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On the measurement of corporate governance and its impact on bank profitability and credit risk: The case of Tunisian listed banks 公司治理的衡量及其对银行盈利能力和信贷风险的影响:突尼斯上市银行案例
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-05-07 DOI: 10.1111/1467-8268.12748
Amal Jmaii, Noomene Zaafouri, Hella Guerchi Mehri

This paper explores the influence of corporate governance on the profitability and credit risk of a sample of listed banks in Tunisia. The methodology involves two main steps. Firstly, principal component analysis is employed to construct a novel governance index, assessing the quality of both internal and external bank governance. This index takes into account the degree of compliance and application of directives and laws mandated by the Tunisian Central Bank regarding banking governance. In the second step, panel data analysis is conducted to scrutinize the impact of internal and external governance mechanisms on the profitability and risk of Tunisian banks. The results reveal that as the governance index increases, the profitability of banks improves in terms of return on assets and stock market performance. Additionally, a higher governance index is correlated with a reduction in credit risks, as indicated by lower instances of non-performing loans and an increased rate of coverage for classified debts. To enhance the robustness of our results, we calculate a standard governance score based on existing empirical literature. Furthermore, to account for potential endogeneity, we employ the two-step system generalized method of moments.

本文探讨了公司治理对突尼斯上市银行盈利能力和信贷风险的影响。研究方法包括两个主要步骤。首先,采用主成分分析法构建新的治理指数,评估银行内部和外部治理的质量。该指数考虑了突尼斯中央银行授权的银行治理指令和法律的遵守和应用程度。第二步,进行面板数据分析,仔细研究内部和外部治理机制对突尼斯银行盈利能力和风险的影响。结果显示,随着治理指数的提高,银行在资产回报率和股市表现方面的盈利能力也会提高。此外,治理指数越高,信贷风险就越低,这表现在不良贷款率越低,分类债务覆盖率越高。为了增强结果的稳健性,我们根据现有的经验文献计算了标准治理评分。此外,为了考虑潜在的内生性,我们采用了两步系统广义矩法。
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引用次数: 0
Impact of carbon pricing on comparative advantage in environmental goods export in sub-Saharan Africa: Evidence of asymmetries from South Africa 碳定价对撒哈拉以南非洲环境产品出口比较优势的影响:南非的不对称证据
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-04-04 DOI: 10.1111/1467-8268.12742
Chika A. Anisiuba, Hillary Chijindu Ezeaku, Samuel Manyo Takon, Maureen Ifeoma Iyke-Ofoedu, Godwin Imo Ibe, Obiamaka P. Egbo

This paper examines the asymmetric link between carbon pricing and the comparative advantage in environmental goods exports in South Africa from 1995 to 2021. The non-linear autoregressive distributed lag model is utilized to investigate the effects of both minor and major positive and negative fluctuations in carbon taxes, technological innovation, and energy transition on comparative advantage. The results reveal that carbon taxes have an asymmetric effect on comparative advantage in both the short and long runs, with positive shocks exerting a greater beneficial influence than negative shocks. Specifically, it is found that a 1% reduction in carbon taxes corresponds to a 1.24% decline in the response variable, whereas a 1% increase in carbon taxes is associated with a 2.72% increase in comparative advantage in environmental goods exports, which is twice as large. The study also uncovers evidence of an asymmetric relationship between low-carbon technological innovation and comparative advantage in environmental goods exports. However, strong evidence of a long-run asymmetric linkage between the energy transition and comparative advantage is not established. Nevertheless, it is noteworthy that a positive shift in energy transition is linked with a 0.32% rise in comparative advantage in environmental goods exports, whereas a negative shift in energy transition corresponds to a 0.11% decrease. The practical policy implications are also discussed.

