Jaap Bos, Ralph De Haas, Matteo Millone, 22 March 2016

Screening loan applicants is a key principle of sound banking, but it can be challenging when trustworthy information about applicants is not available. Many countries have therefore introduced credit registries that require banks to share borrower information. This column examines how the introduction of a new registry affected the functioning of the credit market in Bosnia and Herzegovina. Mandatory information sharing allowed loan officers to lend more conservatively at both the extensive and intensive margins. The improved credit allocation improved loan quality and lender profitability.

Di Gong, Harry Huizinga, Luc Laeven, 18 February 2016

Prior to the Global Crisis, banks could easily use off-balance sheet structures to lower their effective capitalisation rates. This column examines another way that US banks circumvented capital regulations – by maintaining minority-owned, non-consolidated subsidiaries. Had these subsidiaries been consolidated, average reported equity-to-assets ratios would have been 3.5% lower. These findings suggest that some US banks were actively misrepresenting the riskiness of their assets prior to the crisis.

Clemens Bonner, 03 January 2016

Economists continue to debate whether preferential treatment in financial regulation increases banks’ demand for government bonds. This column looks at bank purchases of government bonds and other types of bonds when constrained by a capital or liquidity requirement. Financial regulation seems to be a main driver of banks’ demand. If regulators wish to break the vicious circle from weak banks to weak governments, revising financial regulation seems to be a good starting point.

Nikolaos Papanikolaou, Christian Wolff, 06 December 2015

In the years running up to the global crisis, the banking sector was marked by a high degree of leverage. Using US data, this column shows how, before the onset of the crisis, banks accumulated leverage both on and, especially, off their balance sheets. The latter activities saw an increase in maturity mismatch, raised the probability of bank runs, and increased both individual bank risk and systemic risk. These findings support the imposition of an explicit off-balance sheet leverage ratio in future regulatory frameworks.

Avinash Persaud, 20 November 2015

As the recent Financial Stability Board decision on loss-absorbing capital shows, repairing the financial system is still a work in progress. This column reviews the author’s new book on the matter, Reinventing Financial Regulation: A Blueprint for Overcoming Systemic Risks. It argues that financial institutions should be required to put up capital against the mismatch between each type of risk they hold and their natural capacity to hold that type of risk. 

Philip Lane, 07 September 2015

In the lead up to the global financial crisis, there was a substantial credit boom in advanced economies. In the Eurozone, cross-border flows played an especially important role in the boom-bust cycle. This column examines how the common currency and linkages between member states contributed to the Eurozone crisis. A very strong relationship between pre-crisis levels of external imbalances and macroeconomic performance since 2008 is observed. The findings point to the importance of delinking banks and sovereigns, and the need for macro-financial policies that manage the risks associated with excessive international debt flows.

Esa Jokivuolle, Jussi Keppo, Xuchuan Yuan, 23 July 2015

Bankers’ compensation has been indicted as a contributing factor to the Global Crisis. The EU and the US have responded in different ways – the former legislated bonus caps, while the latter implemented bonus deferrals. This column examines the effectiveness of these measures, using US data from just before the Crisis. Caps are found to be more effective in reducing the risk-taking by bank CEOs.

Philippe Karam, Ouarda Merrouche, Moez Souissi, Rima Turk, 02 February 2015

In the wake of the Crisis, policymakers have introduced liquidity regulation to promote the resilience of banks and lower the social cost of crisis management. This column shows that a funding liquidity shock, manifested as lower access to wholesale sources of funding following a credit rating downgrade, translates into a significant decline in both domestic and foreign lending. Liquidity self-insurance by banks mitigates the impact of a credit rating downgrade on lending.

Tomohiko Inui, Keiko Ito, Daisuke Miyakawa, 06 January 2015

While large Japanese firms have been present internationally for years, small firms have found it difficult to overcome the information obstacles associated with entering overseas markets. This column argues that lender banks can help as they not only provide financial support but also business consulting services using their extensive knowledge obtained through lending transactions. It shows that small and medium firms whose lender banks accumulate more overseas market information are more likely to start exporting.

Morris Goldstein, 18 November 2014

Results from last month’s EU-wide stress test are reassuring, especially for countries at Europe’s core. This column warns against a rosy interpretation. The test relies on risk-weighted measures of bank capital ratios that have been shown to be less predictive of bank failure than unweighted leverage ratios – a metric already adopted by the US Fed and Bank of England. In addition, many experts recommend much higher leverage ratios than currently required. The ECB must do more to fix undercapitalisation.

