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Is short-term firm performance an indicator of a sustainable financial performance? Empirical evidence 短期公司业绩是可持续财务业绩的指标吗?经验证据
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-08-29 DOI: 10.1108/sef-03-2023-0136
U. Kayani, C. Gan, M. Rabbani, Yousra Trichilli
PurposeThis study aims to thoroughly examine and understand the relationship between working capital management (WCM) and the sustainable financial performance (FP) in the context of the New Zealand companies listed on stock exchange.Design/methodology/approachThis study has applied various regression techniques to examine WCM and the sustainable FP relationship. The data set period is from 2009 to 2019. The results are robust upon various layers of robustness parameters. The system-generalized method of moments is applied for managing endogeneity issue.FindingsThe research reveals compelling evidence of a meaningful connection between WCM and sustainable FP indicators. The study specifically highlights the significant negative associations between the cash conversion cycle, average collection period and average age of inventory with the firm’s sustainable FP. Through robust analyses and various parameter adjustments, the study ensures the credibility and reliability of its conclusions, further reinforcing the impact of WCM on the financial health of New Zealand-listed firms.Practical implicationsThis study provides future directions for researchers to explore the dynamic relationship between WCM and a firm sustainable FP because it is still a demanding and challenging area. Future research may care to explore the optimal way to reduce the cash conversion cycle, average collection period and average age of inventory for New Zealand firms. The current study does provide insights to NZ financial managers, which is useful for improving sustainable FP by efficiently managing WCM.Originality/valueWCM is problematic and constitutes a notable challenge; it requires further research, especially in small economies such as New Zealand. Hence, it is an updated and fresh attempt based on a larger data set to measure the empirical relationship between WCM and the sustainable performance of New Zealand-listed firms. Furthermore, the current study uses dynamic panel data estimation techniques in addition to multiple regression techniques.
目的本研究旨在深入研究和理解新西兰上市公司营运资本管理(WCM)与可持续财务绩效(FP)之间的关系。设计/方法/方法本研究应用了各种回归技术来检验WCM和可持续FP关系。数据集期间为2009年至2019年。结果在不同的鲁棒性参数层上是鲁棒的。将系统广义矩方法应用于内生性问题的处理。研究结果表明,WCM与可持续FP指标之间存在着有意义的联系。该研究特别强调了现金转换周期、平均回收期和平均库存年限与公司可持续FP之间的显著负相关。通过稳健的分析和各种参数调整,该研究确保了其结论的可信度和可靠性,进一步强化WCM对新西兰上市公司财务健康的影响。实践意义本研究为研究人员探索WCM与企业可持续FP之间的动态关系提供了未来的方向,因为这仍然是一个要求很高且具有挑战性的领域。未来的研究可能会探索新西兰公司缩短现金转换周期、平均回收期和平均库存年限的最佳方式。目前的研究确实为新西兰财务经理提供了见解,这有助于通过有效管理WCM来提高可持续FP。原创性/价值WCM存在问题,构成了一个显著的挑战;它需要进一步研究,尤其是在新西兰这样的小型经济体。因此,基于更大的数据集来衡量WCM与新西兰上市公司可持续绩效之间的实证关系是一种更新和新鲜的尝试。此外,目前的研究除了使用多元回归技术外,还使用了动态面板数据估计技术。
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引用次数: 2
Conviction, diversification or something else: constructing optimal portfolios with additional attributes 信念、多样化或其他东西:构建具有额外属性的最佳投资组合
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-08-23 DOI: 10.1108/sef-04-2023-0207
Muhammad Farid Ahmed, S. Satchell
PurposeThe purpose of this paper is to provide theory for some popular models and strategies used by practitioners in constructing optimal portfolios. King (2007), for example, advocated adding a diversification term to mean-variance problems to create better portfolios and provided clear empirical evidence that this is beneficial.Design/methodology/approachThe authors provide an analytical framework to help us understand different portfolio construction practices that may incorporate diversification and conviction strategies; this allows us to connect our analysis to ideas in psychophysics and behavioural finance. The critical psychological ideas are cognitive dissonance and entropy; the economics are based on expected utility theory. The empirical section uses the theory outlined and provides the basis for constructing such portfolios.FindingsThe model presented allows the incorporation of different strategies within a mean-variance framework, ranging from diversification and conviction strategies to more ESG-oriented ones. The empirical analysis provides a practical application.Originality/valueTo the best of the authors’ knowledge, this model is the first to bridge the gap between portfolio optimisation and the psychological ideas mentioned in a coherent analytical framework.
