 DOI: 10.3390/jrfm17080347
Mingguo Zhao, Hail Park
This paper employs the Panel Vector Autoregression (PVAR) method to examine the dynamic interrelationship between Economic Policy Uncertainty (EPU) and stock market returns. The existing literature has not reached a consensus on the relationship between EPU and stock market returns, and there is a lack of comparative analysis of domestic and foreign EPU. Therefore, this paper is the first to incorporate domestic and foreign EPU, stock market returns, and output into a unified framework, considering the dual impact of domestic and foreign EPU shocks. Additionally, the generalizability of the results is ensured by including a large sample of nine emerging and eleven advanced economies. The main findings are as follows: First, a positive shock to foreign EPU leads to a decline in stock market returns and is stronger than the impact of domestic EPU. Second, a positive shock to stock market returns reduces both domestic and foreign EPU. Third, a rise in stock market returns promotes domestic output growth, while increases in domestic and foreign EPU suppress domestic output growth. Finally, the United States is a net exporter of EPU rather than a net importer.
本文采用面板向量自回归(PVAR)方法研究经济政策不确定性(EPU)与股市收益率之间的动态相互关系。现有文献对经济政策不确定性(EPU)与股市收益率之间的关系尚未达成共识,也缺乏对国内外经济政策不确定性(EPU)的比较分析。因此,本文首次将国内外 EPU、股市收益和产出纳入统一框架,考虑了国内外 EPU 冲击的双重影响。此外,通过纳入 9 个新兴经济体和 11 个发达经济体的大样本,确保了研究结果的普适性。主要结论如下:首先,国外 EPU 的正向冲击会导致股市回报率下降,其影响强于国内 EPU 的影响。第二,股市回报率的正向冲击会降低国内和国外 EPU。第三,股市回报率的上升会促进国内产出的增长,而国内和国外 EPU 的上升则会抑制国内产出的增长。最后,美国是 EPU 的净出口国,而不是净进口国。
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引用次数: 0
Econometric Analysis of SOFIX Index with GARCH Models 利用 GARCH 模型对 SOFIX 指数进行计量经济学分析
Q4 Business, Management and Accounting Pub Date : 2024-08-10 DOI: 10.3390/jrfm17080346
Plamen Petkov, Margarita Shopova, Tihomir Varbanov, Evgeni Ovchinnikov, Angelin Lalev
This paper investigates five different different Auto Regressive Moving Average (ARMA) and Generalized Auto Regressive Condition-al Heteroscedacity (GARCH models (GARCH, exponential GARCH or EGARCH, integrated GARCH or IGARCH, Component GARCH or CGARCH and the Glosten-Jagannathan-Runkle GARCH or GJR-GARCH) along with six distributions (normal, Student’s t, GED and their skewed forms), which are used to estimate the price dynamics of the Bulgarian stock index SOFIX. We use the best model to predict how much time it will take, after the latest crisis, for the SOFIX index to reach its historical peak once again. The empirical data cover the period between the years 2000 and 2024, including the 2008 financial crisis and the COVID-19 pandemic. The purpose is to answer which of the five models is the best at analysing the SOFIX price and which distribution is most appropriate. The results, based on the BIC and AIC, show that the ARMA(1,1)-CGARCH(1,1) specification with the Student’s t-distribution is preferred for modelling. From the results obtained, we can confirm that the CGARCH model specification supports a more appropriate description of SOFIX volatility than a simple GARCH model. We find that long-term shocks have a more persistent impact on volatility than the effect of short-term shocks. Furthermore, for the same magnitude, negative shocks to SOFIX prices have a more significant impact on volatility than positive shocks. According to the results, when predicting future values of SOFIX, it is necessary to include both a first-order autoregressive component and a first-order moving average in the mean equation. With the help of 5000 simulations, it is estimated that the chances of SOFIX reaching its historical peak value of 1976.73 (08.10.2007) are higher than 90% at 13.08.2087.
