Bank concentration,competition, and crises: First results

Motivated by public policy debates about bank consolidation and conflicting theoretical predictions about the relationship between bank concentration, bank competition and banking system fragility, this paper studies the impact of national bank concentration, bank regulations, and national institutions on the likelihood of a country suffering a systemic banking crisis. Using data on 69 countries from 1980 to 1997, we find that crises are less likely in economies with more concentrated banking systems even after controlling for differences in commercial bank regulatory policies, national institutions affecting competition, macroeconomic conditions, and shocks to the economy. Furthermore, the data indicate that regulatory policies and institutions that thwart competition are associated with greater banking system fragility.     

Competition and financial stability in European cooperative banks

Cooperative banks are a driving force for socially committed business at the local level, accounting for around one fifth of the European Union (EU) bank deposits and loans. Despite their importance, little is known about the relationship between bank stability and competition for these small credit institutions. Does competition affect the stability of cooperative banks? Does the financial stability of banks increase/decrease when competition is higher? We assess the dynamic relationship between competition and bank soundness (both in the short and long run) among European cooperative banks between 1998 and 2009. We obtain three main results. First, we provide evidence in line with the competition-stability view proposed by Boyd and De Nicolò (2005). Bank market power negatively “Granger-causes” banks' soundness, meaning that there is a positive relationship between competition and stability. Second, we find that this fundamental relationship does not change during the 2007–2009 financial crisis. Third, we show that increased homogeneity in the cooperative banking sector positively affects bank soundness. Our findings have important policy implications for designing and implementing regulations that enhance the overall stability of the financial system and in particular of the cooperative banking sector.     

How does deposit insurance affect bank risk? Evidence from the recent crisis

Deposit insurance is widely offered in a number of countries as part of a financial system safety net to promote stability. An unintended consequence of deposit insurance is the reduction in the incentive of depositors to monitor banks which lead to excessive risk-taking. We examine the relation between deposit insurance and bank risk and systemic fragility in the years leading up to and during the recent financial crisis. We find that generous financial safety nets increase bank risk and systemic fragility in the years leading up to the global financial crisis. However, during the crisis, bank risk is lower and systemic stability is greater in countries with deposit insurance coverage. Our findings suggest that the “moral hazard effect” of deposit insurance dominates in good times while the “stabilization effect” of deposit insurance dominates in turbulent times. The overall effect of deposit insurance over the full sample we study remains negative since the destabilizing effect during normal times is greater in magnitude compared to the stabilizing effect during global turbulence. In addition, we find that good bank supervision can alleviate the unintended consequences of deposit insurance on bank systemic risk during good times, suggesting that fostering the appropriate incentive framework is very important for ensuring systemic stability.     

The relationship between banking market competition and risk-taking: Do size and capitalization matter?

This paper addresses the effects of bank competition on the risk-taking behaviors of banks in 10 Latin American countries between 2003 and 2008. We conduct our empirical approach in two steps. First, we estimate the Boone indicator, which is a measure of competition. We then regress this measure and other explanatory variables on the banking “stability inefficiency” derived simultaneously from the estimation of a stability stochastic frontier. Unlike previous findings, this paper concludes that competition affects risk-taking behavior in a non-linear way as both high and low competition levels enhance financial stability, while we find the opposite effect for average competition. In addition, bank size and capitalization are essential factors in explaining this relationship. On the one hand, the larger a bank is, the more it benefits from competition. On the other hand, a greater capital ratio is advantageous for banks that operate in collusive markets, while capitalization only enhances the stability of larger banks under high and average competition. These results are of extreme importance when considering bank regulations, especially in light of the recent turmoil in the global financial markets.     

How does competition affect bank systemic risk?

Using bank level measures of competition and co-dependence, we show a robust negative relationship between bank competition and systemic risk. Whereas much of the extant literature has focused on the relationship between competition and the absolute level of risk of individual banks, in this paper we examine the correlation in the risk taking behavior of banks. We find that greater competition encourages banks to take on more diversified risks, making the banking system less fragile to shocks. Examining the impact of the institutional and regulatory environment on bank systemic risk shows that banking systems are more fragile in countries with weak supervision and private monitoring, greater government ownership of banks, and with public policies that restrict competition. We also find that the negative effect of lack of competition can be mitigated by a strong institutional environment that allows for efficient public and private monitoring of financial institutions.     

Bank competition and stability: Cross-country heterogeneity

This paper documents large cross-country variation in the relationship between bank competition and bank stability and explores market, regulatory and institutional features that can explain this variation. We show that an increase in competition will have a larger impact on banks’ fragility in countries with stricter activity restrictions, lower systemic fragility, better developed stock exchanges, more generous deposit insurance and more effective systems of credit information sharing. The effects are economically large and thus have important repercussions for the current regulatory reform debate.     

