Financial System Adaptability and Resilience
Financial systems differ across countries and tend to evolve slowly over time. Their structure is typically stable, but their resilience is often tested. A well-functioning financial system is vital for economic development, as it ensures that capital flows to the most productive and valuable investment opportunities. However, systemic vulnerabilities can have far-reaching consequences. For example, the 2007–08 global financial crisis emerged from within the financial sector itself when complex financial products fuelled a credit bubble in the U.S. housing market, threatening global economic stability when the bubble burst. That event led to extensive policy and regulatory reforms to strengthen financial system resilience.
Financial systems continue to face significant challenges. External shocks like the COVID-19 pandemic, the climate crisis, the green economic transition, and the energy crisis driven by geopolitical conflict all underscore the importance of financial systems that can absorb shocks and adapt to changing economic conditions. Motivated by these pressing issues, we investigate how financial systems respond to crises, which institutions and policies improve resilience, and the role of finance systems' setup in broader economic transformations. We use diverse data sources, including bank and firm-level data, regulatory reports, and house price and election data, to inform evidence-based policy.
Research Cluster
Financial Resilience and RegulationYour contact

- Department Financial Markets
EXTERNAL FUNDING
08.2022 ‐ 07.2025
OVERHANG: Debt overhang and green investments - the role of banks in climate-friendly management of emission-intensive fixed assets
The collaborative project “Debt Overhang and Green Investments” (OVERHANG) aims to investigate the role of banks in the climate-friendly management of emission-intensive fixed assets. This will identify policy-relevant insights on financial regulation, government-controlled lending and financial stability, as well as raise awareness among indebted stakeholders.
01.2015 ‐ 12.2019
Interactions between Bank-specific Risk and Macroeconomic Performance
07.2016 ‐ 12.2018
Relationship Lenders and Unorthodox Monetary Policy: Investment, Employment, and Resource Reallocation Effects
Leibniz Association
We combine a number of unique and proprietary data sources to measure the impact of relationship lenders and unconventional monetary policy during and after the European sovereign debt crisis on the real economy. Establishing systematic links between different research data centers (Forschungsdatenzentren, FDZ) and central banks with detailed micro-level information on both financial and real activity is the stand-alone proposition of our proposal. The main objective is to permit the identification of causal effects, or their absence, regarding which policies were conducive to mitigate financial shocks and stimulate real economic activities, such as employment, investment, or the closure of plants.
Refereed Publications

Badly Hurt? Natural Disasters and Direct Firm Effects
in: Finance Research Letters, 2019
Abstract
We investigate firm outcomes after a major flood in Germany in 2013. We robustly find that firms located in the disaster regions have significantly higher turnover, lower leverage, and higher cash in the period after 2013. We provide evidence that the effects stem from firms that already experienced a similar major disaster in 2002. Overall, our results document a positive net effect on firm performance in the direct aftermath of a natural disaster.

How Do Banks React to Catastrophic Events? Evidence from Hurricane Katrina
in: Review of Finance, No. 1, 2019
Abstract
This paper explores how banks react to an exogenous shock caused by Hurricane Katrina in 2005, and how the structure of the banking system affects economic development following the shock. Independent banks based in the disaster areas increase their risk-based capital ratios after the hurricane, while those that are part of a bank holding company on average do not. The effect on independent banks mainly comes from the subgroup of highly capitalized banks. These independent and highly capitalized banks increase their holdings in government securities and reduce their total loan exposures to non-financial firms, while also increasing new lending to these firms. With regard to local economic development, affected counties with a relatively large share of independent banks and relatively high average bank capital ratios show higher economic growth than other affected counties following the catastrophic event.

Senior Debt and Market Discipline: Evidence from Bank-to-bank Loans
in: Journal of Banking and Finance, 2019
Abstract
We empirically investigate whether taking senior bank loans would enhance market discipline and control risk-taking among borrowing banks. Controlling for endogeneity concern arising from borrowing bank self-select into taking senior bank debt, we document that both the spreads and covenants in loan contracts are sensitive to bank risk variables. Our analysis also reveals that borrowing banks reduce their risk exposure after their first issuance of senior bank debt. We also find that lending banks significantly increase their collaboration with borrowing banks and increase their presence in the home markets of borrowing banks.

Accounting Quality in Banking: The Role of Regulatory Interventions
in: Journal of Banking and Finance, 2018
Abstract
Using the full sample of U.S. banks and hand-collected data on enforcement actions over 2000–2014, we analyze the role of these interventions in promoting several aspects of accounting quality. We find that enforcement actions issued for both risk-related and accounting-related reasons lead to significant improvements in accounting quality. This improvement is consistently found for earnings smoothing, big-bath accounting, timely recognition of future loan losses, the association of loan loss provisions with future loan charge offs, loss avoidance, and cash flow predictability and earnings persistence. Most of the effects are somewhat more potent in the crisis period and survive in several sensitivity tests. Our findings highlight the imperative role of regulatory interventions in promoting bank accounting quality.