本文研究了五种不同的自回归移动平均(ARMA)和广义自回归条件异或(GARCH)模型(GARCH、指数 GARCH 或 EGARCH、综合 GARCH 或 IGARCH、成分 GARCH 或 CGARCH 和 Glosten-Jagannathan-Runkle GARCH 或 GJR-GARCH)以及六种分布(正态分布、Student's t 分布、GED 分布及其偏斜形式),用于估算保加利亚 SOFIX 股票指数的价格动态。我们使用最佳模型来预测 SOFIX 指数在最近一次危机后需要多长时间才能再次达到历史峰值。实证数据涵盖 2000 年至 2024 年,包括 2008 年金融危机和 COVID-19 大流行。目的是回答五个模型中哪一个最适合分析 SOFIX 价格,哪一个分布最合适。基于 BIC 和 AIC 的结果表明,ARMA(1,1)-CGARCH(1,1) 规范与 Student's t 分布是建模的首选。从得到的结果中,我们可以确认 CGARCH 模型比简单的 GARCH 模型更适合描述 SOFIX 的波动性。我们发现,长期冲击对波动率的影响比短期冲击更持久。此外,在相同幅度下,SOFIX 价格的负向冲击比正向冲击对波动率的影响更为显著。结果表明,在预测 SOFIX 的未来价值时,有必要在均值方程中包含一阶自回归成分和一阶移动平均值。在 5000 次模拟的帮助下,估计 SOFIX 在 2087 年 8 月 13 日达到其历史峰值 1976.73(2007 年 10 月 8 日)的概率高于 90%。
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引用次数: 0
Accounting and Macroeconomic Variables Explaining Investment: An Empirical Study with Panel Data in the Portuguese Textile Sector 解释投资的会计和宏观经济变量:葡萄牙纺织业面板数据实证研究
Q4 Business, Management and Accounting Pub Date : 2024-08-08 DOI: 10.3390/jrfm17080345
Isabel Oliveira, Jorge Figueiredo, Maria Faria, Francisco V. Martins
This study analyses the variables that influence investment in a sample of small, labour-intensive companies in a sector that is highly dependent on external demand and the world economy. The aim is to test the three traditional theories of investment (neoclassical theory, free cash flow theory and agency theory), as well as consider the existence of other variables endogenous and exogenous to the company, in order to obtain a model that is appropriate to the reality of the companies in the sample, which consists of 3859 companies in the Portuguese textile sector, for the period from 2010 to 2022. Although there are many studies on the subject, the sample of companies used is different from the others, presenting a unique perspective for understanding investment dynamics in this type of company. The methodology used involves estimating panel data models using the GMM method. The results show that there is a statistically significant and negative relationship between liquidity and asset turnover and investment, so the free cash flow and neoclassical theories, respectively, are partially verified. The agency theory is not confirmed. Other variables are significant in explaining investment: the debt structure is statistically negative, while the size of the company, the GDP and the interest rate are statistically positive. Return on assets proved not to be statistically significant in explaining investment. To summarise, the study highlights the need for financial strategies adapted to the unique characteristics of small businesses.
