1. Introduction
Capital structure, which involves finding the right combination of debt and equity, is crucial for businesses, as it significantly affects performance and long-term viability (
Boshnak 2023;
Makarla and Degefa 2019). Choosing the right capital financing and measuring financial performance are two of the most important responsibilities of finance managers (
Mathur et al. 2023). However, the question of what makes for an optimal structure of the firm’s capital is a contentious issue in corporate finance (
Panda and Nanda 2020;
Assfaw 2020). Scholars and professionals have different views on how capital structure affects organizations’ financial performance. The disagreement began with Modigliani and Miller’s study in 1958, where they first advocated that financial structure does not affect corporate value under perfectly competitive markets (
Mazanec 2023). However, their later work in 1963 indicated that growing debt levels could improve a company’s value, suggesting that an ideal capital structure might be primarily or wholly composed of debt (
Hundal et al. 2020). Hence, the field of finance emphasize the importance of recognizing these aspects and underscores the need for sufficient capital to guarantee operational efficiency (
Xu et al. 2021).
Given its importance to the global economies, the banking industry places a premium on determining the optimal capital structure (
Berhe 2019). The financial policy that banks choose greatly impacts their ability to meet shareholder expectations (
Pervin and Nowreen 2018;
Chechet and Olayiwola 2014). When banks wisely choose their financial structure, they may take advantage of growth possibilities, thrive, and distribute earnings to shareholders fairly (
Ajayi et al. 2019). Conversely, when banks have inadequate capital combinations, they either fail or function poorly, which, in turn, causes economic slowdowns (
Ongore and Kusa 2013).
Developing nations’ banking businesses are particularly vulnerable to capital structure decisions because of their low equity-to-total asset ratios and stringent regulations (
Sivalingam and Kengatharan 2018). Ethiopia’s banking industry is crucial for the nation’s economy, contributing more than 4.2% to the GDP and representing over 95% of the capital (
Muhammed et al. 2023;
Tekatel 2019;
Abate and Kaur 2023). Any disruption or failure in this sector would greatly impact the country’s overall economic development. Furthermore, the Ethiopian private banking sector faces significant challenges, including a limited selection of financial services, costly branch expansions, technological deficiencies, a significant reliance on manual processes, and a notable concentration on urban markets (
Tekatel 2019). As a result, placing complete reliance on traditional models to maintain competitiveness in a highly competitive industry is insufficient. Given the gravity of this issue, it is imperative to ascertain the factors that influence financial performance, as this contributes to the sustained prosperity of an organization. Hence, the purpose of this study is to investigate the correlation between the capital structure and the performance of private commercial banks in Ethiopia. Anticipatedly, the findings of this research will yield substantial insights that can support financial institutions in adapting to the perpetually evolving business landscape, thereby ensuring their sustained prosperity as organizations. In addition, by enlightening policymakers about regulatory frameworks for banks and assisting banking managers in the development of efficient capital financing strategies in the Ethiopian commercial banking sector, this research is anticipated to contribute to the body of knowledge concerning the correlation between capital structure and financial performance.
Numerous empirical studies have yielded inconsistent results. A positive association between capital structure and firm performance was found by
Abdullah and Tursoy (
2021) in Germany and
Adesina et al. (
2015) in Nigeria. While empirical research conducted in Vietnam by
Nguyen (
2020), in Indonesia by
Ramli et al. (
2019), and in Malaysia by
Le and Phan (
2017) has provided evidence of negative connections. This highlights the significance of considering country-specific studies. In Ethiopia, the following studies have been conducted by
Teshome et al. (
2018),
Kibrom (
2010),
Berhe (
2019),
Adato (
2022),
Bezabeh and Desta (
2014),
Assfaw (
2020),
Birru (
2016),
Makarla and Degefa (
2019), and
Gofe and Asfaw (
2023). However, none of the aforementioned studies takes into account bank-specific factors, such as the ratio of total deposit-to-total asset and the total asset to equity. Furthermore, certain research initiatives yield conflicting outcomes. Generally, the presence of contradicting outcomes reported on a global scale, as well as within the context of Ethiopia, along with the exclusion of crucial bank-specific factors in previous studies, highlights the necessity for further inquiry. This study aims to fill these existing gaps by examining the influence of several components of capital structure, such as loan-to-deposit, asset-to-total equity, total deposit-to-total asset, capital adequacy, and asset growth ratios, on the financial performance of commercial banks in Ethiopia. The projected results possess the capacity to enhance decision-making within the banking industry.
