Knowledge that Transforms

The financial stability of the eurozone depends on its macroeconomic stability and vice versa. We construct a macro DSGE model of the eurozone and its two main regions, the North and the South, with the aim of matching the macro facts of these economies by indirect inference and using the resulting empirically-based model to assess possible new policy regimes that could maintain financial stability. The model we have found to fit the facts suggests that substantial gains in stability and consumer welfare are possible if the fiscal authority in each region is given the freedom to respond to its own economic situation. Further gains could come with the restoration of monetary independence to the two regions, in effect creating a second ‘southern euro’ bloc. Enhanced fiscal flexibility increases fluctuations in debt and deficit ratios to GDP while keeping average ratios stable, maintaining solvency. A reformed Stability and Growth Pact could be limited to monitoring solvency.

We discuss the implications on banks and the economy of prudential regulatory intervention to soften the treatment of non-performing exposures (NPEs) and ease bank capital buffers. We apply these easing measures on a sample of Globally Systemically Important Banks (G-SIBs) and show that these banks can play a constructive role in sustaining economic growth during the COVID-19 pandemic. In addition, an empirical analysis shows that prudential regulatory responses to COVID-19 along with high regulatory capital and low non-performing loans ratios are positively associated with economic growth. Thus, banks should maintain high capital ratios in the medium-term horizon to absorb future losses, as the effect of COVID-19 on the economy might take time to fully materialize.

Relying on a hand-collected data set of European asset securitizations, we analyze risk retention, a key regulatory reform requirement after the global financial crisis. We find today’s ABS markets to be characterized by significant retention opacity, caused by differences in legal retention options and retained portions. To improve the transparency of effective, rather than nominal, risk retention in the market, we propose a new, simple metric that captures the share of expected loss retained by the issuer. As to policy conclusions, we suggest to change the existing regulation by dropping the mandatory minimum retention and replacing it with a requirement for full transparency about effective risk retention.

We propose a new measure of systemic financial distress that incorporates idiosyncratic and systemic risks in the financial system network. Using this measure, we develop an integrated stress test of bank liquidity and solvency risks based on the dynamics of financial distress within the banking system network. We apply this stress test framework to the US banking system and identify systemic vulnerability of individual banks as well as the resilience of the system as a whole to an economic shock. The framework helps us identify and monitor systemic interdependencies between banks. The proposed stress testing framework is useful for practical macroprudential monitoring and is informative for policy making.

Cyber incidents are becoming more sophisticated and their costs difficult to quantify. Using a unique database of cyber events across sectors in the US, we document the characteristics and drivers of cyber incidents. Cyber costs are higher for larger firms and for incidents that impact several organisations simultaneously. Events with malicious intent (i.e. cyber attacks) tend to be less costly, unless they are on the upper tail of the loss distribution. The financial sector is exposed to a larger number of cyber attacks but suffers lower costs, on average. The use of cloud services is associated with lower costs, especially when cyber incidents are relatively small. As cloud providers become systemically important, cloud dependence is likely to increase tail risks. Finally, we document that higher expenditure on IT is associated with future reduced costs from cyber incidents.

We examine a policy in which owners of banks provide funds in the form of a surety bond in addition to equity capital. This policy would require banks to provide the regulator with funds that could be invested in marketable securities. Investors in the bank receive the income from the surety bond as long as the bank is in business. The capital value could be used by bank regulators to pay off the banks’ liabilities in case of bank failure. After paying depositors, investors would receive the remaining funds, if any. Analytically, this instrument is a way of creating charter value but, as opposed to Keeley (1990) and Hellman, Murdock and Stiglitz (2000), restrictions on competition are not necessary to generate positive rents. We demonstrate that capital requirements alone cannot prevent the moral hazard problem arising from deposit insurance.

This study investigates the impact of banks’ strategic move to cloud computing on bank performance and risk-taking. Based on a novel index of banks’ exposure to cloud computing, we find that banks’ adoption of cloud computing is associated with lower cost efficiency, higher profit efficiency, and greater operational risk using data on Chinese banks over the period 2008–2019. We also find that cloud computing interacts with other newly emerging technologies, leading to synergy gains in cost efficiency and operational risk control but with a substitutive effect on profit efficiency from blockchain. The findings are of timely policy importance and practical relevance for regulators, policy-makers, and bank managers.

Using political corruption conviction data from the U.S. Department of Justice, we examine the impact of local corruption on firms’ debt maturity structure while exploring both demand-side and supply-side explanations. Our results support the demand-side story and indicate that firms in high corruption areas utilize less short-term debt to mitigate liquidity and refinancing risks. Consistent with this, we find the effect is more pronounced among firms with smaller size, lower asset redeployability, and higher volatility. Our findings remain robust to the inclusion of an array of controls expected to influence debt maturity preferences as well as time, industry, and state fixed effects. Moreover, a seemingly unrelated regression approach, instrumental variables regression, propensity score matching, placebo analyses, and alternative corruption measures corroborate our findings. Altogether, our results indicate that firms alter their debt maturity choices in response to local corruption to limit refinancing risk and the uncertainty created by corrupt government officials.

Stock repurchases are controversial. Researchers often view the positive association between free cash flow and the volume of the stock repurchases to be in the shareholders’ interest and the positive association between executive options and stock repurchases to be in the managers’ interest. Using firms’ corporate social responsibility (CSR) ratings as a measure of ethical culture—one that increases the cost of self-serving behavior for managers— we examine whether a firm’s CSR rating is related to its stock repurchase decisions. Although the baseline regression shows a positive association between CSR and repurchases, we find that CSR amplifies the positive association between free cash flow and stock repurchases and lessens the positive association between executive options and stock repurchases. These results indicate that ethical culture might play a role in repurchase decisions: it may encourage repurchases aligned with shareholders’ interests and discourage those primarily in managers’ interest. Furthermore, we also find that high CSR firms are associated with a greater completion rate of announced repurchase programs and receive more favorable stock market reaction to their repurchase announcements.

Central Bank Digital Currencies (CBDC) have attracted considerable interest and its deployment on a global scale is imminent. However, CBDC face several challenges. They include: legal, technological, and political considerations. We summarize those challenges and add a few more that have not received much attention in the literature. We then focus on two forms of CBDC: a narrow version that only replaces notes and coins and a broader form with a deposit feature. The narrow CBDC is the most likely one to be first introduced. Next, relying on evidence of past episodes of financial innovation, and using cross-country data, we explore the hypothetical impact of CBDC on inflation and financial stability, based on the historical behaviour of the velocity of circulation and incorporating a CBDC’s impact using McCallum’s policy rule which sets the stance of monetary policy based on money growth. Our simulations suggest that CBDC need not produce higher inflation, but financial stability remains at risk. We provide some policy implications.