Risk-weighted capital requirements and portfolio rebalancing

We use a 2013 Norwegian policy reform to study how banks react to higher capital requirements and how these adjustments transmit to the real economy. Using bank balance sheet data, we document that banks raise capital ratios by reducing risk-weighted assets. Most of the reduction in risk-weighted assets is accounted for by a reduction in average risk weights. Consistent with this reduction in risk, we document a substantial decline in credit supply to the corporate sector relative to the household sector. We also show that banks react to higher requirements by increasing interest rates, consistent with the reduction in corporate credit growth being supply driven. Using administrative loan level tax data, we document a reduction in lending on the firm level. This is robust to controlling for firm fixed effects, thereby accounting for potential firm-bank matching. Finally, we find that the reduction in bank lending has a negative impact on firm employment growth and that this effect is driven by small firms.     

Sentiment volatility and bank lending behavior

Using a panel of commercial, co-operative and savings banks from G7 countries, we investigate whether the changes in sentiment and its volatility affect banks' lending behavior. We show that the changes in economic agents' sentiment and its volatility affect bank lending negatively, while the impact sizes differ across indicators. We also examine volatility effects on banks' loan growth as uncertainty reaches excessive levels. We highlight the role that several bank-specific variables play on bank lending and discuss to what extent uncertainty effects are transmitted on credit growth through them.     

GSIB status and corporate lending

Global Systemically Important Banks (GSIBs) face additional capital requirements and closer supervision. We study how closer supervision affects corporate credit supply and investigate consequences for firms. GSIB designations reduce lending on average by 5.9% but to risky firms by 7.2%. The consequences are lower asset, sales, and investment growth, especially among high-risk borrowers, and reduced R&D expenditures among all GSIB-dependent firms. Closer supervision therefore reduces banks' risk-taking but has potentially unintended implications for firms' ability to finance innovation, which seems to crucially depend on bank credit. The supervision-induced effects are larger than those attributed to GSIB-specific capital surcharges.     

Capital requirements and bank behavior in the UK: Are there lessons for international capital standards?

The financial crisis prompted widespread interest in developing a better understanding of how capital regulation drives bank behavior. This paper uses a unique, comprehensive database of regulatory capital requirements on all UK banks to examine their effects on capital, lending and balance sheet management behavior. We find that capital requirements that include firm-specific, time-varying add-ons set by supervisors affect banks’ desired capital ratios and that resulting adjustments to capital and lending depend on the gap between actual and target ratios. We use these results to measure the effects of a capital regime that includes features similar to those embedded in the UK framework. Our results suggest that countercyclical capital requirements may be less effective in slowing credit activity when banks can readily satisfy them with lower-quality (lower-costing) capital elements versus higher-quality common equity. Given the size of the UK banking sector and the global nature of many of the largest institutions in the UK banking sector, the results have implications for the ongoing debate surrounding the design and calibration of international capital standards.     

The real effects of bank taxation: Evidence for corporate financing and investment

This paper examines how bank taxation affects the financing decisions and investment activities of corporates. Exploiting exogenous tax variation at the bank level, we show that taxing banks' gross profits leads to higher bank leverage, and results in lower risk and credit supply. The contraction in credit supply has implications for corporate debt financing and investment activity. Corporates more exposed to banks subject to gross profit tax exhibit lower leverage and rely less on bank debt. Corporates partly offset lower bank financing by switching to bond financing. The cost of bond financing increases with corporate exposure to the tax. A greater exposure also impacts negatively on corporate investment activity. Overall, our results highlight the importance of bank taxation for corporate financing and investment decisions.     