本文研究了 1995 年至 2021 年碳定价与南非环境产品出口比较优势之间的非对称联系。本文利用非线性自回归分布滞后模型,研究了碳税、技术创新和能源转型的小幅和大幅正负波动对比较优势的影响。结果显示,碳税对比较优势的短期和长期影响是不对称的,正向冲击比负向冲击产生的有利影响更大。具体而言,研究发现,碳税每降低 1%,响应变量就会下降 1.24%,而碳税每增加 1%,环境产品出口的比较优势就会增加 2.72%,增幅是响应变量的两倍。研究还发现了低碳技术创新与环境产品出口比较优势之间存在非对称关系的证据。不过,能源转型与比较优势之间存在长期非对称联系的有力证据并不成立。不过,值得注意的是,能源转型的积极转变与环境产品出口比较优势的 0.32% 上升相关联,而能源转型的消极转变则对应着 0.11% 的下降。本文还讨论了实际政策影响。
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引用次数: 0
Impact de l'intégration financière régionale sur le commerce intra régional des produits manufacturés dans la zone CEDEAO 地区金融一体化对西非经共体地区内制成品贸易的影响
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-27 DOI: 10.1111/1467-8268.12746
Abdoul Rachid Issoufou Dogo

Cet article évalue l'impact de l'intégration financière régionale sur le commerce intra régional des produits manufacturés dans les pays de la Communauté Economique des Etats de l'Afrique de l'Ouest (CEDEAO) en utilisant un modèle de gravité augmenté sur la période 2005–2019. En utilisant une mesure de régionalisation financière basée sur l'intégration des marchés de crédits et la différence des taux d'intérêts, les résultats empiriques indiquent que l'intégration financière régionale a un impact positif et significatif sur le commerce intra régional des produits manufacturés aussi bien dans les pays exportateurs que dans les pays importateurs dans la zone CEDEAO. Les résultats des différents tests de robustesse effectués corroborent cette conclusion et confirment la consistance de nos résultats. L'étude suggère aux décideurs politiques d'encourager les reformes politiques visant à renforcer davantage le processus de régionalisation financière afin de faciliter l'accès aux capitaux et de réduire les contraintes des financements pour booster les investissements et le commerce dans le secteur manufacturier au niveau régional.

本文利用 2005-2019 年期间的增强引力模型,评估了区域金融一体化对西非国家经济共同体(西非经共体)国家区域内制成品贸易的影响。利用基于信贷市场一体化和利率差异的金融区域化衡量标准,实证结果表明,区域金融一体化对西非国家经济共同体(ECOWAS)地区出口国和进口国的区域内制成品贸易都有积极而显著的影响。各种稳健性检验的结果证实了这一结论,并确认了我们结果的一致性。研究建议,决策者应鼓励旨在进一步加强金融区域化进程的政策改革,以促进资本的获取并减少融资限制,从而在区域层面促进制造业的投资和贸易。
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引用次数: 0
Long-run impacts of the conflict in Ukraine on grain imports and prices in Africa 乌克兰冲突对非洲谷物进口和价格的长期影响
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-27 DOI: 10.1111/1467-8268.12745
Lacina Balma, Tobias Heidland, Sebastian Jävervall, Hendrik Mahlkow, Adamon N. Mukasa, Andinet Woldemichael

Russia's invasion of Ukraine has threatened global grain supplies as it reduces production and exports while increasing trade costs. While the overall share of Africa's trade with Ukraine and Russia is small, the concentration of imports in products such as wheat, other grains, and fertilizer is critical to food security. This paper investigates the long-term impacts of the conflict on grain imports and prices in Africa. We use a long-run general equilibrium trade model to study three scenarios that may evolve as a consequence of the conflict: (1) a heavily reduced Ukrainian production of wheat and other grains; (2) rising trade costs with Ukraine and Russia due to disrupted trade routes in the Black Sea and the sanctions against trading with Russia; and (3) an outright ban on Russian grain export. The model simulations show that the conflict severely affects grain imports, raising local prices for wheat and other grains, with especially strong effects in high import-dependent countries. That creates risks for food security in some African countries.

