Interest margins and bank regulation in Central America and the Caribbean

This paper examines empirically the determinants of bank interest margins in Central America and the Caribbean over the period 1998–2014. A particular focus is set on the impact of differences in the regulatory environment and market structure across countries in explaining the interest margins of individual banks. Our results suggest that bank market power, operating costs, credit risk, and liquid asset holdings increase the margin between loan and deposit rates, while increased income diversification and GDP growth are associated with lower loan-deposit spreads. When considering information on banking regulation, we find strong evidence to support our main hypothesis that improvements in market quality and liberalization have a significant effect on interest margins. More specifically, reductions in entry requirements to banking, higher involvement of foreign banks, and increased financial statement transparency are associated with significant reductions in interest margins.     

The determinants of net interest income in the Mexican banking system: An integrated model

This paper analyzes net interest income in the Mexican banking system over the period 1993–2005. Taking as reference the seminal work by Ho and Saunders [Ho, T., Saunders, A., 1981. The determinants of banks interest margins: theory and empirical evidence. Journal of Financial and Quantitative Analysis XVI (4), 581–600] and subsequent extensions by other authors, our study models the net interest margin simultaneously including operating costs and diversification and specialization as determinants of the margin. The results referring to the Mexican case show that its high margins can be explained mainly by average operating costs and by market power. Although non-interest income has increased in recent years, its economic impact is low.     

中国银行业净利差的影响因素

在Ho-Saunders领导模型的基础上引入非利差收入、非传统贷款资产及央行基准利差因素,提出了更适合中国银行业现状的多产品纯利差决定模型。采用2000～2008年间23家商业银行的面板数据进行实证分析,结果发现影响净利差的因素有:风险厌恶程度、运营成本、信用风险、资产规模、上年净利差、非利差收入、非传统资产及基准利差等。根据这些因素可以看出,四大商业银行近年净利差波动性较大,而中小股份制商业银行经营日趋稳定。中国商业银行应致力于拓展中间业务及产品多样化,逐步改变传统盈利模式和收入结构。     

Competition and Concentration in the New European Banking Landscape

This paper measures the degree of concentration and competition in the enlarged European Union (EU) banking environment over the period 1998–2002. In the empirical part we opt for a methodology as proposed by Panzar and Rosse based on a non‐structural estimation of market competition. Our results suggest that European banks were operating under conditions of monopolistic competition and that bank interest revenues in the 10 new EU member states was earned under conditions of higher competition than those that existed in the old EU banking countries. The opposite result was observed for total operating revenues. Smaller banks earn interest income in a less competitive environment than larger banks, while the opposite is observed for total revenues.     

Bank profitability and the business cycle

An important element of the macro-prudential analysis is the study of the link between business cycle fluctuations and banking sector profitability and how this link is affected by institutional and structural characteristics. This work estimates a set of equations for net interest income, non-interest income, operating costs, provisions, and profit before taxes, for banks in the main industrialized countries and evaluates the effects on banking profitability of shocks to both macroeconomic and financial factors. Distinguishing mainly the euro area from Anglo-Saxon countries, the analysis also identifies differences in the resilience of the respective banking systems and relates them to the characteristics of their financial structure.     

Post‐merger strategy and performance: evidence from the US and European banking industries

The banking industry has one of the most active markets for mergers and acquisitions. However, little is known about the type of operational strategies adopted by banking firms in the years following a deal. For a sample of bidding banks in the USA and Europe, this study compares the design and performance implications of different post‐merger strategies in both geographical regions. Using accounting data, we show that European banks pursue a cost‐cutting strategy by increasing efficiency levels vis‐à‐vis non‐merging banks and by cutting back on both labour costs and lending activities. US banks, on the other hand, raise both interest and non‐interest income in the post‐merger period.     

On the determinants of bank interest margins under credit and interest rate risks

This paper explores the determinants of optimal bank interest margins based on a simple firm-theoretical model under multiple sources of uncertainty and risk aversion. The model demonstrates how cost, regulation, credit risk and interest rate risk conditions jointly determine the optimal bank interest margin decision. We find that the bank interest margin is positively related to the bank's market power, to the operating costs, to the degree of credit risk, and to the degree of interest rate risk. An increase in the bank's equity capital has a negative effect on the spread when the bank faces little interest rate risk. The effect of rising interbank market rate on the spread is ambiguous and depends on the net position of the bank in the interbank market. Our findings provide alternative explanations for the empirical evidence concerning bank spread behavior.     

