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The purpose of this paper is to examine the information spillover of sovereign rating changes on the market valuation of bank stocks in Africa.

First, the authors apply event study methodology to evaluate the stock market reaction of African bank stocks on the announcement of sovereign rating changes. Second, the cross sections of the abnormal returns are examined by multivariate regression analyses. Third, the findings are proved for robustness.

The authors investigate how 37 African banks react to 203 African sovereign rating announcements from the three leading credit rating agencies over the period 2010-2016 and find that negative announcements trigger the significant positive stock reactions of African banks, especially contributed by banks in the non-reviewed African countries. These unusual reactions can be explained by the low integration and the severe information asymmetry of African capital markets. The authors further locate the influencing factors of banks’ reactions and show that rating downgrades magnify the abnormal effects while the membership of the African Free Trade Zone mildens the stock market reactions.

Limitations are given by the limited sample size. There are only limited numbers of publicly listed African banks with sufficient trading data.

The paper argues for a critical dependency of African bank equity valuation in the case of sovereign debt rating changes in neighbor countries. This observation is important for the risk assessment of African banking assets.

The paper is the first to examine stock market reactions on sovereign rating announcements for the evaluation of capital market integration in Africa. It thereby underlines the usefulness of this simply to apply approach as an instrument for ongoing examining the progress in capital market development in emerging countries.

This study is a comparative analysis of the magnitude of economic growth as a key determinant of long-term foreign currency sovereign credit ratings in 30 countries in Africa, Europe, Asia and Latin America from 2010 to 2018.

The analysis applies the fixed effects (FE) and random effects (RE) panel least squares (PLS) models.

The authors find that the magnitude economic coefficients are marginally small for African countries compared to other developing countries in Asia, Europe and Latin America. Results of the probit and logit binary estimation models show positive coefficients for economic growth sub-factors for non-African countries (developing and developed) compared to negative coefficients for African countries.

These findings mean that, an increase in economic growth in Africa does not significantly increase the likelihood that sovereign credit ratings will be upgraded. This implies that there is lack of uniformity in the application of the economic growth determinant despite the claims of a consistent framework by rating agencies. Thus, macroeconomic factors are relatively less important in determining country's risk profile in Africa than in other developing and developed countries.

First, studies that investigate the accuracy of sovereign credit rating indicators and risk factors in Africa are rare. This study is a key literature at the time when the majority of African countries are exploring the window of sovereign bonds as an alternative funding model to the traditional concessionary borrowings from multilateral institutions. On the other hand, the persistent poor rating is driving the cost of sovereign bonds to unreasonably high levels, invariably threatening their hopes of diversifying funding options. Second, there is criticism that the rating assessments of the credit rating agencies are biased in favour of developed countries and there is a gap in literature on studies that explore the whether the credit rating agencies are biased against African countries. This paper thus explores the rationale behind the African Union Decision Assembly/AU/Dec.631 (XXVIII) adopted by the 28th Ordinary Session of the African Union held in Addis Ababa, Ethiopia in January 2017 (African Union, 2017), directing its specialized governance agency, the African Peer Review Mechanism (APRM), to provide support to its Member States in the field of international credit rating agencies. The Assembly of African Heads of State and Government highlight that African countries are facing the challenges of credit downgrades despite an average positive economic growth. Lastly, the paper makes contribution to the argument that the majority of African countries are unfairly rated by international credit rating agencies, raising a discussion of the possibility of establishing a Pan-African credit rating institution.

The purpose of this paper is to examine the impact of sovereign credit ratings on corporations in South Africa by assessing whether the sovereign rating assigned to South Africa by credit rating agencies acts as a ceiling/constraint for credit ratings assigned to corporations that operate within the country. The question of whether sovereign ratings are significant in determining corporate ratings was also explored.

To test the hypothesis regarding the rating of corporates relative to sovereigns, a longitudinal panel design was followed. The analysis employed fixed effects and generalized method of moments techniques.

The main findings are that sovereign ratings both act as a ceiling for corporate ratings and are important determinants of corporate ratings in South Africa. The findings however indicated that company specific variables (accounting variables) are not significant in explaining credit risk ratings assigned to corporates.

This study only looked at the rating activity done by Standard and Poor’s (S&P). A possible further study could explore the hypothesis tested in this research using data from multiple rating agencies and contrast the results across different agencies. Future studies could also look at crisis periods and how the transfer risk discussed in this paper manifests during the transfer period.