本研究以高度依赖外部需求和世界经济的小型劳动密集型企业为样本,分析了影响其投资的各种变量。研究的目的是检验三种传统的投资理论(新古典理论、自由现金流理论和代理理论),并考虑公司存在的其他内生和外生变量,以获得一个适合样本公司实际情况的模型,样本公司由葡萄牙纺织行业的 3859 家公司组成,时间跨度为 2010 年至 2022 年。虽然这方面的研究很多,但所使用的公司样本与其他样本不同,为了解这类公司的投资动态提供了一个独特的视角。所使用的方法包括使用 GMM 方法估计面板数据模型。结果显示,流动性和资产周转率与投资之间存在统计意义上的显著负相关关系,因此自由现金流理论和新古典理论分别得到了部分验证。代理理论没有得到证实。其他变量在解释投资方面具有重要意义:债务结构在统计上为负,而公司规模、国内生产总值和利率在统计上为正。事实证明,资产回报率在解释投资方面没有统计学意义。总之,这项研究突出表明,有必要制定适合小型企业独特特点的金融战略。
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引用次数: 0
May 2024 Buy-Sell Guide for Dow Jones 30 Stocks and Modified Omega Criterion 2024 年 5 月道琼斯 30 指数股票和修正欧米茄标准买入卖出指南
Q4 Business, Management and Accounting Pub Date : 2024-08-08 DOI: 10.3390/jrfm17080343
H. D. Vinod
We study recent monthly data to help long-term investors buy or sell from the 30 Dow Jones Industrial Average (DJIA) Index components. The recommendations are based on six stock-picking algorithms and their average ranks. We explain the reasons for ignoring the claim that the Sharpe ratio algorithm lacks monotonicity. Since the version of “omega” in the literature uses weights that distort the actual gain–pain ratio faced by investors, we propose new weights. We use data from 30 stocks using the past 474 months (39+ years) of monthly closing prices, ending in May 2024. Our buy-sell recommendations also use newer “pandemic-proof” out-of-sample portfolio performance comparisons from the R package ‘generalCorr’. We report twelve sets of ranks for both out-of- and in-sample versions of the six algorithms. Averaging the twelve sets yields the top and bottom k stocks. For example, k=2 suggests buying Visa Inc. and Johnson & Johnson while selling Coca-Cola and Procter & Gamble.
我们研究最近的月度数据,帮助长期投资者买入或卖出道琼斯工业平均指数 (DJIA) 的 30 个成分股。推荐基于六种选股算法及其平均排名。我们解释了忽略夏普比率算法缺乏单调性这一说法的原因。由于文献中的 "Ω "版本使用的权重扭曲了投资者实际面临的收益-痛苦比,因此我们提出了新的权重。我们使用过去 474 个月(39 年以上)的月收盘价(截至 2024 年 5 月)来计算 30 只股票的数据。我们的买卖建议还使用了 R 软件包 "generalCorr "中最新的 "防大流行 "样本外投资组合业绩比较。我们报告了六种算法的样本外版本和样本内版本的 12 组排名。对这 12 组排名进行平均,即可得出排名最高和最低的 k 种股票。例如,k=2 建议买入 Visa 公司和强生公司,同时卖出可口可乐公司和宝洁公司。
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引用次数: 0
Impact of Diversity and Inclusion on Firm Performance: Moderating Role of Institutional Ownership 多元化与包容性对公司业绩的影响:机构所有权的调节作用
Q4 Business, Management and Accounting Pub Date : 2024-08-08 DOI: 10.3390/jrfm17080344
Rubel Saha, Md Nurul Kabir, Syed Asif Hossain, Sheikh Mohammad Rabby
We investigate the impact of diversity and inclusion (D&I) on firm performance for the period 2017–2021. While the existing literature examines the relationship between diversity and firm performance, little is known about the combined effects of D&I on firm performance. This study aims to utilize the most widely used data source, the Global Diversity and Inclusion (D&I) Index, provided by the LSEG workspace. Using 8089 firm-year observations from a sample of globally listed firms and an OLS regression model, we find that firms with a higher D&I score have better firm performance, as measured by Tobin’s Q. Our moderating analysis shows that the impact of D&I on firm performance is more pronounced for firms with higher institutional ownership. We also split institutional ownership into domestic and foreign institutional ownership and show that the influence of D&I on firm performance differs between domestic and foreign institutional ownership. Our result is robust when we use an alternative proxy for firm performance and consider the findings without US firms in the sample. The overall findings indicate that considering a diverse and inclusive workforce is worthwhile for key stakeholders when making policy decisions.
