An examination of the effect of stock market liquidity on bank market power

This paper investigates the spillover effects of aggregate stock market liquidity on bank market power using a sample of 44 countries and 7297 individual banks from 1999 to 2014. Country-level and bank-level analysis shows that enhancement in stock market liquidity strengthens the market power of the banking sector. This relationship is more pronounced in developed market countries and in countries with common law origin, which offer better investor protection. To the best of our knowledge, this is the first paper to provide comprehensive empirical evidence of the complementary relationship between banks and stock markets, providing important policy implications for regulators.     

Strategic trading and learning about liquidity

Many practitioners point out that the speculative profits of institutional traders are eroded by the difficulty in gauging the price impact of their trades. In this paper, we develop a model of strategic trading where speculators face such a dilemma because of incomplete information about time-varying market liquidity. Unlike the competitive market makers that they trade against, informed traders do not know the distribution of liquidity (“noise”) trades. Instead, they have to learn about liquidity from past prices and trading volume. This learning implies that strategic trades and market statistics such as informational efficiency are path-dependent on past market outcomes. Our paper also has normative implications for practitioners.     

Market power and firm risk: A test of the ‘quiet life’ hypothesis

This paper presents an empirical investigation of John R. Hicks' ‘quiet life’ hypothesis that firms in monopolistic markets will be more risk averse than firms in competitive markets. A sample of 6,500 unit banks is used in a multivariate regression analysis to test the relationship between market concentration and overall risk measured by the coefficient of variation, as well as certain financial ratios. Financial data are for the years 1969–1978. Test results are consistent with Hicks' ‘quiet life’ hypothesis. It is also notable that while most structure-performance studies in banking have found a quantitatively small effect of structure on performance, these results suggest that the effect may be fairly substantial.     

Assessing competition in the banking industry: A multi-product approach

This paper investigates the competitive aspects of multi-product banking operations. Extending Panzar and Rosse’s (1987) model to the case of a multi-product banking firm, we show that higher economies of scope in multi-product banking are associated with lower Panzar–Rosse measures of competition in the banking sector. To test this empirical implication and determine the impact of multi-production on market power, we use a new dataset on the Brazilian banking industry. Consistent with our theoretical prediction, we find that banks that offer classic banking products (i.e., loans and credit cards) and other banking products (i.e., brokerage services, insurance and capitalization bonds) have substantially higher market power than banks that offer only classic products. These results suggest a positive bias in the traditional estimates of competition in which multi-output actions are not considered.     

Bank-Specific Daily Interest Rate Adjustment in the Dutch Mortgage Market

This paper presents an empirical analysis of the interest rate setting behavior of the four largest banks in the Dutch mortgage market, using advertised interest rates at a daily frequency. The evidence for the long run pricing behaviour suggests that the banks operate in a competitive environment as they base their interest rates on funding cost. However, two banks appear to be less cost sensitive than the others. In the short run, most of the banks adjust their rates less strongly to funding cost increases than to decreases, which suggests competitive pressures. For one bank significant evidence is found for a quicker response to negative than to positive deviations of actual from desired interest rates.     

Banks as Catalysts for Industrialization

We provide a new theory of the role of banks as catalysts for industrialization. In their influential analysis of continental European industrialization, Gerschenkron and Schumpeter argued that banks promoted the creation of new industries. We formalize this role of banks by introducing financial intermediaries into a “big push” model. We show that banks may act as catalysts for industrialization provided they are sufficiently large to mobilize a critical mass of firms and that they possess sufficient market power to make profits from coordination. The theory provides simple conditions that help explain why banks seem to play a creative role in some but not in other emerging markets. The model also shows that universal banking helps to reduce the cost of acting as catalyst. Journal of Economic Literature Classification Numbers: G21, N2, O14, O16.     

Do more competitive banks have less market power? The evidence from Central and Eastern Europe

Studies that have explored the competitive behaviour of banks frequently arrive at divergent conclusions because they use different measures of competition. This study first discusses these various measures of competition and their divergence from a theoretical perspective and then employs them to measure the competitiveness of Central and Eastern European banks and to investigate whether more competitive banks really have less market power. We find that these banks increase their market power when there is low banking concentration and do not necessarily become less competitive. Moreover, a more concentrated banking market does not enhance the market power of banks and does not make them less competitive, and more competitive banks do not necessarily have less market power. This latter outcome ensues because revenue and production reactions to cost evolution are either positively related – or completely unrelated – to the competitive behaviour of banks.     