2. Review of Literature
According to
Sike et al. (
2022) and
Mohammad and Bujang (
2020), the concept of “capital structure” pertains to the composition of debt and equity employed by a company to fund its activities. Several theories have been established to comprehend the correlation between capital structure choices and the value of a company. The Modigliani–Miller (MM) theory, which was first proposed in 1958, posited that in a market characterized by perfect competition, the valuation of a corporation is not influenced by its capital structure (
Dabi et al. 2023). Nevertheless, the revisions put out by (
Modigliani and Miller 1963) recognized the potential of debt to enhance value and advocated for predominantly using debt-based financing. Alternative viewpoints on the equilibrium between the advantages and disadvantages of debt financing are provided by additional theories, such as the static trade-off theory and the Pecking Order theory (
Segun et al. 2021). Moreover, the theory of agency costs provides insight into the impact of managerial incentives on decisions regarding capital structure, with a particular focus on the significance of debt in aligning management goals with the value of shareholders (
Rajamani 2021). Nevertheless, it is imperative to acknowledge that an abundance of debt can intensify agency issues, presenting potential hazards to the long-term investments of shareholders (
Ahmed et al. 2023b). Therefore, it is crucial to have efficient management to attain a harmonious balance between the benefits of debt, management motivations, and shareholder worth. It is crucial to acknowledge that although these theories offer significant perspectives, the ideal capital structure may differ based on the particular circumstances and goals of each company. These theories jointly propose that the financial performance of a corporation is substantially impacted by its decisions about capital structure.
Numerous empirical studies have reported a substantial relationship between capital structure and financial performance. According to
Xu et al. (
2021), their study investigated the correlation between debt ratios and financial performance in China’s agricultural industry. The study’s results revealed the adverse effects of short-term debt on economic profitability.
Abdullah and Tursoy (
2021) conducted a study to analyze the financial environment in Germany following the adoption of International Financial Reporting Standards (IFRS). It was found that non-financial entities exhibited a significant reliance on debt financing, thereby highlighting the pervasive influence of capital structure on financial performance. The correlation between capital composition, ownership structures, and financial performance in Latin American corporations was further investigated by
Gallegos Mardones and Cuneo (
2020). The study conducted by
Ahmed and Bhuyan (
2020) examined the relationship between capital structure and firm performance within the Australian service sector. The findings revealed that long-term debt is the predominant form of debt utilized by service sector companies. However, a study conducted by
Rajamani (
2021) in India,
Nguyen and Nguyen (
2020) in Vietnam, and
Ahmed et al. (
2023a) in Iran have revealed the adverse impact of debt on the financial performance of these countries. The heterogeneous effects of capital structure on profitability have been demonstrated in studies conducted by
Anozie et al. (
2023) on Nigerian oil and gas companies and
Boshnak (
2023) on Saudi Arabian companies.
Numerous academic inquiries have been conducted in Ethiopia to elucidate the factors that influence financial performance. In their comprehensive study,
Teshome et al. (
2018) conducted a thorough analysis spanning the years 2007 to 2016. The researchers examined various factors, such as operational cost efficiency, non-performing loans, credit interest income, leverage, and credit loss provision. The researchers demonstrated a positive correlation between the size of the bank and the capital adequacy ratio and credit interest income. Conversely, other variables displayed a negative correlation.
Shibru (
2012) conducted a comprehensive examination of the determinants that impacted the capital structure of eight commercial banks in Ethiopia during the period from 2000 to 2011. The research focused on the dimensions of size, tangibility, liquidity, and profitability.
Makarla and Degefa (
2019) employed a fixed-effect regression model to examine the factors influencing the capital structure of commercial banks in Ethiopia from 2006 to 2015. In addition, researchers
Assfaw (
2020),
Adato (
2022),
Birru (
2016), and
Berhe (
2019) have made significant contributions to the field by examining the impact of various factors, including earnings volatility, bank size, taxes, profitability, asset tangibility, and leverage, on the capital structure of private banks in Ethiopia. Despite the vast amount of research focused on this subject, there are still inconsistencies present in the current literature. To provide an example,
Adato (
2022) observed a positive association between the loan-to-deposit ratio and banking performance, while
Birru (
2016) observed a negative correlation. Through this finding,
Kibrom (
2010) identified a positive association between the increase in assets and the Return on Assets, while
Shibru (
2012) concluded that there is no observable impact of asset growth.