目的本文的目的是为从业者在构建最优投资组合时所使用的一些流行模型和策略提供理论依据。例如,King(2007)主张在均值-方差问题中加入多元化项,以创建更好的投资组合,并提供了明确的经验证据,证明这是有益的。作者提供了一个分析框架来帮助我们理解不同的投资组合构建实践,这些实践可能包括多样化和信念策略;这使我们能够将我们的分析与心理物理学和行为金融学的思想联系起来。关键的心理学观点是认知失调和熵;经济学基于预期效用理论。实证部分使用概述的理论,并为构建这样的投资组合提供基础。所提出的模型允许在均值-方差框架内合并不同的策略,从多样化和信念策略到更多的esg导向策略。实证分析提供了实际应用。原创性/价值据作者所知,这个模型是第一个在连贯的分析框架中弥合投资组合优化和心理学思想之间差距的模型。
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引用次数: 0
The dynamic trade-off theory of capital structure: evidence from a panel of US industrial companies 资本结构的动态权衡理论——来自美国工业企业的实证研究
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-08-18 DOI: 10.1108/sef-04-2023-0200
Ridha Esghaier
PurposeThis paper aims to test the empirical validity of the dynamic trade-off theory in its symmetric and asymmetric versions in explaining the capital structure of a panel of publicly listed US industrial firms over the period from 2013 to 2019. It analyzes the existence of an adjustment of leverage toward its target level and whether the speed of this adjustment is influenced by the debt measure, the model specification or/and the fact that the actual debt ratio is higher or lower than its long-term target level.Design/methodology/approachThis paper uses a quantitative research methodology using panel data analysis under the partial adjustment model and the error correction model using the generalized moment method in first differences and in systems to explore the dynamic nature of firms’ capital structure behavior.FindingsThe results show that the effects of the conventional determinants of leverage are globally consistent with the trade-off theory predictions. The dynamic versions confirm that firms exhibit leverage-targeting behavior. Although this speed of adjustment (SOA) depends on the debt and model specifications, it is around 60% on average. The estimated SOA is higher for the market leverage measure compared to the book leverage. The asymmetric adjustment model reveals that firms are more sensitive to reducing leverage than increasing it when they are away from their target; overleveraged firms exhibit approximately 5% faster adjustment than underleveraged firms when book leverage is used.Originality/valueThe originality of this research paper lies in its development and test of an asymmetric model to allow the leverage adjustment speed to vary depending on whether the firm’s debt ratio is above or below its target level and the methodological approach as well as the different model specifications used and the insights generated through the application of rigorous econometric techniques.