我们研究了 2017-2021 年间多元化与包容性(D&I)对企业绩效的影响。虽然现有文献研究了多样性与公司业绩之间的关系,但对 D&I 对公司业绩的综合影响却知之甚少。本研究旨在利用最广泛使用的数据源--LSEG 工作区提供的全球多元化与包容性(D&I)指数。我们的调节分析表明,D&I 对公司业绩的影响对机构所有权较高的公司更为明显。我们还将机构所有权分为国内机构所有权和国外机构所有权,结果表明,国内机构所有权和国外机构所有权对企业绩效的影响是不同的。如果我们使用企业绩效的替代变量,并考虑样本中没有美国企业的情况,我们的结果是稳健的。总体研究结果表明,主要利益相关者在做出政策决策时,值得考虑多元化和包容性的员工队伍。
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引用次数: 0
Political Regimes, Stock Liquidity, and Information Asymmetry in a Global Context 全球背景下的政治制度、股票流动性和信息不对称
Q4 Business, Management and Accounting Pub Date : 2024-08-08 DOI: 10.3390/jrfm17080342
Jang-Chul Kim, Qing Su, Teressa Elliott
This paper investigates the relationship between a country’s political governance and financial market dynamics, with a specific focus on non-U.S. stocks listed on the NYSE. Utilizing an ordinary least squares (OLS) regression model with heteroscedasticity-robust (Huber–White) estimators, we analyze the impact of political governance on stock liquidity and information asymmetry. Our analysis shows that stocks from democracies demonstrate improved liquidity and decreased information asymmetry, contrasting with stocks from autocracies that exhibit the opposite trend. Furthermore, shifts in political regimes dynamically impact stock liquidity and information transparency. These findings offer essential insights for investors, policymakers, and regulators, contributing to informed decision making and the formulation of policies that promote market health and transparency. Additionally, these findings underscore the importance of promoting political stability and transparent governance to foster healthy and efficient financial markets.
本文研究了一个国家的政治治理与金融市场动态之间的关系,特别关注在纽约证券交易所上市的非美国股票。我们利用普通最小二乘法(OLS)回归模型和异方差稳健(Huber-White)估计器,分析了政治治理对股票流动性和信息不对称的影响。我们的分析表明,民主国家的股票流动性提高,信息不对称程度降低,而专制国家的股票则表现出相反的趋势。此外,政治体制的转变会动态地影响股票流动性和信息透明度。这些发现为投资者、政策制定者和监管者提供了重要的启示,有助于做出明智的决策和制定促进市场健康和透明度的政策。此外,这些研究结果还强调了促进政治稳定和透明治理对培育健康高效的金融市场的重要性。
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引用次数: 0
Does a Change in the ESG Ratings Influence Firms’ Market Value? Evidence from an Event Study 环境、社会和公司治理评级的变化会影响公司的市场价值吗?事件研究的证据
Q4 Business, Management and Accounting Pub Date : 2024-08-06 DOI: 10.3390/jrfm17080340
Paolo Maccarrone, Alessandro Illuzzi, Simone Inguanta
In recent years, the field of “ESG finance” has seen rapid growth, resulting in the emergence and expansion of ESG ratings and rating agencies. This study investigates how financial investors react to updates in ESG ratings provided by two prominent ESG rating agencies, namely MSCI and Refinitiv. The main objective is to determine whether any positive or negative changes in a company’s sustainability ratings directly impact its market value. The Event Study methodology was used for this investigation, which analyses the Cumulated Average Abnormal Returns (CAARs) of economic events to assess their influence on corporate valuations. We analysed over 840 rating updates (events) using a sample of 75 companies across various industries, all listed on major stock exchanges. Our findings indicate that shifts in sustainability ratings, as evaluated by the two rating agencies, do not significantly impact companies’ market capitalisation. Furthermore, these outcomes remain consistent over time, suggesting that financial markets are not assigning increasing significance to ESG ratings. We offer potential explanations for these findings, which are discussed in light of the existing literature on the subject.