Banking stability,competition, and economic volatility

The paper analyzes the influence of banking stability on the volatility of industrial value added using data for 110 countries. Our results confirm the relevance of lending and asset allocation effects because banking stability reduces the volatility of value added more in industries that have greater external financial dependence and intangible intensity when they are located in countries with more developed financial and institutional systems. Moreover, banking stability helps reduce economic volatility more in countries with less bank market competition. We control for recessions, reverse causality problems, and endogeneity of banking stability.     

Bank competition and corporate financial asset holdings

This paper investigates how bank competition measured by the geographical distribution of bank branches impacts the financial asset holdings of nonfinancial firms. By using a sample of listed nonfinancial firms in China between 2007 and 2019, we find that intensified bank competition caused by the increase in the number of bank branches around firms significantly increases their noncash financial asset holdings, especially for the firms with a higher level of credit constraints or a greater degree of information asymmetry. The result implies that achieving higher yields is the underlying motive for firms to hold noncash financial assets. Moreover, the competition among non-state-owned banks shows a greater impact on corporate financial asset holdings, and the impact of bank competition on noncash financial asset holdings is more pronounced for non-state-owned firms. Our findings provide insight into the determinants of noncash financial asset holdings of firms in a transitional economy.     

Competition and risk‐taking in investment banking

How does competition affect the investment banking business and the risks individual institutions are exposed to? Using a large sample of investment banks operating in seven developed economies over 1997–2014, we apply a panel VAR model to examine the relationships between competition and risk without assuming any a priori restrictions. Our main finding is that investment banks’ higher risk exposure, measured as a long‐term capital‐at‐risk and return volatility, was facilitated by greater competitive pressures for both boutique investment banks and full‐service investment banks. Overall, we find some evidence that more competition leads to more fragility before and during the recent financial crisis.     

Banking Market Size Structure and Financial Stability: Evidence from Eight Asian Countries

Using commercial bank data from eight major Asian countries, we examine the relationship between the banking market size structure and the stability of financial institutions. We also analyze the effect of bank upsizing on the financial stability. Our results show that a rise in large banks’ market power, accompanying an increase in their market shares, lowers the capital adequacy of small banks. Small banks’ nonperforming loans and the possibility of their bankruptcy also increase as large banks’ market shares rise. We further show that larger banks tend to have lower capital adequacy ratios, liquidity ratios, and distance-to-default ratios. Our study suggests that large banks’ greater market shares are associated with small banks’ financial instability. Overall, these findings are consistent with the notion of the recent banking literature that has important antitrust policy implications.     

Bank risk,competition and bank connectedness with firms: A literature review

The outbreak of the 2007–2009 financial crisis and of the European sovereign debt crisis again raised questions about the vulnerability and the behaviour of banking institutions. The unconventional monetary policies that followed have flattened the yield curve and created a low interest rates environment. This can give rise to risk-taking behaviour from banks and can therefore undermine the stability of the banking system with negative impact of the credit supply, corporate investment and real economy. This article proposes a literature review on the main determinants of bank lending and risk-taking decisions, going through the competition in the banking market, the bank connectedness with firms and the role of monetary and banking authorities. The systemic risk concept is also discussed as well as its drivers and potential measures that should be monitored by prudential authorities in order to preserve financial stability.     

Macroprudential policies and bank competition: International bank-level evidence

The paper analyzes the effect of changes in eight types of bank-oriented macroprudential policies on bank competition and stability. Using a bank-level database of a maximum of 2511 listed banks from 52 countries, I find that a tightening in bank-oriented macroprudential policies on average increases both bank competition and stability. However, there are differences across policies and countries. Loan supply and liquidity-based policies increase bank competition whereas capital and tax-based policies reduce bank competition. Tighter legal restrictions on entry and activity in a country reduce the positive (increase the negative) effect of macroprudential policies on bank competition. In terms of policy implications, I identify a sub-set of especially useful macroprudential policies that increase not only financial stability but also bank competition.     

Financial liberalization and bank risk-taking: International evidence

This paper analyzes the channels through which financial liberalization affects bank risk-taking in an international sample of 4333 banks in 83 countries. Our results indicate that financial liberalization increases bank risk-taking in both developed and developing countries but through different channels. Financial liberalization promotes stronger bank competition that increases risk-taking incentives in developed countries, whereas in developing countries it increases bank risk by expanding opportunities to take risk. Capital requirements help reduce the negative impact of financial liberalization on financial stability in both developed and developing countries. However, official supervision and financial transparency are only effective in developing countries.     

How does greater bank competition affect borrower screening? Evidence from China's WTO entry

We analyze the relationship between greater bank competition and the screening of potential borrowers. Using a large sample of Chinese private firms and China's entry into the WTO as a unique setting leading to greater bank competition, we find the following. First, the sensitivity of bank credit to prior borrowing-firm performance increases after China's WTO entry. This sensitivity increase is greater in more bank-dependent industries and smaller in Chinese regions with greater financial sector development. Second, the increase in the sensitivity of bank credit to firm performance is much greater for state-owned firms compared to private firms. Third, the effect of bank credit on subsequent firm productivity and performance is greater for loans given after China's WTO entry compared to those given prior to WTO entry. Overall, the results of our empirical analysis suggest that the stringency of bank screening of borrowers in China increased with greater banking sector competition.     