Credit and Banking in a DSGE Model of the Euro Area

This paper studies the role of credit supply factors in business cycle fluctuations using a dynamic stochastic general equilibrium (DSGE) model with financial frictions enriched with an imperfectly competitive banking sector. Banks issue collateralized loans to both households and firms, obtain funding via deposits, and accumulate capital out of retained earnings. Loan margins depend on the banks' capital‐to‐assets ratio and on the degree of interest rate stickiness. Balance‐sheet constraints establish a link between the business cycle, which affects bank profits and thus capital, and the supply and cost of loans. The model is estimated with Bayesian techniques using data for the euro area. The analysis delivers the following results. First, the banking sector and, in particular, sticky rates attenuate the effects of monetary policy shocks, while financial intermediation increases the propagation of supply shocks. Second, shocks originating in the banking sector explain the largest share of the contraction of economic activity in 2008, while macroeconomic shocks played a limited role. Third, an unexpected destruction of bank capital may have substantial effects on the economy.     

On the role of Islamic and conventional banks in the monetary policy transmission in Malaysia: Do size and liquidity matter?

This paper empirically investigates the impact of monetary policy on the credit supply of Islamic versus conventional banks of Malaysia using an unbalanced panel dataset over the period 2005-2016. While estimating the effects of three alternative measures of monetary policy on banks' credit supply, we include several bank-specific and macroeconomic variables in the specification as control variables. We provide strong evidence on the existence of the credit channel of monetary policy transmission mechanism in Malaysia. Yet, we show that Islamic banks respond considerably less to changes in monetary policy instruments as compared to their conventional counterparts. We also find that the monetary policy measures affect small-sized banks and less-liquid banks more as compared to large-sized and more-liquid banks. Our findings suggest that for an effective monetary policy, there is a vital need to consider the nature of Islamic banking while devising any monetary policy instruments to manage credit supply in the economy.     

Bank Capital Ratios Across Countries: Why Do They Vary?

This paper extends the literature on bank capital structure by modeling capital structure as a function of important public policy and bank regulatory characteristics of the home country, as well as of bank specific variables, country macro-economic conditions and country level financial characteristics. The model is estimated with annual data for an unbalanced panel of the 78 largest private banks in the world headquartered in 12 industrial countries over the period between 1992 and 2005. The results indicate that bank capital ratios are significantly affected in the hypothesized directions by most of the bank-specific variables. Several of the country characteristic and policy variables are also significant with the predicted sign: banks maintain higher capital ratios in home countries in which the bank sector is relatively smaller and in countries that practice prompt corrective actions more actively, have more stringent capital requirements, and have more effective corporate governance structures.     

Credit Traps and Macroprudential Leverage

We construct a macroeconomic model with overlapping generations to study credit traps—prolonged periods of stagnant real activity accompanied by low productivity, financial sector undercapitalization, and credit misallocation. Shocks to bank capital tighten banks' borrowing constraints causing them to allocate credit to easily collateralizable but low productivity projects. Low productivity weakens bank capital generation, reinforcing tight borrowing constraints, sustaining the credit trap steady state. Macroprudential policy to limit bank leverage can be welfare enhancing. In the presence of a credit trap, optimal leverage policy is countercyclical.     

CECL: Timely Loan Loss Provisioning and Bank Regulation

We investigate how provisioning models interact with bank regulation to affect banks' risk-taking behavior. We study an accuracy versus timeliness trade-off between an incurred loss model (IL) and an expected loss model (EL) such as current expected credit loss model or International Financial Reporting Standards 9. Relative to IL, even though EL improves efficiency by prompting earlier corrective action in bad times, it induces banks to originate either safer or riskier loans. Trading off ex post benefits versus ex ante real effects, we show that more timely information under EL enhances efficiency either when banks are insufficiently capitalized or when regulatory intervention is likely to be effective. Conversely, when banks are moderately capitalized and regulatory intervention is sufficiently costly, switching to EL impairs efficiency. From a policy perspective, our analysis highlights the roles that regulatory capital and the effectiveness of regulatory intervention play in determining the economic consequences of provisioning models. EL spurs credit supply and improves financial stability in economies where intervening in banks' operations is relatively frictionless and/or regulators can tailor regulatory capital to incorporate information about credit losses.     