目的本文旨在检验对称和非对称动态权衡理论在解释2013年至2019年美国上市工业企业资本结构时的实证有效性。它分析了杠杆率是否向其目标水平调整,以及这种调整的速度是否受到债务计量、模型规范或/或实际负债率高于或低于其长期目标水平的事实的影响。设计/方法论/方法本文采用了一种定量研究方法,在部分调整模型下使用面板数据分析,在第一差分和系统中使用广义矩方法的误差修正模型,来探索企业资本结构行为的动态性质。研究结果表明,传统杠杆决定因素的影响与权衡理论的预测是全局一致的。动态版本证实了企业表现出杠杆瞄准行为。尽管这种调整速度(SOA)取决于债务和模型规范,但平均约为60%。与账面杠杆相比,市场杠杆衡量的SOA估计值更高。不对称调整模型表明,当企业偏离目标时,它们对降低杠杆比增加杠杆更敏感;当使用账面杠杆时,杠杆率过高的公司比杠杆率过低的公司表现出大约5%的调整速度。独创性/价值这篇研究论文的独创性在于它开发和测试了一个不对称模型,该模型允许杠杆调整速度根据公司的负债率是高于还是低于其目标水平而变化,方法论方法以及使用的不同模型规范和通过应用严格的计量经济学产生的见解技术。
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引用次数: 0
A cross-quantile correlation and causality-in-quantile analysis on the relationship between green investments and energy commodities during the COVID-19 pandemic period 2019冠状病毒病大流行期间绿色投资与能源大宗商品关系的跨分位数相关性和分位数内因果关系分析
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-07-26 DOI: 10.1108/sef-02-2023-0070
Aarzoo Sharma, A. Tiwari, E. Abakah, Freeman Brobbey Owusu
PurposeThis paper aims to examine the cross-quantile correlation and causality-in-quantiles between green investments and energy commodities during the outbreak of COVID-19. To be specific, the authors aim to address the following questions: Is there any distributional predictability among green bonds and energy commodities during COVID-19? Is there exist any directional predictability between green investments and energy commodities during the global pandemic? Can green bonds hedge the risk of energy commodities during a period of the financial crisis.Design/methodology/approachThe authors use the nonparametric causality in quantile and cross-quantilogram (CQ) correlation approaches as the estimation techniques to investigate the distributional and directional predictability between green investments and energy commodities respectively using daily spot prices from January 1, 2020, to March 26, 2021. The study uses daily closing price indices S&P Green Bond Index as a representative of the green bond market. In the case of energy commodities, the authors use S&P GSCI Natural Gas Spot, S&P GSCI Biofuel Spot, S&P GSCI Unleaded Gasoline Spot, S&P GSCI Gas Oil Spot, S&P GSCI Brent Crude Spot, S&P GSCI WTI, OPEC Oil Basket Price, Crude Oil Oman, Crude Oil Dubai Cash, S&P GSCI Heating Oil Spot, S&P Global Clean Energy, US Gulf Coast Kerosene and Los Angeles Low Sulfur CARB Diesel Spot.FindingsFrom the CQ correlation results, there exists an overall negative directional predictability between green bonds and natural gas. The authors find that the directional predictability between green bonds and S&P GSCI Biofuel Spot, S&P GSCI Gas Oil Spot, S&P GSCI Brent Crude Spot, S&P GSCI WTI Spot, OPEC Oil Basket Spot, Crude Oil Oman Spot, Crude Oil Dubai Cash Spot, S&P GSCI Heating Oil Spot, US Gulf Coast Kerosene-Type Jet Fuel Spot Price and Los Angeles Low Sulfur CARB Diesel Spot Price is negative during normal market conditions and positive during extreme market conditions. Results from the non-parametric causality in the quantile approach show strong evidence of asymmetry in causality across quantiles and strong variations across markets.Practical implicationsThe quantile time-varying dependence and predictability results documented in this paper can help market participants with different investment targets and horizons adopt better hedging strategies and portfolio diversification to aid optimal