近年来,"环境、社会和公司治理(ESG)金融 "领域发展迅速,ESG 评级和评级机构也随之出现并不断扩大。本研究调查了金融投资者对两家著名的 ESG 评级机构(即 MSCI 和 Refinitiv)提供的 ESG 评级更新的反应。主要目的是确定公司可持续发展评级的任何正面或负面变化是否会直接影响其市场价值。本次调查采用了 "事件研究 "方法,即分析经济事件的累积平均异常回报率 (CAAR),以评估其对企业估值的影响。我们以各行业的 75 家公司为样本,分析了超过 840 次评级更新(事件),这些公司均在主要证券交易所上市。我们的研究结果表明,由两家评级机构评估的可持续发展评级的变化不会对公司的市值产生重大影响。此外,这些结果随着时间的推移保持一致,表明金融市场并没有赋予环境、社会和治理评级越来越大的重要性。我们根据现有的相关文献对这些发现提出了可能的解释。
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引用次数: 0
The Impact of Selected Financial Ratios on Economic Value Added: Evidence from Croatia 特定财务比率对经济附加值的影响:克罗地亚的证据
Q4 Business, Management and Accounting Pub Date : 2024-08-05 DOI: 10.3390/jrfm17080338
Robert Zenzerović, Manuel Benazić
Traditional financial performance measures should be extended to provide additional information to stakeholders. One such extension is the economic value added (EVA). It shows residual profit above the cost of financing, both creditors and equity financing. This paper elaborates on the impact of selected financial ratios on EVA to total assets and EVA to capital employed using the 20-year aggregated data of non-financial business entities operating in Croatia. It answers the research question of which of the selected financial ratios impacts the above-mentioned EVA-based ratios. Applying dynamic panel data modeling using the generalized method of moments technique resulted in the derivation of two models. The human capital efficiency ratio was statistically significant in both models, positively affecting EVA/total assets and EVA/capital employed. In contrast, the debt ratio and net profit margin were significant only in the second model, where EVA/capital employed was a dependent variable. The research results indicate that the debt ratio affects EVA/capital employed negatively while the net profit margin has a positive effect, confirming the existing research. Total liabilities/earnings before interest, taxes, depreciation and amortization, and total asset turnover were not found to be significant in either of the two models.
应扩展传统的财务业绩衡量标准,为利益相关者提供更多信息。经济增加值(EVA)就是这样一种扩展。它显示的是高于融资成本(包括债权人和股权融资)的剩余利润。本文利用在克罗地亚运营的非金融企业实体的 20 年汇总数据,详细阐述了选定财务比率对 EVA 与总资产之比以及 EVA 与已动用资本之比的影响。本文回答了所选财务比率中哪些比率会影响上述基于 EVA 的比率这一研究问题。通过使用广义矩法技术建立动态面板数据模型,得出了两个模型。在这两个模型中,人力资本效率比率都具有统计意义,对 EVA/总资产和 EVA/已动用资本产生正向影响。相比之下,负债率和净利润率只在第二个模型中显著,而 EVA/ 已用资本是一个因变量。研究结果表明,负债率对 EVA/资本占用率有负面影响,而净利润率则有正面影响,这证实了现有的研究。总负债/未计利息、税项、折旧和摊销前利润以及总资产周转率在两个模型中均不显著。
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引用次数: 0
Forecasting Credit Cycles: The Case of the Leveraged Finance Market in 2024 and Outlook 预测信贷周期:2024 年杠杆融资市场案例与展望
Q4 Business, Management and Accounting Pub Date : 2024-08-05 DOI: 10.3390/jrfm17080339
Edward I. Altman
There are certain times in our economic and financial environments when it makes sense to assess carefully and dispassionately where we are in the credit cycle and how this cycle relates to the business cycle. Now, mid-2024, is one of those times, as the economic uncertainties are at substantial levels. This note reflects my long history of studying credit cycles dating back to the early 1970s. My current assessment is that the Benign Credit Cycle we have enjoyed since 2010, with the exception of a few months in 2016 and early 2020, ended in 2023. We recently reached an inflection point for an average credit risk scenario. This assessment is based on an analysis of a number of historical indicators over the last 50 years. This conclusion is tempered by the possibility that the U.S. credit picture will continue its heightened risk trend toward a Stressed Scenario by the end of 2024, and combined with a “hard-landing” economic recession, we could witness another financial-credit crisis.