俄罗斯对乌克兰的入侵威胁到全球粮食供应,因为它减少了生产和出口,同时增加了贸易成本。虽然非洲与乌克兰和俄罗斯的总体贸易份额很小,但小麦、其他谷物和化肥等产品的集中进口对粮食安全至关重要。本文研究了冲突对非洲谷物进口和价格的长期影响。我们利用长期一般均衡贸易模型研究了冲突可能导致的三种情况:(1) 乌克兰小麦和其他谷物产量大幅减少;(2) 由于黑海贸易路线中断和对与俄罗斯贸易的制裁,与乌克兰和俄罗斯的贸易成本上升;(3) 完全禁止俄罗斯谷物出口。模型模拟显示,冲突严重影响了谷物进口,抬高了当地小麦和其他谷物的价格,对高度依赖进口的国家影响尤为严重。这给一些非洲国家的粮食安全带来了风险。
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引用次数: 0
Determinants of illicit capital movement in China-Africa trade: Evidence of trade misinvoicing 中非贸易中非法资本流动的决定因素:贸易虚开发票的证据
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-26 DOI: 10.1111/1467-8268.12747
Arcade Ndoricimpa, Eduardo Araral

Illicit financial flows have been an issue of great concern over the past decades due to the challenge they present for economic development in Africa. Illicit financial flows undermine the productivity and growth of African economies as countries lose foreign exchange and tax revenues. Countries lose financial resources needed for development programs, hence undermining social service delivery and retarding poverty reduction. To effectively combat illicit financial flows, it is imperative to examine their determinants. This study seeks to examine the determinants of illicit capital movement in the China-Africa trade through the mechanisms of trade misinvoicing over the period 1990–2019. The IMF's Direction of Trade Statistics (DOTS) database is used to estimate trade misinvoicing. Estimates using mirror trade data indicate that both exports of Africa to China and imports from China to Africa are mainly underinvoiced. The net effect shows that trade misinvoicing in the China-Africa trade results in net illicit capital outflow for about 44% of countries in Africa. The results from panel data regressions indicate that tax evasion is one of the major factors behind misinvoicing in China-Africa trade. In addition, corruption control is found to reduce export underinvoicing, while political stability reduces both export overinvoicing and import overinvoicing. Export misinvoicing increases with the presence of natural resources in the exporting country. Other factors associated with trade misinvoicing in China-Africa trade include openness to trade, current account deficit, and real exchange rate. The study suggests ways to reduce trade misinvoicing in China-Africa trade.

过去几十年来,非法资金流动一直是一个备受关注的问题,因为它们对非洲的经济发展构成了挑战。非法资金流动破坏了非洲经济的生产力和增长,因为非洲国家失去了外汇和税收。各国失去了发展计划所需的财政资源,从而影响了社会服务的提供,延缓了减贫进程。为了有效打击非法资金流动,必须研究其决定因素。本研究旨在通过 1990-2019 年间的贸易虚开发票机制,研究中非贸易中非法资本流动的决定因素。本研究使用国际货币基金组织的贸易统计方向(DOTS)数据库来估算贸易虚开发票的情况。利用镜像贸易数据进行的估算表明,非洲对中国的出口和中国对非洲的进口主要都开错了发票。净效应表明,中非贸易中的虚开发票导致约 44%的非洲国家出现非法资本净流出。面板数据回归结果表明,逃税是中非贸易开错发票背后的主要因素之一。此外,腐败控制可减少出口发票开具不足,而政治稳定可减少出口发票开具过多和进口发票开具过多。出口国自然资源越丰富,出口虚开发票越多。中非贸易中与贸易虚开发票相关的其他因素包括贸易开放度、经常账户赤字和实际汇率。本研究提出了减少中非贸易中贸易虚开发票的方法。
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引用次数: 0
Does foreign direct investment promote access to basic services? The case of drinking water in Africa 外国直接投资是否促进了基本服务的获取?非洲饮用水案例
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-21 DOI: 10.1111/1467-8268.12743
Armand Totouom, Joseph P. Ngameni, Rosine F. Poumeni

Addressing the challenge of limited access to drinking water requires a comprehensive understanding of its underlying causes. This study aims to evaluate the effect of foreign direct investment (FDI) on access to basic services in Africa, focusing specifically on people's access to drinking water. Utilizing data from a panel of 51 countries spanning the period 2000–2020, we employed a two-step system generalized method of moments to estimate dynamic econometric models. Our analysis reveals a positive correlation between FDI inflows and improved access to drinking water. A one-percentage point increase in FDI inflows leads to a 0.026 percentage point rise in the proportion of people with access to drinking water. Notably, the effects vary between urban and rural areas, with marginal effects of 0.022 and 0.160, respectively. Furthermore, our findings indicate an inverse U-shaped relationship between FDI and access to drinking water in Africa, signifying that while access to drinking water improves with increasing FDI, the rate of improvement diminishes. The study recommends the judicious utilization of tax revenues from multinational enterprises to fund basic service infrastructures and advocates for measures aimed at attracting additional FDIs.