policy measures during volatile market conditions.Social implicationsThe outcome of this study will promote awareness regarding the environment and also increase investor’s participation in the green bond market. Further, it allows corporate institutions to fulfill their social commitment through the issuance of green bonds.Originality/valueThis paper differs from these previous studies in several aspects. First, the authors have included a wide range of energy commodities, comprising three green bond indices and 14 energy commodity indices. Sec
目的研究新冠肺炎疫情期间绿色投资与能源商品之间的跨分位数相关性和分位数内因果关系。具体而言,作者旨在解决以下问题:在2019冠状病毒病期间,绿色债券和能源商品之间是否存在分布可预测性?在全球大流行期间,绿色投资和能源商品之间是否存在方向性可预测性?在金融危机期间,绿色债券能否对冲能源大宗商品的风险?设计/方法/方法作者使用分位数和交叉量化图(CQ)相关方法中的非参数因果关系作为估计技术,分别使用2020年1月1日至2021年3月26日的每日现货价格来研究绿色投资和能源商品之间的分布和方向可预测性。本研究采用每日收盘价指数标准普尔绿色债券指数作为绿色债券市场的代表。在能源商品方面,作者使用标准普尔GSCI天然气现货、标准普尔GSCI生物燃料现货、标准普尔GSCI无铅汽油现货、标准普尔GSCI天然气现货、标准普尔GSCI布伦特原油现货、标准普尔GSCI WTI原油、欧佩克石油篮子价格、阿曼原油、迪拜原油现货、标准普尔GSCI取暖油现货、标准普尔全球清洁能源、美国墨西哥湾沿岸煤油和洛杉矶低硫碳水化合物柴油现货。从CQ相关结果来看,绿色债券与天然气之间总体上存在负向可预测性。作者发现,绿色债券与标普GSCI生物燃料现货、标普GSCI天然气原油现货、标普GSCI布伦特原油现货、标普GSCI WTI现货、欧佩克油篮子现货、阿曼原油现货、迪拜原油现货、标普GSCI取暖油现货、美国墨西哥湾煤油型喷气燃料现货价格和洛杉矶低硫碳水化合物柴油现货价格之间的方向性可预测性在正常市场条件下为负,在极端市场条件下为正。从分位数方法的非参数因果关系的结果显示了强有力的证据,在因果关系的不对称,在不同的分位数和市场之间的强烈变化。本文所记录的分位数时变依赖性和可预测性结果可以帮助具有不同投资目标和视野的市场参与者在波动的市场条件下采取更好的对冲策略和投资组合多样化,以帮助制定最优的政策措施。社会启示本研究结果将提升环保意识,并增加投资者对绿色债券市场的参与。此外,它允许企业机构通过发行绿色债券来履行其社会承诺。本文与以往的研究有几个不同之处。首先,作者纳入了广泛的能源商品,包括3个绿色债券指数和14个能源商品指数。其次,作者探讨了两个市场之间的依赖关系,特别是在COVID-19大流行期间。第三,作者在给定的数据集上应用了CQ和分位数因果关系方法。由于绿色和可持续金融市场正在急剧增长,世界正在向环境友好型实践转移,因此了解绿色债券对其他金融市场的影响至关重要。在这方面,该研究通过记录绿色债券与原油、天然气、汽油、煤油、柴油、原油、取暖油、生物燃料和其他能源商品之间的深入联系,为文献做出了贡献。
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引用次数: 0
Time-varying dependence and currency tail risk during the Covid-19 pandemic Covid-19大流行期间的时变依赖性和货币尾部风险
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-07-18 DOI: 10.1108/sef-11-2022-0542
F. Gobbi, S. Mulinacci
PurposeThe purpose of this paper is to introduce a generalization of the time-varying correlation elliptical copula models and to analyse its impact on the tail risk of a portfolio of foreign currencies during the Covid-19 pandemic.Design/methodology/approachThe authors consider a multivariate time series model where marginal dynamics are driven by an autoregressive moving average (ARMA)–Glosten-Jagannathan-Runkle–generalized autoregressive conditional heteroscedastic (GARCH) model, and the dependence structure among the residuals is given by an elliptical copula function. The correlation coefficient follows an autoregressive equation where the autoregressive coefficient is a function of the past values of the correlation. The model is applied to a portfolio of a couple of exchange rates, specifically US dollar–Japanese Yen and US dollar–Euro and compared with two alternative specifications of the correlation coefficient: constant and with autoregressive dynamics.FindingsThe use of the new model results in a more conservative evaluation of the tail risk of the portfolio measured by the value-at-risk and the expected shortfall suggesting a more prudential capital allocation policy.Originality/valueThe main contribution of the paper consists in the introduction of a time-varying correlation model where the past values of the correlation coefficient impact on the autoregressive structure.