Banking deregulation and credit risk: Evidence from the EU

This paper studies the effect of banking deregulation on credit risk. Its theoretical model shows that a bank is willing to invest more resources in screening borrowers when there is an entry threat, even though loan rates are driven lower. Thus, deregulation may result in improved loan quality and lower credit risk. This result is tested using bank-level balance sheet data and macroeconomic data for the European Union. The data reveal that competition intensified after the completion of the Second Banking Directive, while loan quality improved in most markets. Evidence is found that the loan quality improvement is associated with lower interest margin.     

Determinants of bank interest margins: Impact of maturity transformation

This paper explores the extent to which interest risk exposure is priced into bank margins. Our contribution to the literature is twofold: First, we extend the Ho and Saunders (1981) model to capture interest rate risk and expected returns from maturity transformation. Banks price interest risk according to their individual exposure separately in loan and deposit intermediation fees, but reduce (increase) these charges for loans (deposits) when positive excess holding period returns from long-term exposures are expected. Second, we test the model-derived hypotheses not only for the commonly investigated net interest margin but also for interest income and expense margins separately in a sample encompassing the German universal banking sector between 2000 and 2009. Our results suggest that banks price their individual interest rate risk and corresponding expected excess holding period returns via the asset side into the net interest margin. For liabilities, we find that interest rate risk exposure is only priced in by smaller, local banks.     

我国商业银行经营投资银行业务对风险影响的实证研究

本文以2009-2018年19家商业银行为研究对象,运用波动性分析、相关性分析及面板数据回归分析方法,考察了经营投资银行业务对银行风险的影响。研究结果表明,投资银行收入无明显周期性趋势,波动性明显高于利息净收入,经营投资银行业务会加剧银行业收入的不确定性,但由于收入占比较小,投资银行业务并非造成我国银行业收入波动的主要因素。多数银行的投资银行收入与利息净收入表现为正相关性,银行难以通过经营投资银行业务实现风险分散目的。投资银行业务对银行风险影响的回归结果较为显著,随着投资银行收入在银行收入结构中的权重越来越大,银行多元化收入程度随之加深,银行风险也随之下降。     

The Diversification and Cost Effects of Interstate Banking

This study examines recent interstate bank geographic diversification inside the United States. More than 80 holding companies that gradually evolved into interstate banking companies were tested for significant linkages to risk and efficiency indicators. The study finds that while geographic expansion frequently is associated with increases in risk, when banking firms were grouped by threshold levels of geographic diversification more highly diversified interstate banks appear to achieve reductions in risk exposure and operating costs. The study's results suggest the spread of interstate banking may change the industry's risk and cost profile significantly with profound implications for the future of the deposit insurance fund.     

The extreme risk connectedness of the new financial system: European evidence

The paper empirically analyses the tail risk connectedness between FinTech and the banking sector in the European context over 2015–2022. For this purpose, we use the Tail-Event driven NETworks (TENET) risk model, i.e., we can capture the behaviour of extreme (negative and positive) risk spillover within the financial system. The results highlight how most tail risk spillovers are from banks to FinTech firms. Also, the findings suggest that the spillovers of cross-sector tail risk are more significant in downside (bearish) risk conditions than in upside (bullish) one. We find evidence of an asymmetric effect of extreme risk spillover to the real economy. Finally, we evaluate the monetary policy’s impact on extreme risk. Our findings highlight the importance of closer monitoring risk spillover between FinTech institutions and the European banking system to maintain financial stability.     

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.     

Bank Corporate Governance,Beyond the Global Banking Crisis

Following up on the publication of the Walker Report ( 2009 ) in the United Kingdom, international organizations such as the Basel Committee ( 2010 ), the OECD ( 2010 ), and the European Union ( 2010 ) have proposed guidelines to improve bank corporate governance and, more specifically, risk governance. These international reports vary widely on what the prime objective of bank corporate governance should be, with one group recommending a shareholder‐based approach, and the other a stakeholder‐based one. Moreover, the focus of these reports is exclusively on risk avoidance, with little guidance as to how an acceptable level of risk should be defined. Drawing on insights from economics and finance, this paper is intended to contribute to the debate on bank corporate governance. Our four main conclusions are as follows. Firstly, the debate on bank governance should concern not only the boards but also the governance of banking supervision with clearly identified accountability principles. Secondly, since biases for short‐term profit maximization are numerous in banking, boards of banks should focus on long‐term value creation. Thirdly, board members and banking supervisors should pay special attention to cognitive biases in risk identification and measurement. Fourthly, a value‐based approach to risk taking must take into account the probability of stress scenarios and the associated costs of financial distress. Mitigation of these costs should be addressed explicitly in the design of bank strategy.     