要应对饮用水获取受限的挑战,就必须全面了解其根本原因。本研究旨在评估外国直接投资(FDI)对非洲基本服务获取的影响,特别关注人们获取饮用水的情况。我们利用 2000-2020 年期间 51 个国家的面板数据,采用两步系统广义矩法对动态计量经济学模型进行了估计。我们的分析表明,外国直接投资流入与改善饮用水获取之间存在正相关关系。外国直接投资流入每增加一个百分点,可获得饮用水的人口比例就会增加 0.026 个百分点。值得注意的是,城市和农村地区的影响有所不同,边际效应分别为 0.022 和 0.160。此外,我们的研究结果表明,在非洲,外国直接投资与获得饮用水之间呈反 U 型关系,这表明虽然获得饮用水的情况随着外国直接投资的增加而改善,但改善的速度却在减慢。本研究建议明智地利用跨国企业的税收为基本服务基础设施提供资金,并倡导采取旨在吸引更多外国直接投资的措施。
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引用次数: 0
Educational assortative mating in the Cameroon marriage market: Role of marriage timing 喀麦隆婚姻市场中的教育同配:结婚时间的作用
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-20 DOI: 10.1111/1467-8268.12744
Fiennasah A. Akem, Ebenezer L. Wirba, Honore Oumbe Tekam

With the increasing education of women in developing countries, educational assortative mating has become a significant aspect in the marriage market, with educational assortative mating patterns likely to be dependent on marriage timing. Using pooled data from three recent waves of the Cameroon Demographic and Health Surveys, the paper investigates the effect of marriage timing on educational assortative mating patterns in Cameroon. To achieve the objective, the study employed the Cox proportional hazard model and a control function version of multinomial Probit. Results show that delaying marriage is expected to decrease the likelihood of women engaging in low educationally homogamous marriages while increasing the probability of women entering high educationally homogamous and hypogamous marriages. Findings further depicted that over the period 2004–2018, the likelihood of women engaging in low educationally homogamous marriages decreased meanwhile the likelihood of women considering high educationally homogamous marriages and hypogamous marriages increased. The implications of these findings are in tandem with the wisdom that, programs encouraging the girl child to delay early marriages and stay longer in school can help women engage in high educationally homogamous marriages, empower women and thus improves their socioeconomic status.

随着发展中国家妇女受教育程度的不断提高,教育同类交配已成为婚姻市场的一个重要方面,而教育同类交配模式很可能取决于结婚时机。本文利用喀麦隆最近三次人口与健康调查的汇总数据,研究了结婚时间对喀麦隆教育同配模式的影响。为实现这一目标,研究采用了 Cox 比例危险模型和多项式 Probit 的控制函数版本。结果显示,推迟结婚预计会降低妇女缔结低学历同配婚姻的可能性,同时增加妇女缔结高学历同配婚姻和低学历婚姻的可能性。研究结果进一步表明,在 2004-2018 年期间,妇女缔结低学历同性婚姻的可能性降低了,而考虑缔结高学历同性婚姻和低学历婚姻的可能性增加了。这些研究结果的意义与以下观点不谋而合:鼓励女童推迟早婚和延长在校学习时间的计划可以帮助妇女缔结高学历同性婚姻,增强妇女权能,从而提高她们的社会经济地位。
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引用次数: 0
A DSGE model approach to examining the impact of the Russian–Ukrainian War and oil shocks on the Moroccan economy 用 DSGE 模型方法研究俄乌战争和石油冲击对摩洛哥经济的影响
IF 3.1 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-13 DOI: 10.1111/1467-8268.12741
Abdelhamid Moustabchir, Hicham Ouakil, Hicham El Ouazzani, Houda Lechheb