目的介绍时变相关椭圆copula模型的推广,并分析其对新冠肺炎大流行期间外汇投资组合尾部风险的影响。设计/方法论/方法作者考虑了一个多变量时间序列模型,其中边际动力学由自回归移动平均(ARMA)-Glosten Jagannathan Runkle–广义自回归条件异方差(GARCH)模型驱动,残差之间的依赖结构由椭圆copula函数给出。相关系数遵循自回归方程,其中自回归系数是相关性的过去值的函数。该模型应用于两种汇率的组合,特别是美元-日元和美元-欧元,并与相关系数的两种替代规范进行了比较:常数和自回归动态。发现新模型的使用导致了对投资组合尾部风险的更保守的评估,该风险由风险价值和预期缺口来衡量,这表明了更谨慎的资本配置政策。原创性/价值本文的主要贡献在于引入了一个时变相关模型,其中相关系数的过去值影响自回归结构。
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引用次数: 0
Impacts of climate pact on global oil and gas sector stocks 气候协议对全球油气行业股票的影响
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-07-11 DOI: 10.1108/sef-03-2023-0149
V. Kumari, Rima Assaf, Faten Moussa, Dharen Kumar Pandey
PurposeThe purpose of this study is to examine the impacts of the Glasgow Climate Pact on global oil and gas sector stocks. Further, this study also examines if the nations' Climate Change Performance Index (CCPI) and World Energy Trilemma Index (WETI) drive the abnormal returns around the event.Design/methodology/approachThe authors apply the event study analysis to 691 global oil and gas firms across 52 countries. Further, they apply the cross-sectional examination of cumulative abnormal returns (CARs) across 502 firms.FindingsThe emerging markets experienced significant negative abnormal returns on the event day. The CCPI negatively affects longer pre-event CARs, while WETI significantly negatively associates with CARs during longer pre- and post-event windows. Volatility is negatively related to pre- and post-event abnormal returns, while past returns positively drive pre-event period CARs but negatively drive post-event window CARs. This study finds an interesting association between liquidity (CACL) and CARs, as CACL positively drives pre-event CARs, but post-event CARs are negatively associated with CACL. The CARs do not significantly correlate with leverage, size and book-to-market ratio.Practical implicationsThis study's findings on the impact of climate risks on financial markets have significant implications for global regulatory bodies. Policymakers should reduce stock volatility and enhance environmental disclosures by publicly traded companies to accurately price and assess the potential impacts of climate risks. Governments should examine the effects of environmental restrictions on investor behavior, especially in developing countries with limited access to capital. Therefore, policymakers need to consider the far-reaching impacts of environmental regulations while introducing them.Originality/valueClimate risks are expected to impact the global financial market significantly. Prior studies provide limited evidence on how such climate pacts impact the oil and gas sector. Hence, this study, while bridging this gap, provides important implications for policymakers and stakeholders, particularly the emerging markets that are more sensitive.
目的本研究的目的是考察《格拉斯哥气候公约》对全球石油和天然气行业存量的影响。此外,本研究还考察了各国的气候变化绩效指数(CCPI)和世界能源三重困境指数(WETI)是否推动了该事件的异常回报。设计/方法/方法作者将事件研究分析应用于52个国家的691家全球石油和天然气公司。此外,他们对502家公司的累积异常回报率(CAR)进行了横断面检查。发现新兴市场在活动当天出现了显著的负异常回报。CCPI对较长的事件前CAR产生负面影响,而WETI在较长的事件前后窗口期间与CAR显著负相关。波动性与事件前和事件后的异常回报呈负相关,而过去的回报正驱动事件前时段CAR,但负驱动事件后窗口CAR。本研究发现,流动性(CACL)与CAR之间存在有趣的关联,因为CACL正驱动事件前的CAR,但事件后的CAR与CACL负相关。CAR与杠杆率、规模和账面市值比率没有显著相关性。实际意义这项关于气候风险对金融市场影响的研究结果对全球监管机构具有重要意义。政策制定者应减少股票波动,并加强上市公司的环境披露,以准确定价和评估气候风险的潜在影响。各国政府应研究环境限制对投资者行为的影响,特别是在获得资本机会有限的发展中国家。因此,政策制定者在引入环境法规时需要考虑其深远影响。原创性/价值气候风险预计将对全球金融市场产生重大影响。先前的研究对此类气候协议如何影响石油和天然气行业提供了有限的证据。因此,这项研究在弥合这一差距的同时,为政策制定者和利益相关者,特别是更敏感的新兴市场,提供了重要的启示。
