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This study investigated stock market reaction and the effect of the implementation of Basel II and Basel III on stock returns of South African banks. In achieving this aim, this study focused on daily and annual data of six commercial banks from 3rd January 2004 to 31st December 2022. The event study methodology was employed to identify abnormal returns around the specified event dates. The effect of the changes in Basel capital requirements on stock returns was not uniform across the four events. The market reacted favourably to the implementation of the Basel II requirements in the country. There was a significantly negative market reaction to the subsequent full implementation of Basel III official. Finally, higher Basel capital requirements (CAR) was associated with lower bank stock returns. The findings implied that bank regulators increase capital to strengthen the banking system but constrain the maximisation of shareholders' values. [ABSTRACT FROM AUTHOR]

This study investigated the stock market reaction and the effect of the implementation of Basel II and Basel III on the stock returns of South African banks. In achieving this aim, this study focused on daily and annual data of six commercial banks from 3rd January 2004 to 31st December 2022. The event study methodology was employed to identify abnormal returns around the specified event dates. The effect of the changes in Basel capital requirements on stock returns was not uniform across the four events. The market reacted favourably to the implementation of the Basel II requirements in the country. There was a significantly negative market reaction to the subsequent full implementation of Basel III official. Finally, higher Basel capital requirements (CAR) was associated with lower bank stock returns. The findings implied that bank regulators increase capital to strengthen the banking system but constrain the maximisation of shareholders’ values.

Capital adequacy is considered an essential determinant banks' performance. Banks in Africa have revenue growth opportunities, but fragility and vulnerability to bank failures arising from capital inadequacy and non-performing loans affect their performances. The Basel Committee aims to introduce higher capital requirements is to strengthen the resilience of the banking system; however, the implementation of higher Basel capital requirements may affect the performance of banks. This study examines the potential impact of Basel IV capital requirements (CAR) on the performance of commercial banks from selected African countries. To achieve the set objective, the study simulated Basel IV CAR to create sample representative bank balance sheets using historical data from 2000 to 2018 because Basel IV CAR has not commenced. The study developed a sample-representative of Basel IV CAR and employed static and dynamic panel regression analyses as the estimation techniques. The results suggest that Basel IV CAR portends short-term negative impacts on bank performance while the long-term impact on bank performance is favorable. [ABSTRACT FROM AUTHOR]

The study examines the nexus between Basel capital requirements, banking sector risk-taking, and profitability in Asian emerging markets by using dynamic panel GMM methodology. The findings of the study suggest that regulatory capital positively affects risk-taking which validates the "regulatory hypothesis." The findings also reveal that regulatory capital positively while risk negatively affects the profitability in the banking sector. The current study finds the bidirectional causality between the regulatory capital and risk-taking, implying that banks with higher capital ratios are expected to increase in risk-taking and vice versa. The findings also suggest that managerial ownership positively affects while foreign ownership negatively impacts risk-taking consistent with the agency theory of corporate governance. The study proposes that ownership structure has a significant influence on bank risk and profitability, however, the combined impact of regulatory capital through its interaction with the ownership structure is not proved to be significant. [ABSTRACT FROM AUTHOR]

Focusing on a panel sample of 41 commercial banks over the period of 2000-2018, this study examined the effect of capital adequacy on the resilience of commercial banks in Africa under changing Basel levels (II, III, and the proposed Basel IV). The study created sample representative banks for the proposed Basel IV and used two measures, namely Z-score and CAMELS, to capture bank resilience. Using the panel logistic regression and fixed effect model, we found that capital adequacy, liquidity, earnings management efficiency, and macroeconomic conditions are key determinants of the resilience of commercial banks in Africa. Additionally, Basel compliant banks tend to be less prone to macroeconomic factors. Based on the positive and significant impact of all Basel capital ratios on Zscore, the results suggest that a high level of capital requirements increases African banks' resilience, and banks with higher capital can absorb risk exposures.

Bank lending is a major source of income for a bank. Compliance with higher Basel capital requirements (CAR) portends serious implication for distribution of loan portfolio across different sectors. The objective of the study is to examine African banks’ responses to higher CAR in terms of portfolio shift. The study used descriptive statistics and ANOVA for panel data of African commercial banks that have implemented Basel II or III CAR for the period 2000 and 2018. Based on the results of our analysis, implementation of higher Basel CAR by African banks revealed four key findings. Firstly, our results suggest that higher Basel CAR particularly Basel III reduced total loans for South African banks. Secondly, African banks engage in portfolio shift with higher Basel levels. Thirdly, higher Basel capital increased banks' capital ratios in Africa, but some banks are still characterized by low equity. Fourthly, African banks reduce lending to high risk-weighted loans such as real estate and commercial loans except for South African banks which increased lending to commercial loans with higher Basel CAR. Lastly, this study proffers key insight into the lending behaviour of African banks with the implementation of higher Basel CAR.

This paper examines changes in bank capital and capital regulations since the global financial crisis, in the Europe and Central Asia region. It shows that banks in Europe and Central Asia are better capitalized, as measured by regulatory capital ratios, than they were prior to the crisis. However, the increase in simple equity ratios for the same banks has been smaller over the past 10 years. The increases in regulatory capital ratios have coincided with a reduction in the stringency of the definition of Tier 1 capital and reduction in risk-weights. We further analyze the relationship between bank capital and bank risk using individual bank data. We show that bank risk in Europe and Central Asia is more sensitive to changes in simple leverage ratios than changes in regulatory capital ratios, consistent with the notion that equity ratios only include high-quality capital and do not rely on internal risk models to compute risk-weights. Although there has been some effort to increase capital and liquidity requirements for institutions deemed systemically important, the region has been lagging in addressing the resolution of these institutions. In line with Demirguc-Kunt, Detragiache, and Merrouche (2013), our findings show the importance of the definition of bank capital to assure bank financial stability in Europe and Central Asia. [ABSTRACT FROM AUTHOR]

Using data on publicly traded banks in 61 countries, we examine how the institutional environment affects the relationship between bank capital and system-wide fragility. Consistent with prior studies, we find that bank capital is associated with a reduction in the systemic risk contribution of individual banks. This effect is more pronounced for banks located in countries with less efficient public and private monitoring of financial institutions and in countries with lower levels of information availability. Overall, our findings suggest that capital can act as a substitute for a weak institutional environment in reducing systemic risk. [ABSTRACT FROM AUTHOR]