银行业竞争、融资约束与企业创新——中国工业企业的经验证据

本文将1998-2007年中国工业企业数据、专利申请数据与银监会公布的金融许可证数据相匹配,考察银行业竞争影响企业创新的内在机制。结果发现,竞争的加剧通过缓解企业面临的融资约束,从而提升其创新能力。在弱化内生性问题和一系列稳健性检验后,上述结果仍然稳健。进一步研究发现,外部融资依赖度较高的企业,中小、民营企业,以及位于市场化水平高和法治环境好的地区的企业,银行业竞争通过缓解融资约束促进其创新的效应更加明显。此外,本文还发现股份制银行和城商行的竞争能更好地推动企业创新。因此,建立健全多层次、多元化的金融体系,能有效缓解企业创新的融资困境,激发创新活力。     

Liquidity and bank capital structure

Bank capital requirements reduce the probability of bank failure and help mitigate taxpayers’ sharing in the losses that result from bank failures. Under Basel III, direct capital requirements are supplemented with liquidity requirements. Our results suggest that liquidity provisions of banks are connected to bank capital and that changes in liquidity indirectly affect the capital structure of financial institutions. Liquidity appears to be another instrument for adjusting bank capital structure beyond just capital requirements. Consistent with Diamond and Rajan (2005), we find that liquidity and capital should be considered jointly for promoting financial stability.     

Competition,concentration and risk taking in Banking sector of MENA countries

This paper tests the relationship between competition and bank stability for 356 banks operating in the Middle East North Africa (MENA) countries during the period 2005–2012. Our results show that for the overall sample, a U-shaped relationship between competition and banks’ risk taking for MENA banks. The negative linear relationship between Z-Score and H-statistics in Gulf countries shows that an increase in competition leads to a reduction in the level of financial stability. In the case of other non-Gulf countries, the increase of competition in uncompetitive markets can lead to an increase in stability. The results confirm the importance of the market structure as an explanatory factor for financial stability, but also indicate that concentration is not associated with uncompetitive markets.     

Do small businesses still prefer community banks?

We formulate and test hypotheses about the role of bank type – small versus large, single-market versus multimarket, and local versus nonlocal banks – in banking relationships. The conventional paradigm suggests that “community banks” – small, single-market, local institutions – are better able to form strong relationships with informationally opaque small businesses, while “megabanks” – large, multimarket, nonlocal institutions – tend to serve more transparent firms. Using the 2003 Survey of Small Business Finance (SSBF), we conduct two sets of tests. First, we test for the type of bank serving as the “main” relationship bank for small businesses with different firm and owner characteristics. Second, we test for the strength of these main relationships by examining the probability of an exclusive relationship and main bank relationship length as functions of main bank type and financial fragility, as well as firm and owner characteristics. The results are often not consistent with the conventional paradigm, perhaps because of changes in lending technologies and deregulation of the banking industry.     

The ‘competition–stability/fragility’ nexus: A comparative analysis of Islamic and conventional banks

The ‘competition–stability/fragility’ nexus is one of the more debated issues in the banking literature. However, while there is ample evidence concerning the relationship between competition and stability/fragility in different countries and regions, no prior study investigates this in the context of Islamic and conventional banks. We do this using data on both types of banks drawn from 16 developing economies over the period 2000–12. We measure the lack of competition using the Lerner index, and stability using both accounting-based measures, comprising the Z-score and the nonperforming loan ratio, and market-based measures, including Merton's distance to default. We employ panel vector autoregression and two-stage quantile regression to estimate the relationship. Our results lend support to the competition–fragility hypothesis in both Islamic and conventional banks. We also find the magnitude of the market power effect on stability is greater for conventional banks than Islamic banks. Lastly, banks in the median quantile of stability have a greater ability to reduce credit risk through gaining market power than banks in the lower and upper quantiles.     

银行竞争提高了企业投资水平和资源配置效率吗？——基于分支机构空间分布的研究

银行贷款是我国企业融资的重要方式,在企业生产经营中发挥着举足轻重的作用。2006年和2009年,我国先后两次放松了商业银行分支机构市场准入规制,银行分支机构空间分布发生了较大变化,银行竞争水平和服务实体经济能力明显提升。本文利用2001-2012年国家统计局工业企业数据,以企业周边银行分支机构的数量衡量银行竞争水平,研究银行竞争对企业投资的影响。研究发现,银行分支机构数量的增加显著提高了企业投资水平和投资效率。进一步研究表明,银行分支机构数量增加对企业投资效率的提升作用主要表现在投资不足的企业和非国有企业中,企业融资约束降低和代理冲突减弱是银行竞争提高企业投资效率的主要原因。本研究拓展了银行竞争以及企业投资和资源配置效率的相关文献,对供给侧结构性改革和银行业高质量发展具有启示意义。