{"title":"Impacts of climate pact on global oil and gas sector stocks","authors":"V. Kumari, Rima Assaf, Faten Moussa, Dharen Kumar Pandey","doi":"10.1108/sef-03-2023-0149","DOIUrl":"https://doi.org/10.1108/sef-03-2023-0149","url":null,"abstract":"\u0000Purpose\u0000The purpose of this study is to examine the impacts of the Glasgow Climate Pact on global oil and gas sector stocks. Further, this study also examines if the nations' Climate Change Performance Index (CCPI) and World Energy Trilemma Index (WETI) drive the abnormal returns around the event.\u0000\u0000\u0000Design/methodology/approach\u0000The authors apply the event study analysis to 691 global oil and gas firms across 52 countries. Further, they apply the cross-sectional examination of cumulative abnormal returns (CARs) across 502 firms.\u0000\u0000\u0000Findings\u0000The emerging markets experienced significant negative abnormal returns on the event day. The CCPI negatively affects longer pre-event CARs, while WETI significantly negatively associates with CARs during longer pre- and post-event windows. Volatility is negatively related to pre- and post-event abnormal returns, while past returns positively drive pre-event period CARs but negatively drive post-event window CARs. This study finds an interesting association between liquidity (CACL) and CARs, as CACL positively drives pre-event CARs, but post-event CARs are negatively associated with CACL. The CARs do not significantly correlate with leverage, size and book-to-market ratio.\u0000\u0000\u0000Practical implications\u0000This study's findings on the impact of climate risks on financial markets have significant implications for global regulatory bodies. Policymakers should reduce stock volatility and enhance environmental disclosures by publicly traded companies to accurately price and assess the potential impacts of climate risks. Governments should examine the effects of environmental restrictions on investor behavior, especially in developing countries with limited access to capital. Therefore, policymakers need to consider the far-reaching impacts of environmental regulations while introducing them.\u0000\u0000\u0000Originality/value\u0000Climate risks are expected to impact the global financial market significantly. Prior studies provide limited evidence on how such climate pacts impact the oil and gas sector. Hence, this study, while bridging this gap, provides important implications for policymakers and stakeholders, particularly the emerging markets that are more sensitive.\u0000","PeriodicalId":45607,"journal":{"name":"Studies in Economics and Finance","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48303093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
COVID-19, stability and regulation: evidence from Indonesian banks 2019冠状病毒病,稳定与监管:来自印尼银行的证据
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-07-10 DOI: 10.1108/sef-12-2022-0569
P. Pamungkas, Taufiq Arifin, Irwan Trinugroho, Evan Lau, B. Sergi
PurposeThis study aims to investigate the effect of credit relaxation policy during the COVID-19 pandemic and its efficacy as a countercyclical policy on bank risk and stability.Design/methodology/approachUsing a sample of 39 listed Indonesian banks, the authors investigate the effect of credit relaxation policy on banks’ risk and stability. Data were retrieved from Eikon DataStream from monthly financial statements from June 2019 to December 2020. The authors use panel data analysis with a fixed-effect estimator to estimate the model.FindingsThe authors find that the credit relaxation policy affects banks’ stability. The authors also find no significant relationship between the policy and bank risk measured by non-performing loans. The authors also find that the policy mainly affects small banks and both state-owned and private banks.Originality/valueThis research has some policy implications that issuing prompt regulations to respond to urgent situations is needed and is very important to face crisis conditions and reduce the negative impact of such crises.
