Knowledge that Transforms

The establishment of the European Banking Union constitutes a major change in the regulatory framework of the banking system. Main parts are implemented via directives that show staggered transposition timing across EU member states. Based on the newly compiled Banking Union Directives Database, we assess how banks’ funding costs responded to the Capital Requirements Directive IV (CRD IV). We find evidence of a weak increase in funding costs that results from an increase in cost of equity which is mostly offset by a decline in cost of debt. The diverging trends stem from countries with an ex-ante lower regulatory capital stringency and an ex-post quicker activation of capital buffers, which is in line with banks’ short-run adjustment needs but longer-run benefits from increased financial stability.

We examine the impact of different types of oil price volatility shocks on firm’s systemic risk using a large panel dataset of US firms. Oil price volatility shocks occur due to changes in supply or demand for oil, or through idiosyncratic fluctuations of oil prices. Our findings indicate that the supply-driven or idiosyncratic oil price volatility shocks reduce systemic risk, whereas demand-driven shocks have the opposite effect. Large-cap and high-beta firms amplify the impact of oil price volatility shocks on firms’ systemic risk. Importantly, firms with extensive supply chain networks exacerbate systemic risk when facing demand-driven oil price volatility shocks.

This paper provides evidence of a flight home effect in the syndicated loan market during the COVID-19 pandemic, where lenders rebalance their loan portfolios towards domestic borrowers. Specifically, a one standard deviation increase in COVID exposure in the lenders’ home country is associated with a 4.1 percentage point decrease in lenders’ share of foreign loans. This home bias eases with the intensity of government restrictions during the pandemic and strengthens with expansionary monetary policy. We further pinpoint an operative supply-side mechanism, where smaller, less capitalized banks with a higher proportion of non-performing loans are more likely to rebalance towards domestic borrowers. Although different forms of asymmetric information exert a material – yet not uniform – effect on the lenders’ rebalancing decisions, the flight home effect emerges independently of the existence of these information asymmetries.

We exploit staggered real estate transaction tax (RETT) hikes across German states to identify the effect on the growth rates of regional house prices and outstanding mortgage loans by all local German banks. The results show that a RETT hike by one percentage point reduces regional house prices by 3%–4%. Furthermore, IV-regressions yield that a 1 percentage point drop in regional house prices induced by a RETT increase leads to a 0.3% decline in regional mortgage lending, particularly among low-capitalized banks in rural regions.

We examine whether a firm’s organization capital (OC) affects its labor investment efficiency. We find that a higher level of OC is related to lower deviations from the optimal level of labor investment according to economic conditions (higher labor investment efficiency). We find that this result is empirically robust to a stacked difference-in-differences approach using exogenous CEO turnover as a quasi-natural experiment and planned CEO retirements and forced CEO turnovers as placebo tests. We identify that the ability to retain talented employees and reduction of agency costs are the two channels by which OC improves a firm’s labor investment efficiency. Furthermore, we report that the positive effect of OC on labor investment efficiency is more pronounced in firms in highly competitive markets, firms with better access to external financing and firms with highly skilled labor.

This paper analyzes financial contagion in a banking system where banks are linked to each other by interbank claims and common assets. We find that asset commonality makes banking systems more vulnerable to idiosyncratic liquidity shocks and helps to determine which interbank network structures are resistant to contagion. When the degree of commonality is homogeneous across banks, the complete interbank network, in which each bank borrows evenly from all the others, displays the usual robust-yet-fragile property. However, in the more general case of heterogeneous common asset holdings the complete interbank network is less resilient than other incomplete networks but not necessarily the most fragile. We also show that the degree and variability of asset commonality between banks and the way this intertwines with the cross-holdings of interbank deposits have important implications for macroprudential regulation.

We show the possibility of negative nominal interest rates in a general equilibrium model with financial intermediation. We establish that the decentralization of the planner’s steady state requires a zero nominal lending rate on bank loans to firms, as well as a negative nominal lending rate on central bank loans to banks. We also find that implementing the planner’s steady state requires firms to be bound by collateral requirements that limit their leverage. The key driver of the results is the very defining characteristic of banking, namely banks’ ability to create money by opening deposit accounts that borrowers can withdraw from, and that are unbacked by household deposits. Our results can be used to rationalize the ultra-low rates policy implemented by major central banks in the second half of the 2010’s and early 2020’s.

This paper investigates the impact of macroprudential policy on sovereign risk. As long as macroprudential policy improves financial stability, it lowers sovereign risk and enables governments to increase spending without raising taxes. Consequently, countries with tighter macroprudential policies have lower primary budget balances and accumulate government debt over time. However, this effect diminishes or reverses when there is excessive regulation or high levels of debt. These findings are somewhat paradoxical: macroprudential policy may lower private debt, while increasing public debt.

Decentralized Autonomous Organization (DAO) is very popular in Decentralized Finance (DeFi) applications as it provides a decentralized governance solution through blockchain. We analyze the governance characteristics in the Maker protocol, its stablecoin DAI and its governance token Maker (MKR). To achieve that, we establish several measurements of centralized governance. Our empirical analysis investigates the effect of centralized governance over a series of factors related to MKR and DAI, such as financial, network and Twitter sentiment indicators. Our results show that governance centralization influences the Maker protocol and that the distribution of voting power matters. The main implication of this study is that centralized governance in MakerDAO very much exists, while DeFi investors face a trade-off between decentralization and performance of a DeFi protocol. This further contributes to the contemporary debate over whether DeFi can be truly decentralized.

This empirical study investigates whether a strong bank culture may help strengthen, weaken, or have no effect on the relationship between regulatory capital and liquidity creation. Using a machine learning approach and banks’ 10-K reports, we first measure the corporate culture of selected bank holding companies (BHCs) in the United State (U.S.) over the period between 1995 and 2019. We find that bank culture does affect the link between regulatory capital and liquidity creation. In particular, while we find that regulatory capital has a negative impact on bank liquidity creation, a strong culture in a bank weakens this negative association. We also find that an increase in asset-side liquidity creation is the main channel through which bank culture exerts its moderating role. Finally, our results are largely driven by smaller banks, banks with a more traditional funding structure and more profitable banks. The results of this study suggest that regulators should consider bank culture as being a crucial element in the monitoring approach when designing bank regulation and supervision.