The results have implications for the borrowing costs incurred by corporates in South Africa when participating in the international debt market. The implication is that if the sovereign is poorly rated, the corporates may be limited in their ability to secure investor funding at competitive rates from the international financial markets. Thus, should South Africa be downgraded to non-investment grade by S&P, the implications may be that South African corporates on average may suffer the same fate.

Extant literature predominantly utilizes foreign currency ratings. To the extent that this study uses local currency ratings, it adds a new dimension in the body of related studies.

This paper aims to investigate the impact of sovereign rating and corporate governance on performance of Latin American companies between 2004 and 2018.

This study performed a multilevel regression with fixed and random coefficients for 823 companies and verified the impacts of country, firm and time levels on the performance variation. The study alternated return on assets and Tobin’ Q as dependent variables and measured governance using the following variables: board size, chief executive officer/chairman duality, CEO/board member duality, dummy for the chairman as a former CEO, audit committee, independence and expertise of the audit committee.

Latin American companies performed better when their respective countries have a better sovereign rating and when they adopt better board of directors and audit committee mechanisms. Sovereign rating assumes distinct roles depending on the presence or absence of governance variables. Rating and governance may be substitute mechanisms to protect investors.

To the best of the authors’ knowledge, this paper is the first to investigate the impacts of sovereign rating on firm performance in the Latin American scenario. The use of governance metrics – for example, the audit committee expertise and the dummy for chairman as a former CEO – is innovative in Latin American studies.

The importance of obtaining a sovereign credit rating from an agency is still underrated in Africa. Literature on the determinants of sovereign credit ratings in Africa is scarce. The purpose of this research is to determine what the determinants are for sovereign credit ratings in Africa and whether these determinants differ between regions and income groups.

A sample of 19 African countries' determinants of sovereign credit ratings are compared between 2007 and 2014 using a panel-ordered probit approach.

The findings indicated that the determinants of sovereign credit ratings differ between African regions and income groups. The developmental indicators were the most significant determinants across all income groups and regions. The results affirm that the identified determinants in the literature are not as applicable to African sovereigns, and that developmental variables and different income groups and regions are important determinants to consider for sovereign credit ratings in Africa.

The results affirm that the identified determinants in the literature are not as applicable to African sovereigns, and that developmental variables and different income groups and regions are important determinants to consider for sovereign credit ratings in Africa. Rating agencies follow the same rating assignment process for developed and developing countries, which means investors will have to supplement the allocated credit rating with additional information. Africa can attract more investment if African countries obtain formal, accurate sovereign credit ratings, which take the characteristics of the continent into consideration.

The importance of sovereign bond as a source of financing revenue deficit, benchmarking for corporate bonds and debt management in Africa, calls for continual monitoring of its volatility dynamics. This study evaluates the nature of sovereign bond volatility interaction between African countries using bivariate BEKK-GARCH (1, 1) model. Based on a sample of eight African countries, the results show evidence of unidirectional volatility spillover from Morocco sovereign bond to Egypt sovereign bond. Next, the results show absence of volatility interaction between Ghana and Nigeria sovereign bonds. The results further show the existence of bidirectional volatility transmission between Uganda and Kenya. Finally, the results indicate evidence of bidirectional volatility interaction between Botswana and South Africa. Overall, the results show existence of full interaction between Uganda–Kenya and Botswana–South Africa sovereign bond returns, partial interaction between Egypt and Morocco sovereign bond returns and no interaction between Ghana and Nigeria sovereign bonds markets. Thus, these results provide valuable implications for sovereign and corporate credit risk management, as well as strategy for monitoring and minimising negative effect of sovereign bond volatility spillover in Africa.

The purpose of this paper is to examine whether new sovereign credit rating (SCR) changes are valuable, and relevant information is provided to bond and equity markets in 30 African countries that received an SCR during the period 1994–2014.

This study applies a combination of GARCH models and event study techniques.

This study shows that the financial markets do not significantly react to SCR announcements, possibly because these African markets are already perceived to be risky.

At last, a significant portion of Africa’s sovereign debt is held by foreign investors (Arslanalp and Tsuda, 2014) who commonly preclude asset managers from investing in low SCR grades. Thus, an unfavorable SCR announcement could lead to a withdrawal of these funds, which could significantly alter both fiscal and monetary policies in the economy.

SCRs is immaterial to investors holding African securities.

Although financial markets are weakly responsive to SCR announcements, they appear to be informationally important in the operation of stocks and bond markets in Africa. Therefore, governments should appreciate the long-term information exchange between investors and borrowers, and the consequential nature of credit ratings in Africa’s nascent financial markets in order to proactively manage the risks of negative ratings.

Studies on credit rating effects on Africa markets are rare.