目的研究新冠肺炎疫情期间信贷宽松政策的效果及其逆周期政策对银行风险和稳定性的影响。设计/方法/方法以39家印尼上市银行为样本,研究信贷放松政策对银行风险和稳定性的影响。数据来自Eikon DataStream,来自2019年6月至2020年12月的月度财务报表。作者使用面板数据分析和固定效应估计器对模型进行估计。研究发现,信贷放松政策对银行的稳定性有影响。作者还发现,以不良贷款衡量的政策与银行风险之间没有显著的关系。作者还发现,该政策主要影响小银行以及国有和私营银行。独创性/价值本研究具有一定的政策启示,即需要及时出台法规以应对紧急情况,对于面对危机状况和减少危机的负面影响非常重要。
{"title":"COVID-19, stability and regulation: evidence from Indonesian banks","authors":"P. Pamungkas, Taufiq Arifin, Irwan Trinugroho, Evan Lau, B. Sergi","doi":"10.1108/sef-12-2022-0569","DOIUrl":"https://doi.org/10.1108/sef-12-2022-0569","url":null,"abstract":"\u0000Purpose\u0000This study aims to investigate the effect of credit relaxation policy during the COVID-19 pandemic and its efficacy as a countercyclical policy on bank risk and stability.\u0000\u0000\u0000Design/methodology/approach\u0000Using a sample of 39 listed Indonesian banks, the authors investigate the effect of credit relaxation policy on banks’ risk and stability. Data were retrieved from Eikon DataStream from monthly financial statements from June 2019 to December 2020. The authors use panel data analysis with a fixed-effect estimator to estimate the model.\u0000\u0000\u0000Findings\u0000The authors find that the credit relaxation policy affects banks’ stability. The authors also find no significant relationship between the policy and bank risk measured by non-performing loans. The authors also find that the policy mainly affects small banks and both state-owned and private banks.\u0000\u0000\u0000Originality/value\u0000This research has some policy implications that issuing prompt regulations to respond to urgent situations is needed and is very important to face crisis conditions and reduce the negative impact of such crises.\u0000","PeriodicalId":45607,"journal":{"name":"Studies in Economics and Finance","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44804001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Too hot and too close. Bitcoin and gold dynamics during COVID times 太热了,离得太近了。新冠疫情期间的比特币和黄金动态
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-07-05 DOI: 10.1108/sef-03-2023-0123
Pablo Agnese
PurposeThis paper aims to analyze the connectedness between bitcoin (BTC) and other traditional assets (e.g. metals) in times of financial turbulence like the COVID pandemic. The purpose is to see to what extent BTC is mimicking the role precious metals are known for, that of being a reliable store of value.Design/methodology/approachThe author relies on vector autoregressive modeling, as it yields a very flexible framework for forecasting and interpreting the interdependencies among variables, while providing a very intuitive framework when the underlying structural model is unknown. The author performs the analysis first for the whole sample and then for a “COVID-19 subsample.”FindingsThe author finds evidence supporting a stronger link between BTC and gold in COVID-19 times, with BTC the main driving force. The author quantifies the contribution of BTC to the surge in gold’s price during those early months of COVID-19 in the order of 28%, thus lending support to the idea of intrinsic or fundamental value in BTC.Practical implicationsInvestors might consider including BTC in their portfolios as a long-term investment, very much like they do with gold.Social implicationsCryptos at large represent an important check on the ever-expanding monetary policy pursued by central banks in recent times.Originality/valueThe COVID-19 pandemic has taken its toll on the world economy. It is thus timely to reevaluate the relationship between BTC and other assets such as gold and silver, which are traditionally seen as safe havens against uncertainty.
目的本文旨在分析在新冠肺炎疫情等金融动荡时期,比特币(BTC)与其他传统资产(如金属)之间的联系。目的是看看BTC在多大程度上模仿了贵金属的作用,即成为可靠的价值存储。设计/方法论/方法作者依赖于向量自回归建模,因为它为预测和解释变量之间的相互依赖性提供了一个非常灵活的框架,同时在底层结构模型未知时提供了一种非常直观的框架。作者首先对整个样本进行分析,然后对“新冠肺炎子样本”进行分析。结果作者发现有证据支持在新冠肺炎时期BTC和黄金之间有更强的联系,BTC是主要驱动力。作者将BTC在新冠肺炎最初几个月对黄金价格飙升的贡献量化为28%,从而支持BTC的内在价值或基本面价值。实际含义投资者可能会考虑将BTC作为长期投资纳入投资组合,就像对待黄金一样。社会影响加密货币是对各国央行近年来不断扩大的货币政策的重要制约。原创/价值新冠肺炎疫情对世界经济造成了损失。因此,现在是时候重新评估BTC与黄金和白银等其他资产之间的关系了,这些资产传统上被视为抵御不确定性的避风港。
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引用次数: 0
Evolution of short-term contrarian profits 短期反向利润的演变
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-07-04 DOI: 10.1108/sef-12-2022-0599
Xuebing Yang, Huilan Zhang
PurposeThe purpose of this paper is to study the US stock market and try to explain why short-term contrarian profits have largely disappeared in the past two decades.Design/methodology/approachIn this work, the authors decompose the short-term contrarian profits into cross-sectional variations, firm-level overreactions and lead-lag effects to study the changes in their shares. Then, the authors study the behavior of the subgroups in the winner and loser subportfolios of contrarian investment strategies.FindingsThe authors find that short-term contrarian profits have largely vanished since 2000. Changes in the shares of the three components of contrarian profits, which are cross-sectional variations, firm-level overreactions and lead-lag effects, are not the main reason for the disappearance of contrarian profits in the past two decades. Instead, the disappearance of short-term contrarian profits is primarily due to the heterogeneous evolution of subgroups in the portfolio, which leads to a decrease in the overall level of overreactions that drive the contrarian profit.Originality/valueThe work explains the disappearance of short-term contrarian profits in the US stock market.