Despite the existence of numerous scholarly investigations on the impact of capital structure on firms’ performance on a global scale, it is important to acknowledge that previous studies in this field have certain limitations. Firstly, these studies frequently yield contradictory findings; even though the inconsistencies may arise due to variations in sample size, methodology, or the specific context being studied, it still suggests the need for additional research. Furthermore, numerous current studies concentrate exclusively on particular factors that influence capital structure, disregarding the wider dynamics occurring within the banking industry. This research seeks to gain a comprehensive understanding of the correlation between capital structure and financial performance in Ethiopia’s commercial banking sector by analyzing variables such as the loan-to-deposit ratio, total deposit-to-total asset ratio, total asset-to-total equity ratio, capital adequacy, and asset growth ratios. Furthermore, this study expands on prior research by specifically examining the Ethiopian context, thus enhancing our comprehension of capital structure dynamics in developing economies.
After a thorough review of the literature, the following hypotheses were proposed:
H1: The loan-to-deposit ratio positively and significantly influences financial performance.
The loan-to-deposit (LTD) ratio indicates the proportion of a bank’s deposits that are being utilized to extend loans to borrowers, demonstrating the balance between deposit attraction and lending capability, which are important revenue streams for most banks (
Suroso 2022). A well-managed LTD ratio provides enough liquidity to meet deposit withdrawals while also earning profits from lending activities. Despite conflicting conclusions, previous studies such as
Birru (
2016),
Abera (
2020),
Fathina (
2022), and
Ayalew (
2021) used this ratio as a key proxy for assessing capital structure. Hence, based on the idea that a higher loan-to-deposit ratio leads to more interest income and better financial performance, this study predicted a positive relationship between the LTD ratio and banks’ business performance, as shown by their Return on Assets (ROA).
H2: The deposit-to-asset ratio positively and significantly influences financial performance.
The deposit-to-asset ratio (TDTA) measures the extent to which a bank depends on customer deposits to fund its assets (
Ahmed and Teru 2020). Banks experience advantages when their total deposits-to-total assets (TDTA) ratios increase since it allows them to improve stability and liquidity (
Dinh and Pham 2020). This ratio highlights the significance of using deposits as a source of funding and how it affects decisions regarding profitability. Thus, this study hypothesizes that an increase in the TDTA ratio positively affects Return on Assets. This ratio represents a novel approach that has not been previously explored by researchers.
H3: The capital adequacy ratio has a positive and significant impact on financial performance.
The capital adequacy ratio represents a bank’s ability to cover risks and meet regulatory requirements (
Sukmadewi 2020). This ratio measures the sufficiency of a bank’s capital relative to its risk-weighted assets, providing valuable insights into its ability to withstand potential losses and maintain solvency (
Sari and Sulistyo 2018). Prior studies (
Fathina 2022;
Siltan 2022;
Alnajjar and Othman 2021) have used the capital adequacy ratio as a proxy for assessing capital structure. Hence, this study also suggests that there is a positive relationship between the capital adequacy ratio (CAR), which measures a bank’s capital structure, and its financial performance. It is assumed that banks with sufficient capitalization are expected to perform better than average, leading to improved financial performance, as shown by their Return on Assets (ROA).
H4: The asset-to-equity ratio has a negative and significant influence on financial performance.
The asset-to-total equity ratio indicates the percentage of a company’s total assets that are funded by equity (
Oriskóová and Pakšiová 2018). The corporation relies more on debt than equity with a higher ATER. The stakes are higher if the company fails to pay its loan obligations, which could increase macroeconomic instability and corporate insolvency (
Calomiris 2013). Thus, this analysis suggests that a high asset-to-equity ratio hurts financial success. This study uses the inverse ATER to examine the counteractive effect, unlike prior studies that used equity-to-asset ratios. While both ratios illuminate a company’s capital structure and financial risk, the asset-to-equity ratio highlights leverage, while the equity-to-asset ratio focuses on equity financing (
Calomiris 2013). This study examines the ATER to better understand leverage, equity financing, and financial performance, expanding the field’s scholarship.
H5: Asset growth ratio has a positive and significant influence on financial performance.
The asset growth ratio shows the rate at which a company’s assets have increased over a specific period (
Kibrom 2010). Capital structure debates over company expansion hinge on this dynamic.