Since sovereign ratings provided by credit rating agencies (CRAs) are a key determinant of the interest rates a country faces in the international financial market and once sovereign ratings may have a constraining impact on the ratings assigned to domestic banks or companies, some studies have focused on identifying the determinants of sovereign credit risk assessments provided by CRAs. In particular, this study estimates the effect of fiscal credibility on sovereign risk using four different comprehensive credit rating (CCR) measures obtained from CRAs' announcements and two different fiscal credibility indicators.

We build comprehensive credit rating (CCR) measures to capture sovereign risk. These measures are calculated using sovereign ratings, the rating outlooks and credit watches issued by the three main credit rating agencies (S&P, Moody's and Fitch) for long-term foreign-currency Brazilian bonds. Based on monthly data from 2003 to 2018, we use different econometric estimation techniques in order to provide robust results.

The results indicate that fiscal credibility exerts both short- and long-run effects on sovereign risk perception, and macroeconomic fundamentals are important long-run determinants.

Since fiscal credibility reflects the government's ability to maintain budgetary balance and sustainable public debt, the government should keep its commitment to responsible fiscal policies so as not to deteriorate expectations formed by financial market experts about the fiscal scenario and, thus, to achieve better credit assessments issued by CRAs with respect to sovereign debt bonds. Sovereign credit rating assessment is a voluntary practice. It is up to the country whether they want to apply for a rating assessment or not. Thus, without a sovereign rating, one must find an alternative to measure the sovereign risk of a country. In this sense, an important practical implication that this study provides is that fiscal credibility can be used as a leading indicator of sovereign risk perceptions obtained from CRAs or even as a proxy for sovereign risk.

This paper is the first to verify how important the expectations of financial market experts in relation to the fiscal effort required to keep public debt at a sustainable level (i.e. fiscal credibility) are to sovereign risk perception of credit rating agencies. In this sense, the study is the first to address this relation, and thus it contributes to the literature that seeks to understand the determinants of sovereign ratings in emerging countries.

In October 2020, Zambia failed to make a $42.5 million interest payment on $1 billion in Eurobonds maturing in 2024, becoming the first African country to default on its debt obligations in the aftermath of COVID-19. Zambia's default highlights the fragmented nature of governance in sovereign debt markets. The Zambian default also underscores the continuing impact of colonial hangover in former colonies in Africa. Fragmented governance and colonial overhang create incentives for both debtors and creditors that contribute to cycles of sovereign debt. These cycles of debt pose a particular hazard to residents within countries that issue such debt. In African contexts, this has led to flows of funds for debt repayment that may significantly jeopardize the well-being of people who are already poor. Zambia's default also reflects the increasing need of African countries to navigate among different external actors, particularly China, which has given loans throughout Africa for varied projects, including infrastructure lending as part of its Belt and Road Initiative. The Zambian default draws attention to the significant amount of Eurobond debt African countries have incurred in recent years and the burdens that such debt may impose. The circumstances of Zambia's default, as well as recent disputes about external debt in Mozambique, reflect continuing issues about transparency and public scrutiny of sovereign debt transactions and the broader societal impact of debt internally within African countries and in relations between African countries and varied external powers.

Despite being a viable source of funds, African sovereign bond markets are relatively underexplored. The empirical literature fails to consider the impact of exclusively macroeconomic factors and the volatile contexts in which African markets operate. The purpose of this paper is to fill the vacuum by proposing a context-sensitive theoretical framework. The study targets, specifically, macroeconomic factors and assesses the extent to which they affect bond market development.

Using panel data on sovereign bond markets from 26 African economies, the study extends previous methodologies used in similar studies by accounting for downside risk in a generalized method of moments (GMM) framework and employing tighter robustness measures.

This study finds that inflation, domestic debt, external debt, GDP at PPP, fiscal balance and exports are important macroeconomic drivers of sovereign bond market development in African emerging economies.

While GMM estimation is beneficial in the presence of endogeneity between the dependent variables that are instrumented with lagged independent variables, it guarantees consistency but, not unbiased estimations.

Market-oriented government funding with well-defined debt management strategies must be implemented to support the development of sovereign bond markets. External debt must be set at a sustainable level, and government should be dedicated to the confirmation of this. Furthermore, inflation rates must be kept low and stable.

If policymakers are to take this study seriously, bond markets may begin to be viable sources of funds for African emerging economies.

This study introduces a methodology for measuring bond market development that considers the systemic volatility in emerging markets and proposes a theoretical framework for African emerging economies. In addition, the authors identify a new macroeconomic determinant of bond market development in the region.