目的本文旨在研究美国股市,并试图解释为什么短期反向利润在过去二十年中基本消失。设计/方法/方法在这项工作中,作者将短期反向利润分解为横截面变化、公司层面的过度反应和超前滞后效应,以研究其股票的变化。然后,作者研究了反向投资策略的赢家和输家子投资组合中子群的行为。作者发现,自2000年以来,短期反向利润已基本消失。反向利润的三个组成部分,即横截面变化、公司层面的过度反应和超前滞后效应,其份额的变化并不是过去二十年反向利润消失的主要原因。相反,短期反向利润的消失主要是由于投资组合中子群的异质进化,这导致驱动反向利润的过度反应的总体水平下降。独创性/价值这部作品解释了美国股市短期反向利润的消失。
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引用次数: 0
Does uncertainty promote exchange rate volatility? Global evidence 不确定性是否会促进汇率波动?全球证据
IF 1.9 Q2 Economics, Econometrics and Finance Pub Date : 2023-06-23 DOI: 10.1108/sef-12-2022-0579
Muhammad Aftab, M. Naeem, M. Tahir, Izlin Ismail
PurposeExchange rate volatility is an important factor affecting investors and policymakers. This study aims to examine the impact of uncertainties, in terms of changes in economic policy, monetary policy and global financial markets, on exchange rate volatility.Design/methodology/approachThe study uses the GARCH (1,1) univariate model to calculate exchange rate volatility. Economic and monetary policy uncertainties are measured using news-based indices, while global financial market volatility is measured using the implied volatility index. Panel autoregressive distributed lag modeling is used to analyze the impact of uncertainty on exchange rate volatility in the short and long run. The sample consists of 26 developed and emerging markets from 2005 to 2020.FindingsThe study finds that economic policy uncertainty significantly increases exchange rate volatility. Similarly, global financial market uncertainty leads to increased exchange rate volatility. The effect of US monetary policy uncertainty reduces exchange rate volatility.Originality/valueThis research contributes to the existing literature on exchange rate fluctuations by examining the impact of uncertainties on exchange rate volatility. The study uses novel news-based indices for measuring economic and monetary policy uncertainties and includes a broader sample of emerging and advanced markets. The findings have important implications for investors and policymakers.
目的汇率波动是影响投资者和决策者的一个重要因素。本研究旨在考察经济政策、货币政策和全球金融市场变化方面的不确定性对汇率波动的影响。设计/方法/方法本研究使用GARCH(1,1)单变量模型来计算汇率波动率。经济和货币政策的不确定性使用基于新闻的指数来衡量,而全球金融市场的波动性使用隐含波动性指数来衡量。面板自回归分布滞后模型用于分析不确定性对短期和长期汇率波动的影响。样本包括2005年至2020年的26个发达市场和新兴市场。研究发现,经济政策的不确定性显著增加了汇率波动。同样,全球金融市场的不确定性导致汇率波动加剧。美国货币政策不确定性的影响降低了汇率波动。原创性/价值这项研究通过研究不确定性对汇率波动的影响,为现有的汇率波动文献做出了贡献。该研究使用新的基于新闻的指数来衡量经济和货币政策的不确定性,并包括更广泛的新兴和发达市场样本。研究结果对投资者和政策制定者具有重要意义。
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引用次数: 1
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Studies in Economics and Finance
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