中国商业银行市场势力对其效率和稳定性的影响

文章运用随机边界模型估算了中国商业银行近十年来的成本、利润效率,并分别以勒纳指数和Z指数代表市场势力和稳定性,考察了市场势力对银行经营效率和稳定性的影响。结果表明:内地商业银行整体的效率逐年上升,但仍落后于香港的银行;四大商业银行的效率低于中小银行。市场势力与效率呈反向关系,而与稳定性的关系要区别对待:市场势力一方面增加了中小银行和香港银行的稳定性,另一方面也增加了四大商业银行和交通银行的经营风险。因此,继续深入金融自由化和银行业改革,恰当地引入一些竞争,会对中国商业银行经营的效率和稳定性起到积极的作用。     

IT use,productivity, and market power in banking

Information management is a core process in banking that can resolve information asymmetries and thereby help to mitigate competitive pressure. We test if the use of information technology (IT) contributes to bank output, and how IT-augmented bank productivity relates to differences in market power. Detailed bank-level information on the use of IT reveals a substantial upward bias in bank productivity estimates when ignoring banks’ IT expenditures. IT-augmented bank productivity correlates positively with Lerner markups. A mere increase in IT expenditures, however, reduces markups. Results hold across a range of bank output definitions and productivity estimation methods.     

Evaluating the state of competition of the Greek banking industry

The present paper uses three different New Empirical Industrial Organization (NEIO) approaches (Panzar–Rosse, Bresnahan–Lau and Hall–Roeger models) to investigate competitive conditions in the Greek banking sector over the period 1995–2004. One important event which has taken place in the Greek banking industry, especially after 1998, is a wave of mergers and acquisitions. This study also measures and compares the degree of banking competition in two sub-periods, 1995–1998 and 1999–2004, in order to investigate the effect of mergers and acquisitions on the competitive structure of Greek banking. The empirical results of the three models indicate a shift from competitive to non-competitive conditions when moving from the first to the second sub-period. This finding suggests that mergers and acquisitions have affected the level of completion of Greek banking, rendering the industry less competitive. Furthermore, taking into consideration the negative effects of mergers and acquisitions on technical efficiency and the total factor productivity of Greek banking (Rezitis, 2008), the empirical findings of the present study provide some indications that one of the outcomes of the Greek banks’ merging activities, at least in the short run, might be to attain market power and thus higher profits, rather than higher efficiency and lower costs.     

外资入股对商业银行效率的影响：基于面板数据的分析

本文运用基于面板数据的回归模型,对引入外资两年以上的中资商业银行进行了实证分析,结果表明外资战略投资者的入股对中资商业银行效率具有明显的改善作用。     

Pricing,operating efficiency,and profitability among large commercial banks

This study uses statistical cost accounting techniques to examine the relationship between bank profitability and two dimensions of operating performance — pricing and operating efficiency. The traditional statistical cost accounting model, which relates a firm's income to its asset and liability mix, is expanded to account for differences in market structure, regional demand and supply conditions, and macroeconomics factors. The study focuses on large (above $500 million in domestic deposits) banks, comparing a sample of relatively profitable banks against a matched group of much less profitable banks over the period 1970–1977. After allowing for regional supply and demand factors, the high and low-profit banks are estimated to earn equal market rates of return on individual assets and liabilities. There is virtually no evidence that differential prices are an important discriminator between the two bank groups. Some evidence is found that the high-earnings banks experience lower operating costs on some liabilities, but the opposite is true with respect to selected asset items. After taxes are taken into account, however, any such cost differentials virtually disappear. Overall, there is no compelling evidence that high-profit banks are characterized by greater operating efficiency than their low-earnings counterparts. This finding is consistent with the view that over time, and especially among relatively large banks, information flows and competitive pressures act to reduce operating efficiency differences that may appear in the short run.     

Geographic Deregulation and Competition in the U.S. Banking Industry

We examine the effects of geographic deregulation on state‐level competition in U.S. banking markets over the period 1976‐2005. The empirical results confirm that the U.S. banks in general operated under monopolistic competition during the period examined. After partitioning the sample based on bank size we find that the market competition for large banks in Delaware, Oregon, and Rhode Island can be characterized as monopolistic while small banks in Arizona and Massachusetts seem to have operated under the conditions of perfect competition. The removal of geographic restrictions appears to have very limited and non‐uniform effect on state‐level competitive conduct. There is some evidence that the U.S. banking industry might have actually experienced a less competitive behavior in recent years due to increased market power of larger banks.     

Do negative interest rates affect bank risk-taking?