The macroeconomic impact of bank capital requirements in emerging economies: Past evidence to assess the future

We test for emerging economies the hypothesis – previously verified for G-10 countries only – that the enforcement of bank capital asset requirements (CARs) curtails the supply of credit. The econometric analysis on individual bank data suggests three main results. First, CAR enforcement significantly trimmed credit supply, particularly at less-well capitalized banks. Second, the negative impact has been larger for countries enforcing CARs in the aftermath of a currency/financial crisis. Third, the adverse impact of CARs has been somewhat smaller for foreign-owned banks, suggesting that opening up to foreign investors may have partly shielded the domestic banking sector from negative shocks. Overall, CAR enforcement – inducing banks to reduce their lending – may have had both beneficial and detrimental effects. On one hand, it may have reduced ill-advised lending – possibly induced by banks' exploitation of the public safety net – and this is desirable. On the other hand, CAR enforcement may have induced an aggregate credit slowdown or contraction in the examined emerging countries, thus exacerbating liquidity constraints and negatively affecting real activity. This paper is relevant to the ongoing debate on the impact of the revision of bank CARs, as contemplated by the new Basel proposal. Our results suggest that in several emerging economies the revision of bank CARs could well induce a credit supply retrenchment, which should not be underestimated.     

Bank credit default swaps and deposit insurance around the world

We investigate the impact of deposit insurance schemes on banks' credit risk – a predictor of failure and a key element in the current financial crisis. Unlike most studies, which use balance sheet measurements of risk, we adopt a forward-looking and market-based measure of bank credit risk: the credit default swap (CDS) spread. We find that banks in countries with explicit deposit insurance systems have higher CDS spreads, supporting the “moral hazard” view. The results suggest that deposit insurance design features that lessen the adverse impact are risk-adjusted premium, coinsurance systems, government-established systems, “risk-minimizing” systems, and systems with dual-funding sources. Full coverage appears to stabilize bank risk only during the financial crisis period. More stringent bank regulation, such as capital adequacy regulation and independent supervision, could reduce the undesirable impact of deposit insurance. Deposit insurance seems to help stabilize volatile markets, as evidenced during the financial crisis and in countries with greater market volatility. In addition, we find that the adverse impact of deposit insurance on bank credit risk is more pronounced for banks with low asset quality and low liquidity.     

M‐PRESS‐CreditRisk: Microprudential and Macroprudential Capital Requirements for Credit Risk under Systemic Stress

M‐PRESS‐CreditRisk is a novel stress testing approach that can help authorities gauge banks' capital adequacy related to credit risk. For the first time, it combines the assessment of microprudential capital requirements under Pillars 1 and 2 and macroprudential buffers in a unified, coherent framework. Its core element is an advanced credit portfolio model—SystemicCreditRisk—built upon a rich, nonlinear dependence structure for correlated bank portfolios. The model is applied to a sample of 12 systemically important German banking groups and delivers measures for systemic credit risk and the banks' contributions to it in both baseline and stress scenarios.     

Impaired bank health and default risk

Empirical studies in corporate finance have long been focused on the role of banks in reducing the costs of financial distress. The environment and events in Japan provide a “natural experiment” that allows such empirical studies. The number of bankruptcies steadily increased throughout the 1990s, and peaked in 2000. During this period, Japan's banking sector, in contrast, faced considerable problems regarding the disposal of their bad loans. The purpose of this paper is to investigate how various measures of bank health and how defaults of major trading partners affected the probability of bankruptcy among medium-size firms in Japan. Using probit models, we examine the causes of bankruptcy for unlisted Japanese companies in the late 1990s and early 2000s. We find that several measures of bank-specific financial health have had significant impacts on a borrower's probability of bankruptcy, even when observable characteristics relating to these borrower's financial variables are controlled. In particular, a close bank–firm relationship—which usually reduces the probability of bankruptcy—exacerbates the impacts of a financial crisis, which substantially damages other bank health measures as well.     

Financial Innovation,Basel Accord III,and Bank Value

I examine how financial innovation and Basel III capital requirements in Taiwan respond differently to banking crises and market competition. My panel data set comprises data from thirty-four banks for 2000-2012. I find a significant negative relationship between derivatives and the value of a bank and significant positive relationships among the capital adequacy ratio, bank-specific variables, and the value of a bank. Larger bank size and operational diversification tend to be positively associated with a bank's value, the holding of a relatively high amount of capital requirements, and nonperforming loans that are large. The latter result may simply reflect the scale of economy and improvement of efficiency in terms of financial innovation in the banking sector.     