在我们的经济和金融环境中,有些时候我们有必要认真、冷静地评估我们所处的信贷周期,以及这一周期与商业周期的关系。现在,即 2024 年年中,就是这样一个时期,因为经济的不确定性已经达到了相当高的水平。本报告反映了我自 20 世纪 70 年代初以来对信贷周期的长期研究。我目前的评估是,自 2010 年以来,除了 2016 年和 2020 年初的几个月外,我们一直享有的良性信贷周期将于 2023 年结束。我们最近达到了一个平均信贷风险情景的拐点。这一评估是基于对过去 50 年中多项历史指标的分析得出的。在得出这一结论的同时,我们也要考虑到,到 2024 年底,美国信贷状况可能会继续呈现风险加剧的趋势,向受压情景发展,再加上经济衰退的 "硬着陆",我们可能会目睹另一场金融信贷危机。
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引用次数: 0
Realized Volatility Spillover Connectedness among the Leading European Currencies after the End of the Sovereign-Debt Crisis: A QVAR Approach 主权债务危机结束后欧洲主要货币之间的已实现波动溢出关联性:QVAR 方法
Q4 Business, Management and Accounting Pub Date : 2024-08-05 DOI: 10.3390/jrfm17080337
Michail Nerantzidis, Nikolaos Stoupos, Panayiotis Tzeremes
This paper examines the time-varying spillover effects and connectedness between the euro and other EU and non-EU currencies after the end of the sovereign-debt crisis. We employ the Quantile Vector Autoregression connectedness approach using intraday data for seven currencies (the euro, the British pound, the Swiss franc, the Polish zloty, the Hungarian forint, the Czech koruna, and the Norwegian krone) spanning from 1 January 2016 to 30 November 2022. The results indicate that, almost in all quantiles, the currencies of Eastern European Group countries (i.e., Czech Republic, Hungary, and Poland) are net contributors of information spillovers to other currencies, while currencies of non-EU countries (Switzerland, UK, and Norway) are net takers. Further, we find that the euro is the highest transmitter of net information spillovers to all other currencies until 2021. Interestingly, after 2021, the euro changes to net information spillover taker from all other currencies; highlighting that external shocks (e.g., COVID-19, the energy crisis) have significant risk spillover effects on the European currency market. Policymakers and market participants could benefit from knowing which currency drives developments to avoid unexpected consequences.
本文研究了主权债务危机结束后欧元与其他欧盟和非欧盟货币之间的时变溢出效应和关联性。我们利用从 2016 年 1 月 1 日至 2022 年 11 月 30 日的七种货币(欧元、英镑、瑞士法郎、波兰兹罗提、匈牙利福林、捷克克朗和挪威克朗)的盘中数据,采用了量子向量自回归关联性方法。结果表明,几乎在所有量级上,东欧集团国家(即捷克共和国、匈牙利和波兰)的货币都是其他货币信息溢出的净贡献者,而非欧盟国家(瑞士、英国和挪威)的货币则是净接受者。此外,我们还发现,在 2021 年之前,欧元是所有其他货币净信息溢出的最大传递者。有趣的是,2021 年之后,欧元变成了所有其他货币的净信息溢出接受者;这凸显了外部冲击(如 COVID-19、能源危机)对欧洲货币市场具有显著的风险溢出效应。政策制定者和市场参与者可以从了解哪种货币推动发展中获益,以避免意想不到的后果。
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引用次数: 0
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Journal of Risk and Financial Management
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