欧洲主权债务危机的发展与应对之策

受近期希腊债务违约风险上升、欧债危机向核心国蔓延、欧洲银行业融资缺口扩大等负面因素冲击，欧洲金融市场遭遇大幅动荡。文章指出，在短期内，防止希腊债务违约是遏制欧债危机进一步蔓延、防范债务危机与银行危机并发的关键；长期而言，欧元及欧盟运作机制的改革将不可避免，完善退出机制将是欧元区长期稳定运作的基石。     

European Banking Integration: Don’t Put the Cart before the Horse

This paper reviews the progress in European banking integration over the last twenty years, and evaluates the current system of banking supervision and deposit insurance based on ‘home country’ control. The public policy implications to draw from the paper are threefold: First, after a relatively slow start, European banking integration is gaining momentum, in terms of cross‐border flows, market share of foreign banks in several domestic markets, and cross‐border M&As of significant size. If this trend continues, the issue of adequate supervision and safety nets in an integrated European banking market will become even more pressing. Second, although until recently banks have relied mostly on subsidiary structures to go cross‐border, this is changing with the recent creation of the European company statute, which facilitates cross‐border branch banking. A review of the case of the Scandinavian bank, Nordea Bank AB, helps to understand some remaining barriers to integration, and the supervisory issues raised by branch banking. Third, it is argued that the principle of ‘home country’ supervision is unlikely to be adequate in the future for large international banks. Because the closure of an international bank would be likely to have cross‐border spillovers, and because some small European countries might be unable to finance the bail‐out of their very large banks, centralization, or at least Europe‐wide coordination, of the decision to close or bail‐out international banks is needed. This raises the issue of European funding of bail‐out costs, European banking supervision, and European deposit insurance.     

A Test of the Law of One Price in Retail Banking

This paper investigates the level and the determinants of retail banking interest rate differences among Spanish banks in the period 1989–2003. We find that the interest rates of twenty five different bank loan and deposit products adjust rather rapidly to their long-term values in response to external shocks, as the relative version of the Law of One Price predicts, but the evidence runs contrary to the absolute version of the Law. Credit risk premium, part of the marginal cost of the loans granted by a particular bank, is an important source of interest rate dispersion across banks and loan products, both before and after Spain joined the Euro zone. Therefore, differences in credit risk policies across banks must be taken into account when forming expectations about European retail banking integration.     

Exploring the nexus between banking sector reform and performance: Evidence from newly acceded EU countries

The aim of this study is to examine the relationship between banking sector reform and bank performance – measured in terms of efficiency, total factor productivity growth and net interest margin – accounting for the effects through competition and bank risk-taking. To this end, we develop an empirical model of bank performance, which is consistently estimated using recent econometric techniques. The model is applied to bank panel data from ten newly acceded EU countries. The results indicate that both banking sector reform and competition exert a positive impact on bank efficiency, while the effect of reform on total factor productivity growth is significant only toward the end of the reform process. Finally, the effect of capital and credit risk on bank performance is in most cases negative, while it seems that higher liquid assets reduce the efficiency and productivity of banks.     

银行价格竞争、融资约束与企业研发投资——基于“中介效应”模型的实证研究

近年来我国利率市场化改革积极推进,实体经济发展积极向创新驱动转型,一个亟须研究厘清的关键问题是,银行业竞争如何驱动企业创新活动？本文关注银行价格竞争对企业创新的影响,以2013—2018年沪深两市的上市企业为样本,采用“中介效应”因果分析模型,实证检验了银行价格竞争对企业研发投资的影响,并识别出以融资约束为中介渠道的作用机制。研究发现,银行价格竞争不仅会提高银行的风险容忍度,直接增加R&D投资的信贷供给意愿,而且还会通过降低贷款价格和增加贷款可得性来缓解企业整体的融资约束,间接促进企业创新活动。这一机制在解除贷款利率管制之后以及在民营企业层面体现得更加明显。本文的研究结果对于深化金融市场化改革、改善金融服务实体经济效果以及实施经济创新驱动发展战略,具有明确的政策启示。     

Benefits from a changing payment technology in European banking

An “output characteristics” cost function is used to identify payment sources of technical change in European banking and estimate associated benefits. As the share of electronic payments in 12 European countries rose from 0.43 in 1987 to 0.79 in 1999 and ATMs expanded while the number of branch offices was constant, bank operating costs are $32 billion lower than they otherwise might have been, saving 0.38% of the 12 nations’ GDP. Policies facilitating these changes (antitrust exemptions to weakly coordinate implementation of payment service pricing) would permit benefits to be more fully realized.