[Job market paper]

with Jin Cao (Norges Bank) and Ragnar Juelsrud (Norges Bank)

Norges Bank Working Paper 6/2021

AEA (Poster, scheduled Jan 2022), DGF Innsbruck (scheduled Oct 2021), NBRE Spring Meeting 2021*, Norges Bank Brown Bag 2019

*presented by co-author

We use administrative and supervisory data at the bank- and loan-level to investigate the impact of the introduction of covered bonds on the composition of bank balance sheets and bank risk. Covered bonds, despite being collateralized by mortgages, lead to a shift from mortgage to firm lending. In particular, young and low rated firms receive more lending, suggesting that overall credit risk increases. Meanwhile we find that total balance sheet liquidity increases. We identify the channel in a theoretical model and provide empirical evidence: Banks with low initial liquidity and banks with sufficiently high risk-adjusted return in firm lending drive the results.

[Working Paper]

IWH Discussion Papers No.22/2019*

AEA (Poster, scheduled Jan 2022), Day-ahead workshop University of Zurich (scheduled Oct 2021), DGF Doctoral Workshop Innsbruck (scheduled Sept 2021), WEAI 2021, Norges Bank Brown Bag 2019, EEA Manchester 2019, PHD consortium at the Spanish Finance Forum 2019, WIMFEH Berlin 2019, AFA Atlanta 2019 (Poster)

Unconventional monetary policy can stimulate lending from weak banks to weak firms. Do changes in lending behavior induce spillover effects between firms within agglomerations? By exploiting the first asset purchase program of the ECB, I show that firms linked to banks which benefit from asset purchases invest less and induce negative spillovers on firms operating in the same region and sector. The finding is important for two reasons: First, it provides evidence on how zombie lending can delay economic recovery. Second, it shows the importance to consider spillovers when assessing unconventional monetary policy because spillovers can cover up direct effects.

*Formerly circulated under the title "Win-win or joy and sorrow? Spillover of asset purchases within the real sector"

[Working Paper]

with Manfred Antoni (IAB) and Steffen Müller (IWH)

IWH Discussion Papers No.12/2019

ProdTalk No.7 2021, Chicago Financial Institutions Conference*, GdRE Besancon 2019, C.R.E.D.I.T. 2019 (Poster), FINEST Workshop 2019

*scheduled presentation by co-author was cancelled due to Covid.

Asset purchase programs (APPs) may allow banks to continue lending to unproductive customers. Using administrative plant and bank data, we test whether APPs impinge on industry dynamics in terms of plant entry and exit. Plants in Germany connected to banks with access to an APP are approximately 20% less likely to exit. In particular, unproductive plants connected to weak banks with APP access are less likely to close. Aggregate entry and exit rates in regional markets with high APP exposures are also lower. Thus, APPs seem to subdue Schumpeterian cleansing mechanisms, which may hamper factor reallocation and aggregate productivity growth.


Complexity and bank risk during the financial crisis, Economics Letters 150: 118-121 (2017).

with Thomas Krause (Danmarks Nationalbank) and Lena Tonzer (Vrije Universiteit Amsterdam , IWH)


We construct a novel dataset to measure banks’ complexity and relate it to banks’ riskiness. The sample covers stock listed Euro area banks from 2007 to 2014. Bank stability is significantly affected by complexity, whereas the direction of the effect differs across complexity measures.