We offer early evidence on the impact of negative interest rate policy (NIRP) on banks’ risk-taking. Our primary result shows banks in NIRP-adopter countries reduce holdings of risky assets by around 10 percentage points following implementation of NIRP in comparison to banks in non-adopter countries. We augment this result by identifying NIRP’s impact on other aspects of banks’ risk-taking behaviour; NIRP is associated with reductions in banks’ loan growth and average loan price (by 3.7 percentage points and 59 basis points) and a rebalancing of asset portfolios towards safer assets. Secondly, we find the NIRP-effect is heterogeneous; post-NIRP risk-taking increases at strongly capitalised banks and at banks operating in less competitive markets that exploit market power to insulate net interest margins and profitability. Our robust empirical evidence supports the “de-leverage” hypothesis which suggests that banks acquire safer, liquid assets to bolster their capital positions rather than searching for value by acquiring riskier assets. We base our evidence on a sample of 2,584 banks from 33 OECD countries across 2012 to 2016, and from models that employ a difference-in-differences framework.     

Heterogeneous Market-Making in Foreign Exchange Markets: Evidence from Individual Bank Responses to Central Bank Interventions

Using high-frequency data this article provides evidence that, on average, central bank interventions lead to increased volatility and a widening of bid–ask spreads in the intra-day market for foreign exchange. The results also show that there is dispersion in the bid–ask spread revisions posted by individual banks in response to the central bank entering the market. The findings are consistent with predictions from standard models of market microstructure with heterogeneous agents and have implications for the market power of central banks as well as the payoff generated by trading large amounts of international reserves.     

The determinants of bank interest rate margins: an international study

This paper studies the determinants of bank net interest margins (NIMs) in six selected European countries and the US during the period 1988–1995 for a sample of 614 banks. We apply the Ho and Saunders model (Ho, T., Saunders, A., 1981. The determinants of bank interest margins: theory and empirical evidence. Journal of Financial and Quantitative Analyses 16, 581–600) to a multicountry setting and decompose bank margins into a regulatory component, a market structure component and a risk premium component. The regulatory components in the form of interest-rate restrictions on deposits, reserve requirements and capital-to-asset ratios have a significant impact on banks NIMs. The empirical results suggest an important policy trade-off between assuring bank solvency—high capital-to-asset ratios—and lowering the cost of financial services to consumers—low NIMs. The more segmented or restricted the banking system—both geographically and by activity—the larger appears to be the monopoly power of existing banks, and the higher their spreads. Macro interest-rate volatility was found to have a significant impact on bank NIMs; this suggests that macro policies consistent with reduced interest-rate volatility could have a positive effect in reducing bank margins.     

The regulations–risk taking nexus under competitive pressure: What about the Islamic banking system?

Does market power condition the effect of bank regulations and supervision on bank risk taking? We focus on three regulatory tools: capital requirements, the restriction of activities, and official supervisory powers. Employing 10 years of unbalanced panel data on 123 Islamic and conventional banks operating in the Middle East and Asia, we arrive at the following conclusions. First, banking market power strengthens the negative impact of capital regulation on bank risk taking. Second, our empirical results suggest that the negative effect of activity restrictions on stability is diminished when banks have greater market power. Finally, we do not find strong evidence that the negative effect of supervisory power on banks’ risk taking is conditioned by their competitive behavior. In further analysis, we differentiate between Islamic and conventional banks regarding their competition, as well as their risk behavior. The results differ according to the banking business model. These findings could be useful for bank regulators in light of the accomplishment of Islamic banks’ regulatory framework. Indeed, the adoption of Basel III represents a significant regulatory challenge, given that it does not take into account the specificities of Islamic banks.     

Foreign Ownership and Market Power in Banking: Evidence from a World Sample

The nexus between ownership and competition in the banking sector is a major concern to policymakers around the world but one that is rarely comprehensively examined. For 131 countries and 13 years we match bank ownership with over 50,000 bank‐year estimates of individual bank market power. We find that ownership does not explain market power at the individual bank level. However, at the country level, foreign bank ownership has a positive and significant impact on market power mainly because foreign banks enter through mergers or acquisitions and not through greenfield investments. The observed increases in market power primarily originate from decreases in the marginal cost.     

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.     

在沪中外资银行竞争力比较研究

基于企业能力理论,本文对在沪15家中外资银行竞争力水平进行实证研究。研究结果表明,外资银行整体竞争力强于中资银行,中资银行在客户资源、资产规模、网点等总量方面竞争优势明显,外资银行则在风险控制、成本控制、金融创新、人才培育等方面竞争优势突出。在中资银行内部,股份制银行的竞争力全面优于地方性银行。在外资银行内部,来自亚洲新兴市场的外资银行竞争力整体强于来自欧美市场的外资银行。中外资银行竞争优势具有较强的互补性,相互学习和借鉴有助于提高中国银行业整体竞争力水平。根据实证结果,总结了中外资银行竞争力优势和不足形成的原因,并就中资银行竞争力培育提出了政策建议。