This study explores the impact of oil shocks on the Moroccan economy using a dynamic stochastic general equilibrium (DSGE) model. The DSGE simulations reveal that these shocks, exacerbated by the war in Ukraine, led to a contraction in the output gap, consumption, investment, and savings, as well as increased inflation. These results highlight the vulnerability of the Moroccan economy to external shocks, particularly those linked to energy prices. They underline the need for Morocco to diversify its energy sources and reduce its dependence on oil imports. Furthermore, our results suggest that economic policies should focus on mitigating the effects of these shocks. Future research could seek to refine this model by incorporating other factors likely to influence the Moroccan economy, such as changes in global demand or specific government policies.

本研究利用动态随机一般均衡(DSGE)模型探讨了石油冲击对摩洛哥经济的影响。DSGE 模拟显示,这些冲击因乌克兰战争而加剧,导致产出缺口、消费、投资和储蓄收缩,通货膨胀加剧。这些结果凸显了摩洛哥经济对外部冲击的脆弱性,尤其是与能源价格相关的冲击。这些结果突出表明,摩洛哥需要实现能源多样化,减少对石油进口的依赖。此外,我们的研究结果表明,经济政策应侧重于减轻这些冲击的影响。未来的研究可以通过纳入可能影响摩洛哥经济的其他因素,如全球需求的变化或具体的政府政策,来完善这一模型。
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引用次数: 0
Issue Information - Author Guidelines 发行信息 - 作者指南
IF 2.9 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-11 DOI: 10.1111/1467-8268.12687
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引用次数: 0
Does institutional quality moderate the human capital–inequality dynamics? Comparative evidence from LAC and SSA countries 制度质量是否能缓和人力资本--不平等动态?拉丁美洲和加勒比及撒哈拉以南非洲国家的比较证据
IF 2.9 2区 经济学 Q1 DEVELOPMENT STUDIES Pub Date : 2024-03-05 DOI: 10.1111/1467-8268.12740
Bosede Ngozi Adeleye

Aligning with Sustainable Development Goal 10, this study probes whether quality institutions matter in the drive towards reducing income inequality through human capital. An unbalanced panel data on the Gini index (measure of income inequality), human capital index and institutional quality index drawn across 83 Latin America and sub-Saharan African (SSA) countries from 2010 to 2019 is used. For the most part, the consensus is that the interaction of human capital and quality institutions significantly reduces income inequality. For context, inequality reduces by −7.810 and −21.30 points for the full and SSA samples. Other findings reveal that the interaction effect is consistently negative at upper quantiles. Evidence from the margin plots reveals that the effect of human capital on inequality improves as institutional quality is strengthened. The downward trend of the plot within the 95% confidence interval shows that institutional quality enhances the impact of human capital on income inequality for the full sample and in SSA. This is a novel contribution to the literature as it suggests that quality institutions matter in the drive towards reducing the menace of income inequality. Policy recommendations are discussed.

为与可持续发展目标 10 保持一致,本研究探讨了优质机构在通过人力资本减少收入不平等的过程中是否重要。研究使用了 2010 年至 2019 年 83 个拉丁美洲和撒哈拉以南非洲国家的基尼指数(衡量收入不平等的指标)、人力资本指数和机构质量指数的非平衡面板数据。大部分共识是,人力资本和优质机构的相互作用可显著减少收入不平等。具体而言,全部样本和撒哈拉以南非洲样本的不平等分别减少了-7.810 点和-21.30 点。其他研究结果表明,在高位数组中,互动效应始终为负。边际图的证据显示,人力资本对不平等的影响随着制度质量的提高而改善。在 95% 的置信区间内,边际图的下降趋势表明,在全部样本和撒哈拉以南非洲地区,制度质量增强了人力资本对收入不平等的影响。这是对文献的一个新贡献,因为它表明,高质量的制度对减少收入不平等的威胁至关重要。本文还讨论了政策建议。
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引用次数: 0
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African Development Review-Revue Africaine De Developpement
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