SMEs and Access to Bank Credit: Evidence on the Regional Propagation of the Financial Crisis in the UK
in: Journal of Financial Stability, 2018
Abstract
We study the sensitivity of banks’ credit supply to small and medium size enterprises (SMEs) in the UK with respect to the banks’ financial condition before and during the financial crisis. Employing unique data on the geographical location of all bank branches in the UK, we connect firms’ access to bank credit to the financial condition (i.e., bank health and the use of core deposits) of all bank branches in the vicinity of the firm for the period 2004–2011. Before the crisis, banks’ local financial conditions did not influence credit availability irrespective of the functional distance (i.e., the distance between bank branch and bank headquarters). However, during the crisis, we find that SMEs with banks within their vicinity that have stronger financial conditions faced greater credit availability when the functional distance is close. Our results point to a “flight to headquarters” effect during the financial crisis.
Working Papers

Ecological Preferences and the carbon Intensity of Corporate Investment
in: IWH Discussion Papers, No. 2, 2025
Abstract
<p>Lowering carbon intensity in manufacturing is necessary to transform current production technologies. We test if local agents’ preferences, revealed by vote shares for the Green party during local elections in Germany, relate to the carbon intensity of investments in production technologies. Our sample comprises all investment choices made by manufacturing establishments from 2005-2017. Our results suggest that ecological preferences correlate with significantly fewer carbon-intensive investment projects while investments stimulating growth and reducing carbon emissions increase by 14 percentage points. Both results are more distinct in federal states where the Green Party enjoys political power and local ecological preferences are high.</p>

Green Investing, Information Asymmetry, and Capital Structure
in: IWH Discussion Papers, No. 20, 2023
Abstract
We investigate how optimal attention allocation of green-motivated investors changes information asymmetry in financial markets and thus affects firms‘ financing costs. To guide our empirical analysis, we propose a model where investors with heterogeneous green preferences endogenously allocate limited attention to learn market-level or firm-specific fundamental shocks. We find that a higher fraction of green investors in the market leads to higher aggregate attention to green firms. This reduces the information asymmetry of green firms, leading to higher price informativeness and lower leverage. Moreover, the information asymmetry of brown firms and the market increases with the share of green investors. Therefore, greater green attention is associated with less market efficiency. We provide empirical evidence to support our model predictions using U.S. data. Our paper shows how the growing demand for sustainable investing shifts investors‘ attention and benefits eco-friendly firms.

Long-run Competitive Spillovers of the Credit Crunch
in: IWH Discussion Papers, No. 10, 2023
Abstract
Competition in the U.S. appears to have declined. One contributing factor may have been heterogeneity in the availability of credit during the financial crisis. I examine the impact of product market peer credit constraints on long-run competitive outcomes and behavior among non-financial firms. I use measures of lender exposure to the financial crisis to create a plausibly exogenous instrument for product market credit availability. I find that credit constraints of product market peers positively predict growth in sales, market share, profitability, and markups. This is consistent with the notion that firms gained at the expense of their credit constrained peers. The relationship is robust to accounting for other sources of inter-firm spillovers, namely credit access of technology network and supply chain peers. Further, I find evidence of strategic investment, i.e. the idea that firms increase investment in response to peer credit constraints to commit to deter entry mobility. This behavior may explain why temporary heterogeneity in the availability of credit appears to have resulted in a persistent redistribution of output across firms.

Banking Market Deregulation and Mortality Inequality
in: Bank of Finland Research Discussion Papers, No. 14, 2022
Abstract
This paper shows that local banking market conditions affect mortality rates in the United States. Exploiting the staggered relaxation of branching restrictions in the 1990s across states, we find that banking deregulation decreases local mortality rates. This effect is driven by a decrease in the mortality rate of black residents, implying a decrease in the black-white mortality gap. We further analyze the role of mortgage markets as a transmitter between banking deregulation and mortality and show that households' easier access to finance explains mortality dynamics. We do not find any evidence that our results can be explained by improved labor outcomes.

A Note on the Use of Syndicated Loan Data
in: IWH Discussion Papers, No. 17, 2022
Abstract
<p>Syndicated loan data provided by DealScan is an essential input in banking research. This data is rich enough to answer urging questions on bank lending, e.g., in the presence of financial shocks or climate change. However, many data options raise the question of how to choose the estimation sample. We employ a standard regression framework analyzing bank lending during the financial crisis of 2007/08 to study how conventional but varying usages of DealScan affect the estimates. The key finding is that the direction of coefficients remains relatively robust. However, statistical significance depends on the data and sampling choice and we provide guidelines for applied research.</p>