Nicola Gennaioli, Alberto Martin, Stefano Rossi, 19 July 2014

There is growing concern – but little systematic evidence – about the relationship between sovereign default and banking crises. This column documents the link between public default, bank bondholdings, and bank loans. Banks hold many public bonds in normal times (on average 9% of their assets), particularly in less financially developed countries. During sovereign defaults, banks increase their exposure to public bonds – especially large banks, and when expected bond returns are high. At the bank level, bondholdings correlate negatively with subsequent lending during sovereign defaults.

Anil Kashyap , Dimitri Tsomocos, Alexandros Vardoulakis, 18 July 2014

Do the extant workhorse models used in policy analysis support macroprudential and macrofinancial policies? This column argues that this is not the case and describes a new macroprudential model that stresses the special role played by banks. The model also accounts for two, often neglected, key principles of the financial systems. Some of the findings of the model could carry over to other, more general settings that satisfy these two principles.

Mark Mink, Jakob de Haan, 24 May 2014

To date, much uncertainty exists about how large the spillovers would be from the default of a systemically important bank. This column shows evidence that the market values of US and EU banks hardly respond to changes in the default risk of banks that the Financial Stability Board considers globally systemically important (G-SIBs). However, changes in all G-SIBs’ default risk explain a substantial part of changes in bank market values. These findings have implications for financial-crisis management and prevention policies.

Martin Brown, Stefan Trautmann, Razvan Vlahu, 10 April 2014

Contagious bank runs are an important source of systemic risk. However, with observational data it is near-impossible to disentangle the contagion of bank runs from other potential causes of correlated deposit withdrawals across banks. This column discusses an experimental investigation of the mechanisms behind contagion. The authors find that panic-based deposit withdrawals can be strongly contagious across banks, but only if depositors know that the banks are economically related.

Joseph Noss, Priscilla Toffano, 06 April 2014

The impact of tighter regulatory capital requirements during an economic upswing is a key question in macroprudential policy. This column discusses research suggesting that an increase of 15 basis points in aggregate capital ratios of banks operating in the UK is associated with a median reduction of around 1.4% in the level of lending after 16 quarters. The impact on quarterly GDP growth is statistically insignificant, a result that is consistent with firms substituting away from bank credit and towards that supplied via bond markets.

Charles Calomiris, 21 March 2014

Charles Calomiris talks to Romesh Vaitilingam about his recent book, co-authored with Stephen Haber, ‘Fragile by Design: The Political Origins of Banking Crises and Scarce Credit’. They discuss how politics inevitably intrudes into bank regulation and why banking systems are unstable in some countries but not in others. Calomiris also presents his analysis of the political and banking history of the UK and how the well-being of banking systems depends on complex bargains and coalitions between politicians, bankers and other stakeholders. The interview was recorded in London in February 2014.

Viral Acharya, 14 March 2014

Viral Acharya talks to Viv Davies about his recent work with Sascha Steffen that, using publicly available data and a series of shortfall measures, estimates the capital shortfalls of EZ banks that will be stress-tested under the proposed Asset Quality Review. They also discuss the difference in accounting rules between US and EZ banks and the future potential for banking union in the Eurozone. The interview was recorded by phone on 25 February 2014.

Clemens Bonner, 06 February 2014

Liquidity risks can be a primary source of bank failures. As such, there are arguments not to rely on a single metric for providing supervision. This column describes research on detailed cases of failed and near-failed institutions, which helps highlight gaps in current practices of liquidity stress testing. It also gives guidance on how to design liquidity stress tests. Deposit insurance coverage, the heterogeneity of lending commitments, distinction between different types of repos, committed facilities, and derivative transactions should receive increased attention when designing liquidity stress tests.

Viral Acharya, Sascha Steffen, 17 January 2014

The Single Supervisory Mechanism – a key pillar of the Eurozone banking union – will transfer supervision of Europe’s largest banks to the ECB. Before taking over this role, the ECB will conduct an Asset Quality Review to identify these banks’ capital shortfalls. This column discusses recent estimates of these shortfalls based on publicly available data. Estimates such as these can defend against political efforts to blunt the AQR’s effectiveness. The results suggest that many banks’ capital needs can be met with common equity issuance and bail-ins, but that public backstops might still be necessary in some cases.

Willem Buiter, 10 January 2014

Fiscal sustainability has become a hot topic as a result of the European sovereign debt crisis, but it matters in normal times, too. This column argues that financial sector reforms are essential to ensure fiscal sustainability in the future. Although emerging market reforms undertaken in the aftermath of the financial crises of the 1990s were beneficial, complacency is not warranted. In the US, political gridlock must be overcome to reform entitlements and the tax system. In the Eurozone, creating a sovereign debt restructuring mechanism should be a priority.