Harris and Raviv (
1991) and
Titman and Wessels (
1988) suggest a positive correlation between firm growth and capital structure, but the trade-off theory suggests that growth opportunities signal firm success by strengthening resilience against financial distress and creating financial market access (
Anarfo 2015). Prior studies by
Taddese (
2021),
Shibru (
2012),
Kebede (
2011), and
Anarfo (
2015) used the Asset Growth Ratio Ratio as the proxy to assess the capital structure. Studies have shown a favorable impact of asset expansion on profitability (
Hestinoviana and Handayani 2013;
Kibrom 2010). Similar to these findings, this study hypothesizes a favorable relationship between asset growth and financial performance.
Figure 1 depicts the conceptual framework of the investigation.
5. Conclusions and Recommendations
The findings of this research offer valuable insights for professionals, policymakers, and scholars by shedding light on the influence of capital structure on the financial performance of private commercial banks in Ethiopia. The loan deposit ratio (LDR) has been identified as a significant determinant of Return on Assets (ROA), indicating the efficacy of utilizing deposited money for lending purposes. This phenomenon may occur because banks generate higher profits from the interest earned on customers’ deposits compared to the interest received by depositors. This demonstrates that the allocated funds were effectively utilized for lending purposes. A positive loan-to-deposit ratio (LDR) indicates that loans are being disbursed using deposit resources, potentially reducing reliance on external funding sources. This demonstrates the implementation of responsible risk management strategies.
Similarly, the significant positive correlation observed between the total deposit-to-total asset ratio (DTAR) and the Return on Assets (ROA) indicates that banks possess an adequate amount of liquid assets to satisfy their deposit obligations. A strong deposit base additionally fosters consumer confidence and trust, thereby encouraging customer retention and regulatory adherence. In general, the robust correlation between DTAR and ROA underscores the criticality of deposit mobilization for the financial stability and profitability of banks, thereby emphasizing the importance of maintaining a substantial deposit base.
On the other hand, the statistical analysis reveals that the Asset Total Equity Ratio (ATER) does not exhibit a significant association with Return on Assets (ROA). This implies that the direct impact of ATER on profitability is limited, as the influence of risk management approaches or operational effectiveness outweighs its relevance. This highlights the intricate nature of banking performance and underscores the significance of factors beyond ATER. Similarly, the capital adequacy ratio (CAR) is crucial in ensuring the stability of banks and adherence to regulatory requirements, while lacking statistical significance in our study. Maintaining adequate capital reserves is crucial in mitigating financial risk, despite its indirect impact on Return on Assets (ROA).
In addition, the existence of a negative association between financial performance and the Growth of Assets (GA) suggests that financial institutions can have difficulties related to the swift increase in their assets. An inverse relationship between the increase in assets and financial performance indicates that simultaneous problems, such as declining asset quality or inadequate liquidity, may outweigh the advantages of expansion. The observed inverse relationship underscores the significance of implementing cautious growth plans that prioritize the quality of assets over their number. This highlights the importance for financial institutions to thoroughly evaluate the influence of asset expansion on their overall stability, taking into account variables such as operational effectiveness, capital adequacy, and risk mitigation strategies. Moreover, this study makes a valuable contribution to the current body of knowledge by conducting a thorough analysis of the factors that influence the financial performance of commercial banks in Ethiopia.
Based on the results of this investigation, Ethiopian commercial banks are recommended to focus on certain areas for improved financial performance. Firstly, it is advised that banks concentrate on increasing their loan-to-deposit ratio (LDR), as this has a positive influence. This can be achieved by effectively using deposited funds for lending purposes and generating more interest revenue from loans. Additionally, maintaining a strong deposit base is encouraged as a higher total deposit-to-total asset ratio (DTAR) leads to better financial performance due to cost advantages compared to external borrowing methods. Furthermore, attention should be directed towards operational efficiency and risk management strategies since changes in Return on Assets (ROA) through fluctuations in the ratio of Asset to Total Equity (ATER) are difficult to predict. While the capital adequacy ratio (CAR) is important for stability and compliance with regulations, its direct impact on ROA was found to be not significant in this study’s results. However, it remains crucial for overall bank health and resilience against potential risks. Lastly, careful management of asset growth is advised as rapid expansion can have negative effects on ROA according to this study’s findings.
This study’s shortcomings stem from its exclusion of macroeconomic elements such as inflation, GDP, political stability, government restrictions, and other variables specific to banks. It is recommended that future scholars further investigate this study by integrating supplementary macroeconomic and bank-specific variables that were not encompassed in the present analysis. Additionally, it would be advantageous to examine the wider ramifications of capital composition in the banking sector and other industries. Furthermore, the use of comparative analysis with other nations has the potential to yield valuable insights regarding the distinct aspects that impact banking performance within varying contexts.