Fiscal consolidations and bank balance sheets

We empirically investigate the effects of fiscal policy on bank balance sheets, focusing on episodes of fiscal consolidation. To this aim, we employ a very large data set of individual banks' balance sheets, combined with a newly compiled data set on fiscal consolidations. We find that standard capital adequacy ratios such as the Tier-1 ratio tend to improve following episodes of fiscal consolidation: for the median bank in our sample, a 1% of GDP fiscal consolidation increases the Tier-1 capital ratio by around 1.5 percentage points over two years. Our results suggest that this improvement results from a portfolio re-balancing from private to public debt securities which reduces the risk-weighted value of assets. In fact, if fiscal adjustment efforts are perceived as structural policy changes that improve the sustainability of public finances and, therefore, reduce credit risk, the banks' demand for government securities should increase relative to other assets.     

Regulatory and “economic” solvency standards for internationally active banks

One of the most important policy issues for financial authorities is to decide at what level average capital charges should be set. The decision may alternatively be expressed as the choice of an appropriate survival probability for representative banks over a horizon such as a year, often termed a “solvency standard”. This article sheds light on the solvency standards implied by current and possible future G10 bank regulation and on the “economic solvency standard” that banks choose themselves by their own capital setting decisions. In particular, we employ a credit risk model to show that the survival probability implied by the 1988 Basel Accord is between 99.0% and 99.9%. We then demonstrate that if a new Basel Accord were calibrated to such a standard, it would not represent a binding constraint on banks' current operations since most banks employ a solvency standard higher than 99.9%. To show this, we employ a statistical analysis of bank ratings adjusted for the impact of official or other support as well as credit risk model calculations. Lastly, we advance a possible explanation for the conservative capital choices made by banks by showing that swap volumes are highly correlated with credit quality for given bank size. This suggests that banks' access to important credit markets like the swaps markets may provide a significant discipline in the choice of solvency standard.     

The international transmission of bank capital requirements: Evidence from the UK

We use data on UK banks? minimum capital requirements to study the impact of changes to bank-specific capital requirements on cross-border bank loan supply from 1999Q1 to 2006Q4. By examining a sample in which each recipient country has multiple relationships with UK-resident banks, we are able to control for demand effects. We find a negative and statistically significant effect of changes to banks? capital requirements on cross-border lending: a 100 basis point increase in the requirement is associated with a reduction in the growth rate of cross-border credit of 5.5 percentage points. We also find that banks tend to favor their most important country relationships, so that the negative cross-border credit supply response in “core” countries is significantly less than in others. Banks tend to cut back cross-border credit to other banks (including foreign affiliates) more than to firms and households, consistent with shorter maturity, wholesale lending which is easier to roll off and may be associated with weaker borrowing relationships.     

Changes in bank lending standards and the macroeconomy

Identifying macroeconomic effects of credit shocks is difficult because many of the same factors that influence the supply of loans also affect the demand for credit. Using bank-level responses to the Federal Reserve's Loan Officer Opinion Survey, we construct a new credit supply indicator: changes in lending standards, adjusted for the macroeconomic and bank-specific factors that also affect loan demand. Tightening shocks to this credit supply indicator lead to a substantial decline in output and the capacity of businesses and households to borrow from banks, as well as to a widening of credit spreads and an easing of monetary policy.     

Corporate Finance and the Monetary Transmission Mechanism

We analyze the transmission effects of monetary policy in ageneral equilibrium model of the financial sector, with banklending and securities markets. Bank lending is constrainedby capital adequacy requirements, and asymmetric informationadds a cost to outside bank equity capital. In our model, monetarypolicy does not affect bank lending through changes in bankliquidity; rather, it operates through changes in the spreadof bank loans over corporate bonds, which induce changes inthe aggregate composition of financing by firms, and in banks’equity-capital base. The model produces multiple equilibria,one of which displays all the features of a "credit crunch."